194 files changed, 37386 insertions, 0 deletions
diff --git a/tests/gnu/Makefile.am b/tests/gnu/Makefile.am
new file mode 100755
index 00000000..f75fd8a4
--- /dev/null
+++ b/tests/gnu/Makefile.am
@@ -0,0 +1,1159 @@
+## DO NOT EDIT! GENERATED AUTOMATICALLY!
+## Process this file with automake to produce Makefile.in.
+# Copyright (C) 2002-2010 Free Software Foundation, Inc.
+#
+# This file is free software, distributed under the terms of the GNU
+# General Public License.  As a special exception to the GNU General
+# Public License, this file may be distributed as part of a program
+# that contains a configuration script generated by Autoconf, under
+# the same distribution terms as the rest of that program.
+#
+# Generated by gnulib-tool.
+
+AUTOMAKE_OPTIONS = 1.5 foreign subdir-objects
+
+SUBDIRS =
+TESTS =
+XFAIL_TESTS =
+TESTS_ENVIRONMENT =
+noinst_PROGRAMS =
+check_PROGRAMS =
+noinst_HEADERS =
+noinst_LIBRARIES =
+check_LIBRARIES = libtests.a
+EXTRA_DIST =
+BUILT_SOURCES =
+SUFFIXES =
+MOSTLYCLEANFILES = core *.stackdump
+MOSTLYCLEANDIRS =
+CLEANFILES =
+DISTCLEANFILES =
+MAINTAINERCLEANFILES =
+
+AM_CPPFLAGS = \
+  -I. -I$(srcdir) \
+  -I../.. -I$(srcdir)/../.. \
+  -I../../gnu -I$(srcdir)/../../gnu
+
+LDADD = libtests.a ../../gnu/libgnu.la libtests.a $(LIBTESTS_LIBDEPS)
+
+libtests_a_SOURCES =
+libtests_a_LIBADD = $(M4tests_LIBOBJS)
+libtests_a_DEPENDENCIES = $(M4tests_LIBOBJS)
+EXTRA_libtests_a_SOURCES =
+AM_LIBTOOLFLAGS = --preserve-dup-deps
+
+TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='$(srcdir)'
+
+## begin gnulib module alloca-opt-tests
+
+TESTS += test-alloca-opt
+check_PROGRAMS += test-alloca-opt
+
+EXTRA_DIST += test-alloca-opt.c
+
+## end   gnulib module alloca-opt-tests
+
+## begin gnulib module arg-nonnull
+
+# The BUILT_SOURCES created by this Makefile snippet are not used via #include
+# statements but through direct file reference. Therefore this snippet must be
+# present in all Makefile.am that need it. This is ensured by the applicability
+# 'all' defined above.
+
+BUILT_SOURCES += arg-nonnull.h
+# The arg-nonnull.h that gets inserted into generated .h files is the same as
+# build-aux/arg-nonnull.h, except that it has the copyright header cut off.
+arg-nonnull.h: $(top_srcdir)/build-aux/arg-nonnull.h
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	sed -n -e '/GL_ARG_NONNULL/,$$p' \
+	  < $(top_srcdir)/build-aux/arg-nonnull.h \
+	  > $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += arg-nonnull.h arg-nonnull.h-t
+
+ARG_NONNULL_H=arg-nonnull.h
+
+EXTRA_DIST += $(top_srcdir)/build-aux/arg-nonnull.h
+
+## end   gnulib module arg-nonnull
+
+## begin gnulib module array-list
+
+libtests_a_SOURCES += gl_array_list.h gl_array_list.c
+
+## end   gnulib module array-list
+
+## begin gnulib module array-list-tests
+
+TESTS += test-array_list
+check_PROGRAMS += test-array_list
+
+EXTRA_DIST += test-array_list.c macros.h
+
+## end   gnulib module array-list-tests
+
+## begin gnulib module array-oset
+
+libtests_a_SOURCES += gl_array_oset.h gl_array_oset.c
+
+## end   gnulib module array-oset
+
+## begin gnulib module array-oset-tests
+
+TESTS += test-array_oset
+check_PROGRAMS += test-array_oset
+test_array_oset_LDADD = $(LDADD) @LIBINTL@
+
+EXTRA_DIST += test-array_oset.c macros.h
+
+## end   gnulib module array-oset-tests
+
+## begin gnulib module avltree-oset-tests
+
+TESTS += test-avltree_oset
+check_PROGRAMS += test-avltree_oset
+EXTRA_DIST += test-avltree_oset.c macros.h
+
+## end   gnulib module avltree-oset-tests
+
+## begin gnulib module binary-io-tests
+
+TESTS += test-binary-io.sh
+check_PROGRAMS += test-binary-io
+
+EXTRA_DIST += test-binary-io.sh test-binary-io.c macros.h
+
+## end   gnulib module binary-io-tests
+
+## begin gnulib module bitrotate-tests
+
+TESTS += test-bitrotate
+check_PROGRAMS += test-bitrotate
+EXTRA_DIST += test-bitrotate.c macros.h
+
+## end   gnulib module bitrotate-tests
+
+## begin gnulib module btowc-tests
+
+TESTS += test-btowc1.sh test-btowc2.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-btowc
+
+EXTRA_DIST += test-btowc1.sh test-btowc2.sh test-btowc.c signature.h macros.h
+
+## end   gnulib module btowc-tests
+
+## begin gnulib module c-ctype-tests
+
+TESTS += test-c-ctype
+check_PROGRAMS += test-c-ctype
+
+EXTRA_DIST += test-c-ctype.c macros.h
+
+## end   gnulib module c-ctype-tests
+
+## begin gnulib module c-strcase-tests
+
+TESTS += test-c-strcase.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_TR_UTF8='@LOCALE_TR_UTF8@'
+check_PROGRAMS += test-c-strcasecmp test-c-strncasecmp
+EXTRA_DIST += test-c-strcase.sh test-c-strcasecmp.c test-c-strncasecmp.c macros.h
+
+## end   gnulib module c-strcase-tests
+
+## begin gnulib module canonicalize-lgpl-tests
+
+TESTS += test-canonicalize-lgpl
+check_PROGRAMS += test-canonicalize-lgpl
+EXTRA_DIST += test-canonicalize-lgpl.c signature.h macros.h
+
+## end   gnulib module canonicalize-lgpl-tests
+
+## begin gnulib module cloexec-tests
+
+TESTS += test-cloexec
+check_PROGRAMS += test-cloexec
+EXTRA_DIST += test-cloexec.c macros.h
+
+## end   gnulib module cloexec-tests
+
+## begin gnulib module closein-tests
+
+TESTS += test-closein.sh
+check_PROGRAMS += test-closein
+test_closein_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-closein.sh test-closein.c
+
+## end   gnulib module closein-tests
+
+## begin gnulib module dirname-tests
+
+TESTS += test-dirname
+check_PROGRAMS += test-dirname
+test_dirname_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-dirname.c
+
+## end   gnulib module dirname-tests
+
+## begin gnulib module dup2-tests
+
+TESTS += test-dup2
+check_PROGRAMS += test-dup2
+EXTRA_DIST += test-dup2.c signature.h macros.h
+
+## end   gnulib module dup2-tests
+
+## begin gnulib module environ-tests
+
+TESTS += test-environ
+check_PROGRAMS += test-environ
+
+EXTRA_DIST += test-environ.c
+
+## end   gnulib module environ-tests
+
+## begin gnulib module errno-tests
+
+TESTS += test-errno
+check_PROGRAMS += test-errno
+
+EXTRA_DIST += test-errno.c
+
+## end   gnulib module errno-tests
+
+## begin gnulib module fcntl-h-tests
+
+TESTS += test-fcntl-h
+check_PROGRAMS += test-fcntl-h
+EXTRA_DIST += test-fcntl-h.c
+
+## end   gnulib module fcntl-h-tests
+
+## begin gnulib module fcntl-tests
+
+TESTS += test-fcntl
+check_PROGRAMS += test-fcntl
+EXTRA_DIST += test-fcntl.c signature.h macros.h
+
+## end   gnulib module fcntl-tests
+
+## begin gnulib module fflush-tests
+
+TESTS += test-fflush test-fflush2.sh
+check_PROGRAMS += test-fflush test-fflush2
+MOSTLYCLEANFILES += test-fflush.txt
+EXTRA_DIST += test-fflush.c test-fflush2.sh test-fflush2.c signature.h macros.h
+
+## end   gnulib module fflush-tests
+
+## begin gnulib module filenamecat-tests
+
+TESTS += test-filenamecat
+check_PROGRAMS += test-filenamecat
+test_filenamecat_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-filenamecat.c
+
+## end   gnulib module filenamecat-tests
+
+## begin gnulib module fopen-safer-tests
+
+TESTS += test-fopen-safer
+check_PROGRAMS += test-fopen-safer
+EXTRA_DIST += test-fopen.h test-fopen-safer.c macros.h
+
+## end   gnulib module fopen-safer-tests
+
+## begin gnulib module fopen-tests
+
+TESTS += test-fopen
+check_PROGRAMS += test-fopen
+
+EXTRA_DIST += test-fopen.h test-fopen.c signature.h macros.h
+
+## end   gnulib module fopen-tests
+
+## begin gnulib module fpending-tests
+
+TESTS += test-fpending.sh
+check_PROGRAMS += test-fpending
+MOSTLYCLEANFILES += test-fpending.t
+EXTRA_DIST += test-fpending.c test-fpending.sh macros.h
+
+## end   gnulib module fpending-tests
+
+## begin gnulib module fpurge-tests
+
+TESTS += test-fpurge
+check_PROGRAMS += test-fpurge
+MOSTLYCLEANFILES += t-fpurge.tmp
+EXTRA_DIST += test-fpurge.c macros.h
+
+## end   gnulib module fpurge-tests
+
+## begin gnulib module freadahead-tests
+
+TESTS += test-freadahead.sh
+check_PROGRAMS += test-freadahead
+EXTRA_DIST += test-freadahead.c test-freadahead.sh macros.h
+
+## end   gnulib module freadahead-tests
+
+## begin gnulib module freading-tests
+
+TESTS += test-freading
+check_PROGRAMS += test-freading
+MOSTLYCLEANFILES += t-freading.tmp
+EXTRA_DIST += test-freading.c macros.h
+
+## end   gnulib module freading-tests
+
+## begin gnulib module freadptr-tests
+
+TESTS += test-freadptr.sh test-freadptr2.sh
+check_PROGRAMS += test-freadptr test-freadptr2
+EXTRA_DIST += test-freadptr.c test-freadptr.sh test-freadptr2.c test-freadptr2.sh macros.h
+
+## end   gnulib module freadptr-tests
+
+## begin gnulib module freadseek-tests
+
+TESTS += test-freadseek.sh
+check_PROGRAMS += test-freadseek
+EXTRA_DIST += test-freadseek.c test-freadseek.sh macros.h
+
+## end   gnulib module freadseek-tests
+
+## begin gnulib module frexp-nolibm-tests
+
+TESTS += test-frexp-nolibm
+check_PROGRAMS += test-frexp-nolibm
+test_frexp_nolibm_SOURCES = test-frexp.c
+EXTRA_DIST += test-frexp.c signature.h macros.h
+
+## end   gnulib module frexp-nolibm-tests
+
+## begin gnulib module frexpl-nolibm-tests
+
+TESTS += test-frexpl-nolibm
+check_PROGRAMS += test-frexpl-nolibm
+test_frexpl_nolibm_SOURCES = test-frexpl.c
+EXTRA_DIST += test-frexpl.c signature.h macros.h
+
+## end   gnulib module frexpl-nolibm-tests
+
+## begin gnulib module fseeko-tests
+
+TESTS += test-fseeko.sh test-fseeko2.sh
+check_PROGRAMS += test-fseeko
+EXTRA_DIST += test-fseeko.c test-fseeko.sh test-fseeko2.sh signature.h macros.h
+
+## end   gnulib module fseeko-tests
+
+## begin gnulib module fseterr-tests
+
+TESTS += test-fseterr
+check_PROGRAMS += test-fseterr
+
+EXTRA_DIST += test-fseterr.c
+
+## end   gnulib module fseterr-tests
+
+## begin gnulib module ftello-tests
+
+TESTS += test-ftello.sh test-ftello2.sh
+check_PROGRAMS += test-ftello
+EXTRA_DIST += test-ftello.c test-ftello.sh test-ftello2.sh signature.h macros.h
+
+## end   gnulib module ftello-tests
+
+## begin gnulib module getdtablesize-tests
+
+TESTS += test-getdtablesize
+check_PROGRAMS += test-getdtablesize
+EXTRA_DIST += test-getdtablesize.c signature.h macros.h
+
+## end   gnulib module getdtablesize-tests
+
+## begin gnulib module getpagesize
+
+
+EXTRA_DIST += getpagesize.c
+
+EXTRA_libtests_a_SOURCES += getpagesize.c
+
+## end   gnulib module getpagesize
+
+## begin gnulib module gettimeofday-tests
+
+TESTS += test-gettimeofday
+check_PROGRAMS += test-gettimeofday
+
+EXTRA_DIST += signature.h test-gettimeofday.c
+
+## end   gnulib module gettimeofday-tests
+
+## begin gnulib module iconv-tests
+
+TESTS += test-iconv
+check_PROGRAMS += test-iconv
+test_iconv_LDADD = $(LDADD) @LIBICONV@
+
+EXTRA_DIST += test-iconv.c signature.h macros.h
+
+## end   gnulib module iconv-tests
+
+## begin gnulib module ignore-value
+
+libtests_a_SOURCES += ignore-value.h
+
+## end   gnulib module ignore-value
+
+## begin gnulib module inttypes-tests
+
+TESTS += test-inttypes
+check_PROGRAMS += test-inttypes
+EXTRA_DIST += test-inttypes.c
+
+## end   gnulib module inttypes-tests
+
+## begin gnulib module isnand-nolibm-tests
+
+TESTS += test-isnand-nolibm
+check_PROGRAMS += test-isnand-nolibm
+
+EXTRA_DIST += test-isnand-nolibm.c test-isnand.h nan.h macros.h
+
+## end   gnulib module isnand-nolibm-tests
+
+## begin gnulib module isnanf-nolibm-tests
+
+TESTS += test-isnanf-nolibm
+check_PROGRAMS += test-isnanf-nolibm
+
+EXTRA_DIST += test-isnanf-nolibm.c test-isnanf.h nan.h macros.h
+
+## end   gnulib module isnanf-nolibm-tests
+
+## begin gnulib module isnanl-nolibm-tests
+
+TESTS += test-isnanl-nolibm
+check_PROGRAMS += test-isnanl-nolibm
+
+EXTRA_DIST += test-isnanl-nolibm.c test-isnanl.h nan.h macros.h
+
+## end   gnulib module isnanl-nolibm-tests
+
+## begin gnulib module langinfo-tests
+
+TESTS += test-langinfo
+check_PROGRAMS += test-langinfo
+EXTRA_DIST += test-langinfo.c
+
+## end   gnulib module langinfo-tests
+
+## begin gnulib module link
+
+
+EXTRA_DIST += link.c
+
+EXTRA_libtests_a_SOURCES += link.c
+
+## end   gnulib module link
+
+## begin gnulib module link-tests
+
+TESTS += test-link
+check_PROGRAMS += test-link
+EXTRA_DIST += test-link.h test-link.c signature.h macros.h
+
+## end   gnulib module link-tests
+
+## begin gnulib module linkedhash-list-tests
+
+TESTS += test-linkedhash_list
+check_PROGRAMS += test-linkedhash_list
+EXTRA_DIST += test-linkedhash_list.c macros.h
+
+## end   gnulib module linkedhash-list-tests
+
+## begin gnulib module lseek-tests
+
+TESTS += test-lseek.sh
+check_PROGRAMS += test-lseek
+EXTRA_DIST += test-lseek.c test-lseek.sh signature.h macros.h
+
+## end   gnulib module lseek-tests
+
+## begin gnulib module lstat-tests
+
+TESTS += test-lstat
+check_PROGRAMS += test-lstat
+EXTRA_DIST += test-lstat.h test-lstat.c signature.h macros.h
+
+## end   gnulib module lstat-tests
+
+## begin gnulib module malloca-tests
+
+TESTS += test-malloca
+check_PROGRAMS += test-malloca
+
+EXTRA_DIST += test-malloca.c
+
+## end   gnulib module malloca-tests
+
+## begin gnulib module math-tests
+
+TESTS += test-math
+check_PROGRAMS += test-math
+EXTRA_DIST += test-math.c
+
+## end   gnulib module math-tests
+
+## begin gnulib module mbrtowc-tests
+
+TESTS += test-mbrtowc1.sh test-mbrtowc2.sh test-mbrtowc3.sh test-mbrtowc4.sh
+TESTS_ENVIRONMENT += \
+  LOCALE_FR='@LOCALE_FR@' \
+  LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+  LOCALE_JA='@LOCALE_JA@' \
+  LOCALE_ZH_CN='@LOCALE_ZH_CN@'
+check_PROGRAMS += test-mbrtowc
+
+EXTRA_DIST += test-mbrtowc1.sh test-mbrtowc2.sh test-mbrtowc3.sh test-mbrtowc4.sh test-mbrtowc.c signature.h macros.h
+
+## end   gnulib module mbrtowc-tests
+
+## begin gnulib module mbsinit-tests
+
+TESTS += test-mbsinit.sh
+TESTS_ENVIRONMENT += LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-mbsinit
+
+EXTRA_DIST += test-mbsinit.sh test-mbsinit.c signature.h macros.h
+
+## end   gnulib module mbsinit-tests
+
+## begin gnulib module mbsstr-tests
+
+TESTS += test-mbsstr1 test-mbsstr2.sh test-mbsstr3.sh
+TESTS_ENVIRONMENT += LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' LOCALE_ZH_CN='@LOCALE_ZH_CN@'
+check_PROGRAMS += test-mbsstr1 test-mbsstr2 test-mbsstr3
+
+EXTRA_DIST += test-mbsstr1.c test-mbsstr2.sh test-mbsstr2.c test-mbsstr3.sh test-mbsstr3.c macros.h
+
+## end   gnulib module mbsstr-tests
+
+## begin gnulib module memchr-tests
+
+TESTS += test-memchr
+check_PROGRAMS += test-memchr
+EXTRA_DIST += test-memchr.c zerosize-ptr.h signature.h macros.h
+
+## end   gnulib module memchr-tests
+
+## begin gnulib module memchr2-tests
+
+TESTS += test-memchr2
+check_PROGRAMS += test-memchr2
+EXTRA_DIST += test-memchr2.c zerosize-ptr.h macros.h
+
+## end   gnulib module memchr2-tests
+
+## begin gnulib module memmem-tests
+
+TESTS += test-memmem
+check_PROGRAMS += test-memmem
+
+EXTRA_DIST += test-memmem.c zerosize-ptr.h signature.h macros.h
+
+## end   gnulib module memmem-tests
+
+## begin gnulib module nl_langinfo-tests
+
+TESTS += test-nl_langinfo.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-nl_langinfo
+EXTRA_DIST += test-nl_langinfo.sh test-nl_langinfo.c signature.h macros.h
+
+## end   gnulib module nl_langinfo-tests
+
+## begin gnulib module obstack-printf
+
+
+EXTRA_DIST += obstack_printf.c
+
+EXTRA_libtests_a_SOURCES += obstack_printf.c
+
+## end   gnulib module obstack-printf
+
+## begin gnulib module obstack-printf-tests
+
+TESTS += test-obstack-printf
+check_PROGRAMS += test-obstack-printf
+test_obstack_printf_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-obstack-printf.c signature.h macros.h
+
+## end   gnulib module obstack-printf-tests
+
+## begin gnulib module open-tests
+
+TESTS += test-open
+check_PROGRAMS += test-open
+EXTRA_DIST += test-open.h test-open.c signature.h macros.h
+
+## end   gnulib module open-tests
+
+## begin gnulib module pipe-tests
+
+TESTS += test-pipe.sh
+check_PROGRAMS += test-pipe
+test_pipe_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-pipe.sh test-pipe.c macros.h
+
+## end   gnulib module pipe-tests
+
+## begin gnulib module pipe2-tests
+
+TESTS += test-pipe2
+check_PROGRAMS += test-pipe2
+EXTRA_DIST += test-pipe2.c signature.h macros.h
+
+## end   gnulib module pipe2-tests
+
+## begin gnulib module posix_spawnp-tests
+
+if POSIX_SPAWN_PORTED
+TESTS += test-posix_spawn1 test-posix_spawn2
+check_PROGRAMS += test-posix_spawn1 test-posix_spawn2
+
+BUILT_SOURCES += test-posix_spawn1.sh
+test-posix_spawn1.sh: test-posix_spawn1.in.sh
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	cp $(srcdir)/test-posix_spawn1.in.sh $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += test-posix_spawn1.sh test-posix_spawn1.sh-t
+
+BUILT_SOURCES += test-posix_spawn2.sh
+test-posix_spawn2.sh: test-posix_spawn2.in.sh
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	cp $(srcdir)/test-posix_spawn2.in.sh $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += test-posix_spawn2.sh test-posix_spawn2.sh-t
+endif
+EXTRA_DIST += test-posix_spawn1.c test-posix_spawn1.in.sh test-posix_spawn2.c test-posix_spawn2.in.sh signature.h
+
+## end   gnulib module posix_spawnp-tests
+
+## begin gnulib module printf-frexp-tests
+
+TESTS += test-printf-frexp
+check_PROGRAMS += test-printf-frexp
+EXTRA_DIST += test-printf-frexp.c macros.h
+
+## end   gnulib module printf-frexp-tests
+
+## begin gnulib module printf-frexpl-tests
+
+TESTS += test-printf-frexpl
+check_PROGRAMS += test-printf-frexpl
+EXTRA_DIST += test-printf-frexpl.c macros.h
+
+## end   gnulib module printf-frexpl-tests
+
+## begin gnulib module putenv
+
+
+EXTRA_DIST += putenv.c
+
+EXTRA_libtests_a_SOURCES += putenv.c
+
+## end   gnulib module putenv
+
+## begin gnulib module quotearg-tests
+
+TESTS += test-quotearg.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-quotearg
+test_quotearg_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-quotearg.sh test-quotearg.c macros.h locale/fr/LC_MESSAGES/test-quotearg.po locale/fr/LC_MESSAGES/test-quotearg.mo
+
+## end   gnulib module quotearg-tests
+
+## begin gnulib module rawmemchr-tests
+
+TESTS += test-rawmemchr
+check_PROGRAMS += test-rawmemchr
+EXTRA_DIST += test-rawmemchr.c signature.h macros.h
+
+## end   gnulib module rawmemchr-tests
+
+## begin gnulib module readlink-tests
+
+TESTS += test-readlink
+check_PROGRAMS += test-readlink
+EXTRA_DIST += test-readlink.h test-readlink.c signature.h macros.h
+
+## end   gnulib module readlink-tests
+
+## begin gnulib module rename-tests
+
+TESTS += test-rename
+check_PROGRAMS += test-rename
+EXTRA_DIST += test-rename.h test-rename.c signature.h macros.h
+
+## end   gnulib module rename-tests
+
+## begin gnulib module rmdir-tests
+
+TESTS += test-rmdir
+check_PROGRAMS += test-rmdir
+EXTRA_DIST += test-rmdir.h test-rmdir.c signature.h macros.h
+
+## end   gnulib module rmdir-tests
+
+## begin gnulib module sched-tests
+
+TESTS += test-sched
+check_PROGRAMS += test-sched
+EXTRA_DIST += test-sched.c
+
+## end   gnulib module sched-tests
+
+## begin gnulib module setenv-tests
+
+TESTS += test-setenv
+check_PROGRAMS += test-setenv
+EXTRA_DIST += test-setenv.c signature.h macros.h
+
+## end   gnulib module setenv-tests
+
+## begin gnulib module sigaction-tests
+
+TESTS += test-sigaction
+check_PROGRAMS += test-sigaction
+EXTRA_DIST += test-sigaction.c signature.h macros.h
+
+## end   gnulib module sigaction-tests
+
+## begin gnulib module signal-tests
+
+TESTS += test-signal
+check_PROGRAMS += test-signal
+EXTRA_DIST += test-signal.c
+
+## end   gnulib module signal-tests
+
+## begin gnulib module signbit-tests
+
+TESTS += test-signbit
+check_PROGRAMS += test-signbit
+
+EXTRA_DIST += test-signbit.c macros.h
+
+## end   gnulib module signbit-tests
+
+## begin gnulib module snprintf-posix-tests
+
+TESTS += test-snprintf-posix test-snprintf
+check_PROGRAMS += test-snprintf-posix test-snprintf
+
+EXTRA_DIST += test-snprintf-posix.c test-snprintf-posix.h test-snprintf.c nan.h signature.h macros.h
+
+## end   gnulib module snprintf-posix-tests
+
+## begin gnulib module snprintf-tests
+
+TESTS += test-snprintf
+check_PROGRAMS += test-snprintf
+
+EXTRA_DIST += test-snprintf.c signature.h macros.h
+
+## end   gnulib module snprintf-tests
+
+## begin gnulib module spawn-tests
+
+TESTS += test-spawn
+check_PROGRAMS += test-spawn
+EXTRA_DIST += test-spawn.c
+
+## end   gnulib module spawn-tests
+
+## begin gnulib module sprintf-posix-tests
+
+TESTS += test-sprintf-posix
+check_PROGRAMS += test-sprintf-posix
+
+EXTRA_DIST += test-sprintf-posix.c test-sprintf-posix.h nan.h signature.h macros.h
+
+## end   gnulib module sprintf-posix-tests
+
+## begin gnulib module stat-tests
+
+TESTS += test-stat
+check_PROGRAMS += test-stat
+EXTRA_DIST += test-stat.h test-stat.c signature.h macros.h
+
+## end   gnulib module stat-tests
+
+## begin gnulib module stdbool-tests
+
+TESTS += test-stdbool
+check_PROGRAMS += test-stdbool
+EXTRA_DIST += test-stdbool.c
+
+## end   gnulib module stdbool-tests
+
+## begin gnulib module stddef-tests
+
+TESTS += test-stddef
+check_PROGRAMS += test-stddef
+EXTRA_DIST += test-stddef.c
+
+## end   gnulib module stddef-tests
+
+## begin gnulib module stdint-tests
+
+TESTS += test-stdint
+check_PROGRAMS += test-stdint
+EXTRA_DIST += test-stdint.c
+
+## end   gnulib module stdint-tests
+
+## begin gnulib module stdio-tests
+
+TESTS += test-stdio
+check_PROGRAMS += test-stdio
+EXTRA_DIST += test-stdio.c
+
+## end   gnulib module stdio-tests
+
+## begin gnulib module stdlib-tests
+
+TESTS += test-stdlib
+check_PROGRAMS += test-stdlib
+EXTRA_DIST += test-stdlib.c
+
+## end   gnulib module stdlib-tests
+
+## begin gnulib module strchrnul-tests
+
+TESTS += test-strchrnul
+check_PROGRAMS += test-strchrnul
+EXTRA_DIST += test-strchrnul.c signature.h macros.h
+
+## end   gnulib module strchrnul-tests
+
+## begin gnulib module strdup-posix
+
+
+EXTRA_DIST += strdup.c
+
+EXTRA_libtests_a_SOURCES += strdup.c
+
+## end   gnulib module strdup-posix
+
+## begin gnulib module strerror-tests
+
+TESTS += test-strerror
+check_PROGRAMS += test-strerror
+EXTRA_DIST += test-strerror.c signature.h macros.h
+
+## end   gnulib module strerror-tests
+
+## begin gnulib module striconv-tests
+
+TESTS += test-striconv
+check_PROGRAMS += test-striconv
+test_striconv_LDADD = $(LDADD) @LIBICONV@
+
+EXTRA_DIST += test-striconv.c macros.h
+
+## end   gnulib module striconv-tests
+
+## begin gnulib module string-tests
+
+TESTS += test-string
+check_PROGRAMS += test-string
+EXTRA_DIST += test-string.c
+
+## end   gnulib module string-tests
+
+## begin gnulib module strtod-tests
+
+LIBS += $(POW_LIB)
+TESTS += test-strtod
+check_PROGRAMS += test-strtod
+EXTRA_DIST += test-strtod.c signature.h macros.h
+
+## end   gnulib module strtod-tests
+
+## begin gnulib module symlink
+
+
+EXTRA_DIST += symlink.c
+
+EXTRA_libtests_a_SOURCES += symlink.c
+
+## end   gnulib module symlink
+
+## begin gnulib module symlink-tests
+
+TESTS += test-symlink
+check_PROGRAMS += test-symlink
+EXTRA_DIST += test-symlink.h test-symlink.c signature.h macros.h
+
+## end   gnulib module symlink-tests
+
+## begin gnulib module sys_stat-tests
+
+TESTS += test-sys_stat
+check_PROGRAMS += test-sys_stat
+EXTRA_DIST += test-sys_stat.c
+
+## end   gnulib module sys_stat-tests
+
+## begin gnulib module sys_time-tests
+
+TESTS += test-sys_time
+check_PROGRAMS += test-sys_time
+EXTRA_DIST += test-sys_time.c
+
+## end   gnulib module sys_time-tests
+
+## begin gnulib module sys_wait-tests
+
+TESTS += test-sys_wait
+check_PROGRAMS += test-sys_wait
+EXTRA_DIST += test-sys_wait.c
+
+## end   gnulib module sys_wait-tests
+
+## begin gnulib module time-tests
+
+TESTS += test-time
+check_PROGRAMS += test-time
+EXTRA_DIST += test-time.c
+
+## end   gnulib module time-tests
+
+## begin gnulib module unistd-safer-tests
+
+TESTS += test-dup-safer
+check_PROGRAMS += test-dup-safer
+EXTRA_DIST += test-dup-safer.c macros.h
+
+## end   gnulib module unistd-safer-tests
+
+## begin gnulib module unistd-tests
+
+TESTS += test-unistd
+check_PROGRAMS += test-unistd
+EXTRA_DIST += test-unistd.c
+
+## end   gnulib module unistd-tests
+
+## begin gnulib module uniwidth/width-tests
+
+TESTS += test-uc_width uniwidth/test-uc_width2.sh
+check_PROGRAMS += test-uc_width test-uc_width2
+test_uc_width_SOURCES = uniwidth/test-uc_width.c
+test_uc_width2_SOURCES = uniwidth/test-uc_width2.c
+
+EXTRA_DIST += uniwidth/test-uc_width.c uniwidth/test-uc_width2.c uniwidth/test-uc_width2.sh macros.h
+
+## end   gnulib module uniwidth/width-tests
+
+## begin gnulib module unsetenv-tests
+
+TESTS += test-unsetenv
+check_PROGRAMS += test-unsetenv
+EXTRA_DIST += test-unsetenv.c signature.h macros.h
+
+## end   gnulib module unsetenv-tests
+
+## begin gnulib module update-copyright-tests
+
+TESTS += test-update-copyright.sh
+TESTS_ENVIRONMENT += PATH='$(abs_aux_dir)'$(PATH_SEPARATOR)"$$PATH"
+EXTRA_DIST += test-update-copyright.sh
+
+## end   gnulib module update-copyright-tests
+
+## begin gnulib module vasnprintf-posix-tests
+
+TESTS += test-vasnprintf-posix test-vasnprintf-posix2.sh
+TESTS_ENVIRONMENT += LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@'
+check_PROGRAMS += test-vasnprintf-posix test-vasnprintf-posix2
+EXTRA_DIST += test-vasnprintf-posix.c test-vasnprintf-posix2.sh test-vasnprintf-posix2.c nan.h macros.h
+
+## end   gnulib module vasnprintf-posix-tests
+
+## begin gnulib module vasnprintf-tests
+
+TESTS += test-vasnprintf
+check_PROGRAMS += test-vasnprintf
+
+EXTRA_DIST += test-vasnprintf.c macros.h
+
+## end   gnulib module vasnprintf-tests
+
+## begin gnulib module vasprintf-posix-tests
+
+TESTS += test-vasprintf-posix
+check_PROGRAMS += test-vasprintf-posix
+
+EXTRA_DIST += test-vasprintf-posix.c nan.h macros.h
+
+## end   gnulib module vasprintf-posix-tests
+
+## begin gnulib module vasprintf-tests
+
+TESTS += test-vasprintf
+check_PROGRAMS += test-vasprintf
+
+EXTRA_DIST += test-vasprintf.c signature.h macros.h
+
+## end   gnulib module vasprintf-tests
+
+## begin gnulib module vc-list-files-tests
+
+TESTS += test-vc-list-files-git.sh
+TESTS += test-vc-list-files-cvs.sh
+TESTS_ENVIRONMENT += PATH='$(abs_aux_dir)'$(PATH_SEPARATOR)"$$PATH"
+EXTRA_DIST += test-vc-list-files-git.sh test-vc-list-files-cvs.sh
+
+## end   gnulib module vc-list-files-tests
+
+## begin gnulib module vfprintf-posix-tests
+
+TESTS += test-vfprintf-posix.sh
+check_PROGRAMS += test-vfprintf-posix
+EXTRA_DIST += test-vfprintf-posix.sh test-vfprintf-posix.c test-fprintf-posix.h test-printf-posix.output signature.h macros.h
+
+## end   gnulib module vfprintf-posix-tests
+
+## begin gnulib module vprintf-posix-tests
+
+TESTS += test-vprintf-posix.sh
+check_PROGRAMS += test-vprintf-posix
+EXTRA_DIST += test-vprintf-posix.sh test-vprintf-posix.c test-printf-posix.h test-printf-posix.output signature.h macros.h
+
+## end   gnulib module vprintf-posix-tests
+
+## begin gnulib module warn-on-use
+
+BUILT_SOURCES += warn-on-use.h
+# The warn-on-use.h that gets inserted into generated .h files is the same as
+# build-aux/warn-on-use.h, except that it has the copyright header cut off.
+warn-on-use.h: $(top_srcdir)/build-aux/warn-on-use.h
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	sed -n -e '/^.ifndef/,$$p' \
+	  < $(top_srcdir)/build-aux/warn-on-use.h \
+	  > $@-t && \
+	mv $@-t $@
+MOSTLYCLEANFILES += warn-on-use.h warn-on-use.h-t
+
+WARN_ON_USE_H=warn-on-use.h
+
+EXTRA_DIST += $(top_srcdir)/build-aux/warn-on-use.h
+
+## end   gnulib module warn-on-use
+
+## begin gnulib module wchar-tests
+
+TESTS += test-wchar
+check_PROGRAMS += test-wchar
+EXTRA_DIST += test-wchar.c
+
+## end   gnulib module wchar-tests
+
+## begin gnulib module wcrtomb-tests
+
+TESTS += test-wcrtomb.sh
+TESTS_ENVIRONMENT += \
+  LOCALE_FR='@LOCALE_FR@' \
+  LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+  LOCALE_JA='@LOCALE_JA@' \
+  LOCALE_ZH_CN='@LOCALE_ZH_CN@'
+check_PROGRAMS += test-wcrtomb
+
+EXTRA_DIST += test-wcrtomb.sh test-wcrtomb.c signature.h macros.h
+
+## end   gnulib module wcrtomb-tests
+
+## begin gnulib module wctob
+
+
+EXTRA_DIST += wctob.c
+
+EXTRA_libtests_a_SOURCES += wctob.c
+
+## end   gnulib module wctob
+
+## begin gnulib module wctype-tests
+
+TESTS += test-wctype
+check_PROGRAMS += test-wctype
+EXTRA_DIST += test-wctype.c macros.h
+
+## end   gnulib module wctype-tests
+
+## begin gnulib module wcwidth-tests
+
+TESTS += test-wcwidth
+check_PROGRAMS += test-wcwidth
+
+EXTRA_DIST += test-wcwidth.c signature.h macros.h
+
+## end   gnulib module wcwidth-tests
+
+## begin gnulib module xalloc-die-tests
+
+TESTS += test-xalloc-die.sh
+check_PROGRAMS += test-xalloc-die
+test_xalloc_die_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-xalloc-die.c test-xalloc-die.sh init.sh
+
+## end   gnulib module xalloc-die-tests
+
+## begin gnulib module xmemdup0-tests
+
+TESTS += test-xmemdup0
+check_PROGRAMS += test-xmemdup0
+test_xmemdup0_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-xmemdup0.c macros.h
+
+## end   gnulib module xmemdup0-tests
+
+## begin gnulib module xprintf-posix-tests
+
+TESTS += test-xprintf-posix.sh
+check_PROGRAMS += test-xfprintf-posix test-xprintf-posix
+test_xfprintf_posix_LDADD = $(LDADD) @LIBINTL@
+test_xprintf_posix_LDADD = $(LDADD) @LIBINTL@
+EXTRA_DIST += test-xprintf-posix.sh test-xfprintf-posix.c test-xprintf-posix.c test-fprintf-posix.h test-printf-posix.h test-printf-posix.output macros.h
+
+## end   gnulib module xprintf-posix-tests
+
+## begin gnulib module xvasprintf-tests
+
+TESTS += test-xvasprintf
+check_PROGRAMS += test-xvasprintf
+test_xvasprintf_LDADD = $(LDADD) @LIBINTL@
+
+EXTRA_DIST += test-xvasprintf.c macros.h
+
+## end   gnulib module xvasprintf-tests
+
+# Clean up after Solaris cc.
+clean-local:
+	rm -rf SunWS_cache
+
+mostlyclean-local: mostlyclean-generic
+	@for dir in '' $(MOSTLYCLEANDIRS); do \
+	  if test -n "$$dir" && test -d $$dir; then \
+	    echo "rmdir $$dir"; rmdir $$dir; \
+	  fi; \
+	done; \
+	:
diff --git a/tests/gnu/Makefile.in b/tests/gnu/Makefile.in
new file mode 100644
index 00000000..046750e9
--- /dev/null
+++ b/tests/gnu/Makefile.in
@@ -0,0 +1,3470 @@
+# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
+# Inc.
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# Copyright (C) 2002-2010 Free Software Foundation, Inc.
+#
+# This file is free software, distributed under the terms of the GNU
+# General Public License.  As a special exception to the GNU General
+# Public License, this file may be distributed as part of a program
+# that contains a configuration script generated by Autoconf, under
+# the same distribution terms as the rest of that program.
+#
+# Generated by gnulib-tool.
+
+
+
+VPATH = @srcdir@
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+TESTS = test-alloca-opt$(EXEEXT) test-array_list$(EXEEXT) \
+	test-array_oset$(EXEEXT) test-avltree_oset$(EXEEXT) \
+	test-binary-io.sh test-bitrotate$(EXEEXT) test-btowc1.sh \
+	test-btowc2.sh test-c-ctype$(EXEEXT) test-c-strcase.sh \
+	test-canonicalize-lgpl$(EXEEXT) test-cloexec$(EXEEXT) \
+	test-closein.sh test-dirname$(EXEEXT) test-dup2$(EXEEXT) \
+	test-environ$(EXEEXT) test-errno$(EXEEXT) \
+	test-fcntl-h$(EXEEXT) test-fcntl$(EXEEXT) test-fflush$(EXEEXT) \
+	test-fflush2.sh test-filenamecat$(EXEEXT) \
+	test-fopen-safer$(EXEEXT) test-fopen$(EXEEXT) test-fpending.sh \
+	test-fpurge$(EXEEXT) test-freadahead.sh test-freading$(EXEEXT) \
+	test-freadptr.sh test-freadptr2.sh test-freadseek.sh \
+	test-frexp-nolibm$(EXEEXT) test-frexpl-nolibm$(EXEEXT) \
+	test-fseeko.sh test-fseeko2.sh test-fseterr$(EXEEXT) \
+	test-ftello.sh test-ftello2.sh test-getdtablesize$(EXEEXT) \
+	test-gettimeofday$(EXEEXT) test-iconv$(EXEEXT) \
+	test-inttypes$(EXEEXT) test-isnand-nolibm$(EXEEXT) \
+	test-isnanf-nolibm$(EXEEXT) test-isnanl-nolibm$(EXEEXT) \
+	test-langinfo$(EXEEXT) test-link$(EXEEXT) \
+	test-linkedhash_list$(EXEEXT) test-lseek.sh \
+	test-lstat$(EXEEXT) test-malloca$(EXEEXT) test-math$(EXEEXT) \
+	test-mbrtowc1.sh test-mbrtowc2.sh test-mbrtowc3.sh \
+	test-mbrtowc4.sh test-mbsinit.sh test-mbsstr1$(EXEEXT) \
+	test-mbsstr2.sh test-mbsstr3.sh test-memchr$(EXEEXT) \
+	test-memchr2$(EXEEXT) test-memmem$(EXEEXT) test-nl_langinfo.sh \
+	test-obstack-printf$(EXEEXT) test-open$(EXEEXT) test-pipe.sh \
+	test-pipe2$(EXEEXT) $(am__EXEEXT_1) test-printf-frexp$(EXEEXT) \
+	test-printf-frexpl$(EXEEXT) test-quotearg.sh \
+	test-rawmemchr$(EXEEXT) test-readlink$(EXEEXT) \
+	test-rename$(EXEEXT) test-rmdir$(EXEEXT) test-sched$(EXEEXT) \
+	test-setenv$(EXEEXT) test-sigaction$(EXEEXT) \
+	test-signal$(EXEEXT) test-signbit$(EXEEXT) \
+	test-snprintf-posix$(EXEEXT) test-snprintf$(EXEEXT) \
+	test-snprintf$(EXEEXT) test-spawn$(EXEEXT) \
+	test-sprintf-posix$(EXEEXT) test-stat$(EXEEXT) \
+	test-stdbool$(EXEEXT) test-stddef$(EXEEXT) \
+	test-stdint$(EXEEXT) test-stdio$(EXEEXT) test-stdlib$(EXEEXT) \
+	test-strchrnul$(EXEEXT) test-strerror$(EXEEXT) \
+	test-striconv$(EXEEXT) test-string$(EXEEXT) \
+	test-strtod$(EXEEXT) test-symlink$(EXEEXT) \
+	test-sys_stat$(EXEEXT) test-sys_time$(EXEEXT) \
+	test-sys_wait$(EXEEXT) test-time$(EXEEXT) \
+	test-dup-safer$(EXEEXT) test-unistd$(EXEEXT) \
+	test-uc_width$(EXEEXT) uniwidth/test-uc_width2.sh \
+	test-unsetenv$(EXEEXT) test-update-copyright.sh \
+	test-vasnprintf-posix$(EXEEXT) test-vasnprintf-posix2.sh \
+	test-vasnprintf$(EXEEXT) test-vasprintf-posix$(EXEEXT) \
+	test-vasprintf$(EXEEXT) test-vc-list-files-git.sh \
+	test-vc-list-files-cvs.sh test-vfprintf-posix.sh \
+	test-vprintf-posix.sh test-wchar$(EXEEXT) test-wcrtomb.sh \
+	test-wctype$(EXEEXT) test-wcwidth$(EXEEXT) test-xalloc-die.sh \
+	test-xmemdup0$(EXEEXT) test-xprintf-posix.sh \
+	test-xvasprintf$(EXEEXT)
+XFAIL_TESTS =
+noinst_PROGRAMS =
+check_PROGRAMS = test-alloca-opt$(EXEEXT) test-array_list$(EXEEXT) \
+	test-array_oset$(EXEEXT) test-avltree_oset$(EXEEXT) \
+	test-binary-io$(EXEEXT) test-bitrotate$(EXEEXT) \
+	test-btowc$(EXEEXT) test-c-ctype$(EXEEXT) \
+	test-c-strcasecmp$(EXEEXT) test-c-strncasecmp$(EXEEXT) \
+	test-canonicalize-lgpl$(EXEEXT) test-cloexec$(EXEEXT) \
+	test-closein$(EXEEXT) test-dirname$(EXEEXT) test-dup2$(EXEEXT) \
+	test-environ$(EXEEXT) test-errno$(EXEEXT) \
+	test-fcntl-h$(EXEEXT) test-fcntl$(EXEEXT) test-fflush$(EXEEXT) \
+	test-fflush2$(EXEEXT) test-filenamecat$(EXEEXT) \
+	test-fopen-safer$(EXEEXT) test-fopen$(EXEEXT) \
+	test-fpending$(EXEEXT) test-fpurge$(EXEEXT) \
+	test-freadahead$(EXEEXT) test-freading$(EXEEXT) \
+	test-freadptr$(EXEEXT) test-freadptr2$(EXEEXT) \
+	test-freadseek$(EXEEXT) test-frexp-nolibm$(EXEEXT) \
+	test-frexpl-nolibm$(EXEEXT) test-fseeko$(EXEEXT) \
+	test-fseterr$(EXEEXT) test-ftello$(EXEEXT) \
+	test-getdtablesize$(EXEEXT) test-gettimeofday$(EXEEXT) \
+	test-iconv$(EXEEXT) test-inttypes$(EXEEXT) \
+	test-isnand-nolibm$(EXEEXT) test-isnanf-nolibm$(EXEEXT) \
+	test-isnanl-nolibm$(EXEEXT) test-langinfo$(EXEEXT) \
+	test-link$(EXEEXT) test-linkedhash_list$(EXEEXT) \
+	test-lseek$(EXEEXT) test-lstat$(EXEEXT) test-malloca$(EXEEXT) \
+	test-math$(EXEEXT) test-mbrtowc$(EXEEXT) test-mbsinit$(EXEEXT) \
+	test-mbsstr1$(EXEEXT) test-mbsstr2$(EXEEXT) \
+	test-mbsstr3$(EXEEXT) test-memchr$(EXEEXT) \
+	test-memchr2$(EXEEXT) test-memmem$(EXEEXT) \
+	test-nl_langinfo$(EXEEXT) test-obstack-printf$(EXEEXT) \
+	test-open$(EXEEXT) test-pipe$(EXEEXT) test-pipe2$(EXEEXT) \
+	$(am__EXEEXT_1) test-printf-frexp$(EXEEXT) \
+	test-printf-frexpl$(EXEEXT) test-quotearg$(EXEEXT) \
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+	$(am__DEPENDENCIES_1)
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+	libtests.a $(am__DEPENDENCIES_1)
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+test_unistd_DEPENDENCIES = libtests.a ../../gnu/libgnu.la libtests.a \
+	$(am__DEPENDENCIES_1)
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+test_unsetenv_DEPENDENCIES = libtests.a ../../gnu/libgnu.la libtests.a \
+	$(am__DEPENDENCIES_1)
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+test_vasnprintf_DEPENDENCIES = libtests.a ../../gnu/libgnu.la \
+	libtests.a $(am__DEPENDENCIES_1)
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+test_vasnprintf_posix_DEPENDENCIES = libtests.a ../../gnu/libgnu.la \
+	libtests.a $(am__DEPENDENCIES_1)
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+	libtests.a $(am__DEPENDENCIES_1)
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+	libtests.a $(am__DEPENDENCIES_1)
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+	libtests.a $(am__DEPENDENCIES_1)
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+	$(am__DEPENDENCIES_1)
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+	$(am__DEPENDENCIES_1)
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+am__depfiles_maybe = depfiles
+am__mv = mv -f
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+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
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+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
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+	test-avltree_oset.c test-binary-io.c test-bitrotate.c \
+	test-btowc.c test-c-ctype.c test-c-strcasecmp.c \
+	test-c-strncasecmp.c test-canonicalize-lgpl.c test-cloexec.c \
+	test-closein.c test-dirname.c test-dup-safer.c test-dup2.c \
+	test-environ.c test-errno.c test-fcntl.c test-fcntl-h.c \
+	test-fflush.c test-fflush2.c test-filenamecat.c test-fopen.c \
+	test-fopen-safer.c test-fpending.c test-fpurge.c \
+	test-freadahead.c test-freading.c test-freadptr.c \
+	test-freadptr2.c test-freadseek.c $(test_frexp_nolibm_SOURCES) \
+	$(test_frexpl_nolibm_SOURCES) test-fseeko.c test-fseterr.c \
+	test-ftello.c test-getdtablesize.c test-gettimeofday.c \
+	test-iconv.c test-inttypes.c test-isnand-nolibm.c \
+	test-isnanf-nolibm.c test-isnanl-nolibm.c test-langinfo.c \
+	test-link.c test-linkedhash_list.c test-lseek.c test-lstat.c \
+	test-malloca.c test-math.c test-mbrtowc.c test-mbsinit.c \
+	test-mbsstr1.c test-mbsstr2.c test-mbsstr3.c test-memchr.c \
+	test-memchr2.c test-memmem.c test-nl_langinfo.c \
+	test-obstack-printf.c test-open.c test-pipe.c test-pipe2.c \
+	test-posix_spawn1.c test-posix_spawn2.c test-printf-frexp.c \
+	test-printf-frexpl.c test-quotearg.c test-rawmemchr.c \
+	test-readlink.c test-rename.c test-rmdir.c test-sched.c \
+	test-setenv.c test-sigaction.c test-signal.c test-signbit.c \
+	test-snprintf.c test-snprintf-posix.c test-spawn.c \
+	test-sprintf-posix.c test-stat.c test-stdbool.c test-stddef.c \
+	test-stdint.c test-stdio.c test-stdlib.c test-strchrnul.c \
+	test-strerror.c test-striconv.c test-string.c test-strtod.c \
+	test-symlink.c test-sys_stat.c test-sys_time.c test-sys_wait.c \
+	test-time.c $(test_uc_width_SOURCES) $(test_uc_width2_SOURCES) \
+	test-unistd.c test-unsetenv.c test-vasnprintf.c \
+	test-vasnprintf-posix.c test-vasnprintf-posix2.c \
+	test-vasprintf.c test-vasprintf-posix.c test-vfprintf-posix.c \
+	test-vprintf-posix.c test-wchar.c test-wcrtomb.c test-wctype.c \
+	test-wcwidth.c test-xalloc-die.c test-xfprintf-posix.c \
+	test-xmemdup0.c test-xprintf-posix.c test-xvasprintf.c
+DIST_SOURCES = $(libtests_a_SOURCES) $(EXTRA_libtests_a_SOURCES) \
+	test-alloca-opt.c test-array_list.c test-array_oset.c \
+	test-avltree_oset.c test-binary-io.c test-bitrotate.c \
+	test-btowc.c test-c-ctype.c test-c-strcasecmp.c \
+	test-c-strncasecmp.c test-canonicalize-lgpl.c test-cloexec.c \
+	test-closein.c test-dirname.c test-dup-safer.c test-dup2.c \
+	test-environ.c test-errno.c test-fcntl.c test-fcntl-h.c \
+	test-fflush.c test-fflush2.c test-filenamecat.c test-fopen.c \
+	test-fopen-safer.c test-fpending.c test-fpurge.c \
+	test-freadahead.c test-freading.c test-freadptr.c \
+	test-freadptr2.c test-freadseek.c $(test_frexp_nolibm_SOURCES) \
+	$(test_frexpl_nolibm_SOURCES) test-fseeko.c test-fseterr.c \
+	test-ftello.c test-getdtablesize.c test-gettimeofday.c \
+	test-iconv.c test-inttypes.c test-isnand-nolibm.c \
+	test-isnanf-nolibm.c test-isnanl-nolibm.c test-langinfo.c \
+	test-link.c test-linkedhash_list.c test-lseek.c test-lstat.c \
+	test-malloca.c test-math.c test-mbrtowc.c test-mbsinit.c \
+	test-mbsstr1.c test-mbsstr2.c test-mbsstr3.c test-memchr.c \
+	test-memchr2.c test-memmem.c test-nl_langinfo.c \
+	test-obstack-printf.c test-open.c test-pipe.c test-pipe2.c \
+	test-posix_spawn1.c test-posix_spawn2.c test-printf-frexp.c \
+	test-printf-frexpl.c test-quotearg.c test-rawmemchr.c \
+	test-readlink.c test-rename.c test-rmdir.c test-sched.c \
+	test-setenv.c test-sigaction.c test-signal.c test-signbit.c \
+	test-snprintf.c test-snprintf-posix.c test-spawn.c \
+	test-sprintf-posix.c test-stat.c test-stdbool.c test-stddef.c \
+	test-stdint.c test-stdio.c test-stdlib.c test-strchrnul.c \
+	test-strerror.c test-striconv.c test-string.c test-strtod.c \
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+	test-vasprintf.c test-vasprintf-posix.c test-vfprintf-posix.c \
+	test-vprintf-posix.c test-wchar.c test-wcrtomb.c test-wctype.c \
+	test-wcwidth.c test-xalloc-die.c test-xfprintf-posix.c \
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+	install-html-recursive install-info-recursive \
+	install-pdf-recursive install-ps-recursive install-recursive \
+	installcheck-recursive installdirs-recursive pdf-recursive \
+	ps-recursive uninstall-recursive
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+	$(RECURSIVE_CLEAN_TARGETS:-recursive=) tags TAGS ctags CTAGS \
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+ETAGS = etags
+CTAGS = ctags
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+  for (i = 1; i <= n; ++i) if (lines[i]) print lines[i];\
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+# Solaris 10 'make', and several other traditional 'make' implementations,
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+GNULIB_EUIDACCESS = @GNULIB_EUIDACCESS@
+GNULIB_EXPL = @GNULIB_EXPL@
+GNULIB_FACCESSAT = @GNULIB_FACCESSAT@
+GNULIB_FCHDIR = @GNULIB_FCHDIR@
+GNULIB_FCHMODAT = @GNULIB_FCHMODAT@
+GNULIB_FCHOWNAT = @GNULIB_FCHOWNAT@
+GNULIB_FCLOSE = @GNULIB_FCLOSE@
+GNULIB_FCNTL = @GNULIB_FCNTL@
+GNULIB_FFLUSH = @GNULIB_FFLUSH@
+GNULIB_FLOORF = @GNULIB_FLOORF@
+GNULIB_FLOORL = @GNULIB_FLOORL@
+GNULIB_FOPEN = @GNULIB_FOPEN@
+GNULIB_FPRINTF = @GNULIB_FPRINTF@
+GNULIB_FPRINTF_POSIX = @GNULIB_FPRINTF_POSIX@
+GNULIB_FPURGE = @GNULIB_FPURGE@
+GNULIB_FPUTC = @GNULIB_FPUTC@
+GNULIB_FPUTS = @GNULIB_FPUTS@
+GNULIB_FREOPEN = @GNULIB_FREOPEN@
+GNULIB_FREXP = @GNULIB_FREXP@
+GNULIB_FREXPL = @GNULIB_FREXPL@
+GNULIB_FSEEK = @GNULIB_FSEEK@
+GNULIB_FSEEKO = @GNULIB_FSEEKO@
+GNULIB_FSTATAT = @GNULIB_FSTATAT@
+GNULIB_FSYNC = @GNULIB_FSYNC@
+GNULIB_FTELL = @GNULIB_FTELL@
+GNULIB_FTELLO = @GNULIB_FTELLO@
+GNULIB_FTRUNCATE = @GNULIB_FTRUNCATE@
+GNULIB_FUTIMENS = @GNULIB_FUTIMENS@
+GNULIB_FWRITE = @GNULIB_FWRITE@
+GNULIB_GETCWD = @GNULIB_GETCWD@
+GNULIB_GETDELIM = @GNULIB_GETDELIM@
+GNULIB_GETDOMAINNAME = @GNULIB_GETDOMAINNAME@
+GNULIB_GETDTABLESIZE = @GNULIB_GETDTABLESIZE@
+GNULIB_GETGROUPS = @GNULIB_GETGROUPS@
+GNULIB_GETHOSTNAME = @GNULIB_GETHOSTNAME@
+GNULIB_GETLINE = @GNULIB_GETLINE@
+GNULIB_GETLOADAVG = @GNULIB_GETLOADAVG@
+GNULIB_GETLOGIN = @GNULIB_GETLOGIN@
+GNULIB_GETLOGIN_R = @GNULIB_GETLOGIN_R@
+GNULIB_GETPAGESIZE = @GNULIB_GETPAGESIZE@
+GNULIB_GETSUBOPT = @GNULIB_GETSUBOPT@
+GNULIB_GETTIMEOFDAY = @GNULIB_GETTIMEOFDAY@
+GNULIB_GETUSERSHELL = @GNULIB_GETUSERSHELL@
+GNULIB_IMAXABS = @GNULIB_IMAXABS@
+GNULIB_IMAXDIV = @GNULIB_IMAXDIV@
+GNULIB_ISFINITE = @GNULIB_ISFINITE@
+GNULIB_ISINF = @GNULIB_ISINF@
+GNULIB_ISNAN = @GNULIB_ISNAN@
+GNULIB_ISNAND = @GNULIB_ISNAND@
+GNULIB_ISNANF = @GNULIB_ISNANF@
+GNULIB_ISNANL = @GNULIB_ISNANL@
+GNULIB_LCHMOD = @GNULIB_LCHMOD@
+GNULIB_LCHOWN = @GNULIB_LCHOWN@
+GNULIB_LDEXPL = @GNULIB_LDEXPL@
+GNULIB_LINK = @GNULIB_LINK@
+GNULIB_LINKAT = @GNULIB_LINKAT@
+GNULIB_LOGL = @GNULIB_LOGL@
+GNULIB_LSEEK = @GNULIB_LSEEK@
+GNULIB_LSTAT = @GNULIB_LSTAT@
+GNULIB_MALLOC_POSIX = @GNULIB_MALLOC_POSIX@
+GNULIB_MBRLEN = @GNULIB_MBRLEN@
+GNULIB_MBRTOWC = @GNULIB_MBRTOWC@
+GNULIB_MBSCASECMP = @GNULIB_MBSCASECMP@
+GNULIB_MBSCASESTR = @GNULIB_MBSCASESTR@
+GNULIB_MBSCHR = @GNULIB_MBSCHR@
+GNULIB_MBSCSPN = @GNULIB_MBSCSPN@
+GNULIB_MBSINIT = @GNULIB_MBSINIT@
+GNULIB_MBSLEN = @GNULIB_MBSLEN@
+GNULIB_MBSNCASECMP = @GNULIB_MBSNCASECMP@
+GNULIB_MBSNLEN = @GNULIB_MBSNLEN@
+GNULIB_MBSNRTOWCS = @GNULIB_MBSNRTOWCS@
+GNULIB_MBSPBRK = @GNULIB_MBSPBRK@
+GNULIB_MBSPCASECMP = @GNULIB_MBSPCASECMP@
+GNULIB_MBSRCHR = @GNULIB_MBSRCHR@
+GNULIB_MBSRTOWCS = @GNULIB_MBSRTOWCS@
+GNULIB_MBSSEP = @GNULIB_MBSSEP@
+GNULIB_MBSSPN = @GNULIB_MBSSPN@
+GNULIB_MBSSTR = @GNULIB_MBSSTR@
+GNULIB_MBSTOK_R = @GNULIB_MBSTOK_R@
+GNULIB_MEMCHR = @GNULIB_MEMCHR@
+GNULIB_MEMMEM = @GNULIB_MEMMEM@
+GNULIB_MEMPCPY = @GNULIB_MEMPCPY@
+GNULIB_MEMRCHR = @GNULIB_MEMRCHR@
+GNULIB_MKDIRAT = @GNULIB_MKDIRAT@
+GNULIB_MKDTEMP = @GNULIB_MKDTEMP@
+GNULIB_MKFIFO = @GNULIB_MKFIFO@
+GNULIB_MKFIFOAT = @GNULIB_MKFIFOAT@
+GNULIB_MKNOD = @GNULIB_MKNOD@
+GNULIB_MKNODAT = @GNULIB_MKNODAT@
+GNULIB_MKOSTEMP = @GNULIB_MKOSTEMP@
+GNULIB_MKOSTEMPS = @GNULIB_MKOSTEMPS@
+GNULIB_MKSTEMP = @GNULIB_MKSTEMP@
+GNULIB_MKSTEMPS = @GNULIB_MKSTEMPS@
+GNULIB_NL_LANGINFO = @GNULIB_NL_LANGINFO@
+GNULIB_OBSTACK_PRINTF = @GNULIB_OBSTACK_PRINTF@
+GNULIB_OBSTACK_PRINTF_POSIX = @GNULIB_OBSTACK_PRINTF_POSIX@
+GNULIB_OPEN = @GNULIB_OPEN@
+GNULIB_OPENAT = @GNULIB_OPENAT@
+GNULIB_PERROR = @GNULIB_PERROR@
+GNULIB_PIPE2 = @GNULIB_PIPE2@
+GNULIB_POPEN = @GNULIB_POPEN@
+GNULIB_POSIX_SPAWN = @GNULIB_POSIX_SPAWN@
+GNULIB_POSIX_SPAWNATTR_DESTROY = @GNULIB_POSIX_SPAWNATTR_DESTROY@
+GNULIB_POSIX_SPAWNATTR_GETFLAGS = @GNULIB_POSIX_SPAWNATTR_GETFLAGS@
+GNULIB_POSIX_SPAWNATTR_GETPGROUP = @GNULIB_POSIX_SPAWNATTR_GETPGROUP@
+GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM = @GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM@
+GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY = @GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY@
+GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT = @GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT@
+GNULIB_POSIX_SPAWNATTR_GETSIGMASK = @GNULIB_POSIX_SPAWNATTR_GETSIGMASK@
+GNULIB_POSIX_SPAWNATTR_INIT = @GNULIB_POSIX_SPAWNATTR_INIT@
+GNULIB_POSIX_SPAWNATTR_SETFLAGS = @GNULIB_POSIX_SPAWNATTR_SETFLAGS@
+GNULIB_POSIX_SPAWNATTR_SETPGROUP = @GNULIB_POSIX_SPAWNATTR_SETPGROUP@
+GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM = @GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM@
+GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY = @GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY@
+GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT = @GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT@
+GNULIB_POSIX_SPAWNATTR_SETSIGMASK = @GNULIB_POSIX_SPAWNATTR_SETSIGMASK@
+GNULIB_POSIX_SPAWNP = @GNULIB_POSIX_SPAWNP@
+GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@
+GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2 = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@
+GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@
+GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY@
+GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT = @GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT@
+GNULIB_PREAD = @GNULIB_PREAD@
+GNULIB_PRINTF = @GNULIB_PRINTF@
+GNULIB_PRINTF_POSIX = @GNULIB_PRINTF_POSIX@
+GNULIB_PUTC = @GNULIB_PUTC@
+GNULIB_PUTCHAR = @GNULIB_PUTCHAR@
+GNULIB_PUTENV = @GNULIB_PUTENV@
+GNULIB_PUTS = @GNULIB_PUTS@
+GNULIB_RANDOM_R = @GNULIB_RANDOM_R@
+GNULIB_RAWMEMCHR = @GNULIB_RAWMEMCHR@
+GNULIB_READLINK = @GNULIB_READLINK@
+GNULIB_READLINKAT = @GNULIB_READLINKAT@
+GNULIB_REALLOC_POSIX = @GNULIB_REALLOC_POSIX@
+GNULIB_REALPATH = @GNULIB_REALPATH@
+GNULIB_REMOVE = @GNULIB_REMOVE@
+GNULIB_RENAME = @GNULIB_RENAME@
+GNULIB_RENAMEAT = @GNULIB_RENAMEAT@
+GNULIB_RMDIR = @GNULIB_RMDIR@
+GNULIB_ROUND = @GNULIB_ROUND@
+GNULIB_ROUNDF = @GNULIB_ROUNDF@
+GNULIB_ROUNDL = @GNULIB_ROUNDL@
+GNULIB_RPMATCH = @GNULIB_RPMATCH@
+GNULIB_SETENV = @GNULIB_SETENV@
+GNULIB_SIGACTION = @GNULIB_SIGACTION@
+GNULIB_SIGNAL_H_SIGPIPE = @GNULIB_SIGNAL_H_SIGPIPE@
+GNULIB_SIGNBIT = @GNULIB_SIGNBIT@
+GNULIB_SIGPROCMASK = @GNULIB_SIGPROCMASK@
+GNULIB_SINL = @GNULIB_SINL@
+GNULIB_SLEEP = @GNULIB_SLEEP@
+GNULIB_SNPRINTF = @GNULIB_SNPRINTF@
+GNULIB_SPRINTF_POSIX = @GNULIB_SPRINTF_POSIX@
+GNULIB_SQRTL = @GNULIB_SQRTL@
+GNULIB_STAT = @GNULIB_STAT@
+GNULIB_STDIO_H_SIGPIPE = @GNULIB_STDIO_H_SIGPIPE@
+GNULIB_STPCPY = @GNULIB_STPCPY@
+GNULIB_STPNCPY = @GNULIB_STPNCPY@
+GNULIB_STRCASESTR = @GNULIB_STRCASESTR@
+GNULIB_STRCHRNUL = @GNULIB_STRCHRNUL@
+GNULIB_STRDUP = @GNULIB_STRDUP@
+GNULIB_STRERROR = @GNULIB_STRERROR@
+GNULIB_STRNDUP = @GNULIB_STRNDUP@
+GNULIB_STRNLEN = @GNULIB_STRNLEN@
+GNULIB_STRPBRK = @GNULIB_STRPBRK@
+GNULIB_STRSEP = @GNULIB_STRSEP@
+GNULIB_STRSIGNAL = @GNULIB_STRSIGNAL@
+GNULIB_STRSTR = @GNULIB_STRSTR@
+GNULIB_STRTOD = @GNULIB_STRTOD@
+GNULIB_STRTOIMAX = @GNULIB_STRTOIMAX@
+GNULIB_STRTOK_R = @GNULIB_STRTOK_R@
+GNULIB_STRTOLL = @GNULIB_STRTOLL@
+GNULIB_STRTOULL = @GNULIB_STRTOULL@
+GNULIB_STRTOUMAX = @GNULIB_STRTOUMAX@
+GNULIB_STRVERSCMP = @GNULIB_STRVERSCMP@
+GNULIB_SYMLINK = @GNULIB_SYMLINK@
+GNULIB_SYMLINKAT = @GNULIB_SYMLINKAT@
+GNULIB_TANL = @GNULIB_TANL@
+GNULIB_TRUNC = @GNULIB_TRUNC@
+GNULIB_TRUNCF = @GNULIB_TRUNCF@
+GNULIB_TRUNCL = @GNULIB_TRUNCL@
+GNULIB_UNISTD_H_GETOPT = @GNULIB_UNISTD_H_GETOPT@
+GNULIB_UNISTD_H_SIGPIPE = @GNULIB_UNISTD_H_SIGPIPE@
+GNULIB_UNLINK = @GNULIB_UNLINK@
+GNULIB_UNLINKAT = @GNULIB_UNLINKAT@
+GNULIB_UNSETENV = @GNULIB_UNSETENV@
+GNULIB_USLEEP = @GNULIB_USLEEP@
+GNULIB_UTIMENSAT = @GNULIB_UTIMENSAT@
+GNULIB_VASPRINTF = @GNULIB_VASPRINTF@
+GNULIB_VDPRINTF = @GNULIB_VDPRINTF@
+GNULIB_VFPRINTF = @GNULIB_VFPRINTF@
+GNULIB_VFPRINTF_POSIX = @GNULIB_VFPRINTF_POSIX@
+GNULIB_VPRINTF = @GNULIB_VPRINTF@
+GNULIB_VPRINTF_POSIX = @GNULIB_VPRINTF_POSIX@
+GNULIB_VSNPRINTF = @GNULIB_VSNPRINTF@
+GNULIB_VSPRINTF_POSIX = @GNULIB_VSPRINTF_POSIX@
+GNULIB_WCRTOMB = @GNULIB_WCRTOMB@
+GNULIB_WCSNRTOMBS = @GNULIB_WCSNRTOMBS@
+GNULIB_WCSRTOMBS = @GNULIB_WCSRTOMBS@
+GNULIB_WCTOB = @GNULIB_WCTOB@
+GNULIB_WCWIDTH = @GNULIB_WCWIDTH@
+GNULIB_WRITE = @GNULIB_WRITE@
+GREP = @GREP@
+HAVE_ACOSL = @HAVE_ACOSL@
+HAVE_ASINL = @HAVE_ASINL@
+HAVE_ATANL = @HAVE_ATANL@
+HAVE_ATOLL = @HAVE_ATOLL@
+HAVE_BTOWC = @HAVE_BTOWC@
+HAVE_CALLOC_POSIX = @HAVE_CALLOC_POSIX@
+HAVE_CANONICALIZE_FILE_NAME = @HAVE_CANONICALIZE_FILE_NAME@
+HAVE_CHOWN = @HAVE_CHOWN@
+HAVE_COSL = @HAVE_COSL@
+HAVE_DECL_ACOSL = @HAVE_DECL_ACOSL@
+HAVE_DECL_ASINL = @HAVE_DECL_ASINL@
+HAVE_DECL_ATANL = @HAVE_DECL_ATANL@
+HAVE_DECL_COSL = @HAVE_DECL_COSL@
+HAVE_DECL_ENVIRON = @HAVE_DECL_ENVIRON@
+HAVE_DECL_EXPL = @HAVE_DECL_EXPL@
+HAVE_DECL_FPURGE = @HAVE_DECL_FPURGE@
+HAVE_DECL_FREXPL = @HAVE_DECL_FREXPL@
+HAVE_DECL_GETDELIM = @HAVE_DECL_GETDELIM@
+HAVE_DECL_GETLINE = @HAVE_DECL_GETLINE@
+HAVE_DECL_GETLOADAVG = @HAVE_DECL_GETLOADAVG@
+HAVE_DECL_GETLOGIN_R = @HAVE_DECL_GETLOGIN_R@
+HAVE_DECL_IMAXABS = @HAVE_DECL_IMAXABS@
+HAVE_DECL_IMAXDIV = @HAVE_DECL_IMAXDIV@
+HAVE_DECL_LDEXPL = @HAVE_DECL_LDEXPL@
+HAVE_DECL_LOGL = @HAVE_DECL_LOGL@
+HAVE_DECL_MEMMEM = @HAVE_DECL_MEMMEM@
+HAVE_DECL_MEMRCHR = @HAVE_DECL_MEMRCHR@
+HAVE_DECL_OBSTACK_PRINTF = @HAVE_DECL_OBSTACK_PRINTF@
+HAVE_DECL_SINL = @HAVE_DECL_SINL@
+HAVE_DECL_SNPRINTF = @HAVE_DECL_SNPRINTF@
+HAVE_DECL_SQRTL = @HAVE_DECL_SQRTL@
+HAVE_DECL_STRDUP = @HAVE_DECL_STRDUP@
+HAVE_DECL_STRERROR = @HAVE_DECL_STRERROR@
+HAVE_DECL_STRNDUP = @HAVE_DECL_STRNDUP@
+HAVE_DECL_STRNLEN = @HAVE_DECL_STRNLEN@
+HAVE_DECL_STRSIGNAL = @HAVE_DECL_STRSIGNAL@
+HAVE_DECL_STRTOIMAX = @HAVE_DECL_STRTOIMAX@
+HAVE_DECL_STRTOK_R = @HAVE_DECL_STRTOK_R@
+HAVE_DECL_STRTOUMAX = @HAVE_DECL_STRTOUMAX@
+HAVE_DECL_TANL = @HAVE_DECL_TANL@
+HAVE_DECL_TRUNC = @HAVE_DECL_TRUNC@
+HAVE_DECL_TRUNCF = @HAVE_DECL_TRUNCF@
+HAVE_DECL_VSNPRINTF = @HAVE_DECL_VSNPRINTF@
+HAVE_DECL_WCTOB = @HAVE_DECL_WCTOB@
+HAVE_DECL_WCWIDTH = @HAVE_DECL_WCWIDTH@
+HAVE_DPRINTF = @HAVE_DPRINTF@
+HAVE_DUP2 = @HAVE_DUP2@
+HAVE_DUP3 = @HAVE_DUP3@
+HAVE_EUIDACCESS = @HAVE_EUIDACCESS@
+HAVE_EXPL = @HAVE_EXPL@
+HAVE_FACCESSAT = @HAVE_FACCESSAT@
+HAVE_FCHMODAT = @HAVE_FCHMODAT@
+HAVE_FCHOWNAT = @HAVE_FCHOWNAT@
+HAVE_FCNTL = @HAVE_FCNTL@
+HAVE_FSTATAT = @HAVE_FSTATAT@
+HAVE_FSYNC = @HAVE_FSYNC@
+HAVE_FTRUNCATE = @HAVE_FTRUNCATE@
+HAVE_FUTIMENS = @HAVE_FUTIMENS@
+HAVE_GETDOMAINNAME = @HAVE_GETDOMAINNAME@
+HAVE_GETDTABLESIZE = @HAVE_GETDTABLESIZE@
+HAVE_GETGROUPS = @HAVE_GETGROUPS@
+HAVE_GETHOSTNAME = @HAVE_GETHOSTNAME@
+HAVE_GETLOGIN = @HAVE_GETLOGIN@
+HAVE_GETOPT_H = @HAVE_GETOPT_H@
+HAVE_GETPAGESIZE = @HAVE_GETPAGESIZE@
+HAVE_GETSUBOPT = @HAVE_GETSUBOPT@
+HAVE_GETTIMEOFDAY = @HAVE_GETTIMEOFDAY@
+HAVE_GETUSERSHELL = @HAVE_GETUSERSHELL@
+HAVE_INTTYPES_H = @HAVE_INTTYPES_H@
+HAVE_ISNAND = @HAVE_ISNAND@
+HAVE_ISNANF = @HAVE_ISNANF@
+HAVE_ISNANL = @HAVE_ISNANL@
+HAVE_ISWCNTRL = @HAVE_ISWCNTRL@
+HAVE_LANGINFO_CODESET = @HAVE_LANGINFO_CODESET@
+HAVE_LANGINFO_ERA = @HAVE_LANGINFO_ERA@
+HAVE_LANGINFO_H = @HAVE_LANGINFO_H@
+HAVE_LCHMOD = @HAVE_LCHMOD@
+HAVE_LCHOWN = @HAVE_LCHOWN@
+HAVE_LINK = @HAVE_LINK@
+HAVE_LINKAT = @HAVE_LINKAT@
+HAVE_LOGL = @HAVE_LOGL@
+HAVE_LONG_LONG_INT = @HAVE_LONG_LONG_INT@
+HAVE_LSTAT = @HAVE_LSTAT@
+HAVE_MALLOC_POSIX = @HAVE_MALLOC_POSIX@
+HAVE_MBRLEN = @HAVE_MBRLEN@
+HAVE_MBRTOWC = @HAVE_MBRTOWC@
+HAVE_MBSINIT = @HAVE_MBSINIT@
+HAVE_MBSLEN = @HAVE_MBSLEN@
+HAVE_MBSNRTOWCS = @HAVE_MBSNRTOWCS@
+HAVE_MBSRTOWCS = @HAVE_MBSRTOWCS@
+HAVE_MEMPCPY = @HAVE_MEMPCPY@
+HAVE_MKDIRAT = @HAVE_MKDIRAT@
+HAVE_MKDTEMP = @HAVE_MKDTEMP@
+HAVE_MKFIFO = @HAVE_MKFIFO@
+HAVE_MKFIFOAT = @HAVE_MKFIFOAT@
+HAVE_MKNOD = @HAVE_MKNOD@
+HAVE_MKNODAT = @HAVE_MKNODAT@
+HAVE_MKOSTEMP = @HAVE_MKOSTEMP@
+HAVE_MKOSTEMPS = @HAVE_MKOSTEMPS@
+HAVE_MKSTEMPS = @HAVE_MKSTEMPS@
+HAVE_NL_LANGINFO = @HAVE_NL_LANGINFO@
+HAVE_OPENAT = @HAVE_OPENAT@
+HAVE_OS_H = @HAVE_OS_H@
+HAVE_PIPE2 = @HAVE_PIPE2@
+HAVE_POSIX_SIGNALBLOCKING = @HAVE_POSIX_SIGNALBLOCKING@
+HAVE_POSIX_SPAWN = @HAVE_POSIX_SPAWN@
+HAVE_POSIX_SPAWNATTR_T = @HAVE_POSIX_SPAWNATTR_T@
+HAVE_POSIX_SPAWN_FILE_ACTIONS_T = @HAVE_POSIX_SPAWN_FILE_ACTIONS_T@
+HAVE_PREAD = @HAVE_PREAD@
+HAVE_RANDOM_H = @HAVE_RANDOM_H@
+HAVE_RANDOM_R = @HAVE_RANDOM_R@
+HAVE_RAWMEMCHR = @HAVE_RAWMEMCHR@
+HAVE_READLINK = @HAVE_READLINK@
+HAVE_READLINKAT = @HAVE_READLINKAT@
+HAVE_REALLOC_POSIX = @HAVE_REALLOC_POSIX@
+HAVE_REALPATH = @HAVE_REALPATH@
+HAVE_RENAMEAT = @HAVE_RENAMEAT@
+HAVE_RPMATCH = @HAVE_RPMATCH@
+HAVE_SCHED_H = @HAVE_SCHED_H@
+HAVE_SETENV = @HAVE_SETENV@
+HAVE_SIGACTION = @HAVE_SIGACTION@
+HAVE_SIGINFO_T = @HAVE_SIGINFO_T@
+HAVE_SIGNED_SIG_ATOMIC_T = @HAVE_SIGNED_SIG_ATOMIC_T@
+HAVE_SIGNED_WCHAR_T = @HAVE_SIGNED_WCHAR_T@
+HAVE_SIGNED_WINT_T = @HAVE_SIGNED_WINT_T@
+HAVE_SIGSET_T = @HAVE_SIGSET_T@
+HAVE_SINL = @HAVE_SINL@
+HAVE_SLEEP = @HAVE_SLEEP@
+HAVE_SPAWN_H = @HAVE_SPAWN_H@
+HAVE_SQRTL = @HAVE_SQRTL@
+HAVE_STDINT_H = @HAVE_STDINT_H@
+HAVE_STPCPY = @HAVE_STPCPY@
+HAVE_STPNCPY = @HAVE_STPNCPY@
+HAVE_STRCASESTR = @HAVE_STRCASESTR@
+HAVE_STRCHRNUL = @HAVE_STRCHRNUL@
+HAVE_STRPBRK = @HAVE_STRPBRK@
+HAVE_STRSEP = @HAVE_STRSEP@
+HAVE_STRTOD = @HAVE_STRTOD@
+HAVE_STRTOLL = @HAVE_STRTOLL@
+HAVE_STRTOULL = @HAVE_STRTOULL@
+HAVE_STRUCT_RANDOM_DATA = @HAVE_STRUCT_RANDOM_DATA@
+HAVE_STRUCT_SCHED_PARAM = @HAVE_STRUCT_SCHED_PARAM@
+HAVE_STRUCT_SIGACTION_SA_SIGACTION = @HAVE_STRUCT_SIGACTION_SA_SIGACTION@
+HAVE_STRUCT_TIMEVAL = @HAVE_STRUCT_TIMEVAL@
+HAVE_STRVERSCMP = @HAVE_STRVERSCMP@
+HAVE_SYMLINK = @HAVE_SYMLINK@
+HAVE_SYMLINKAT = @HAVE_SYMLINKAT@
+HAVE_SYS_BITYPES_H = @HAVE_SYS_BITYPES_H@
+HAVE_SYS_INTTYPES_H = @HAVE_SYS_INTTYPES_H@
+HAVE_SYS_LOADAVG_H = @HAVE_SYS_LOADAVG_H@
+HAVE_SYS_PARAM_H = @HAVE_SYS_PARAM_H@
+HAVE_SYS_TIME_H = @HAVE_SYS_TIME_H@
+HAVE_SYS_TYPES_H = @HAVE_SYS_TYPES_H@
+HAVE_TANL = @HAVE_TANL@
+HAVE_TYPE_VOLATILE_SIG_ATOMIC_T = @HAVE_TYPE_VOLATILE_SIG_ATOMIC_T@
+HAVE_UNISTD_H = @HAVE_UNISTD_H@
+HAVE_UNLINKAT = @HAVE_UNLINKAT@
+HAVE_UNSETENV = @HAVE_UNSETENV@
+HAVE_UNSIGNED_LONG_LONG_INT = @HAVE_UNSIGNED_LONG_LONG_INT@
+HAVE_USLEEP = @HAVE_USLEEP@
+HAVE_UTIMENSAT = @HAVE_UTIMENSAT@
+HAVE_VASPRINTF = @HAVE_VASPRINTF@
+HAVE_VDPRINTF = @HAVE_VDPRINTF@
+HAVE_WCHAR_H = @HAVE_WCHAR_H@
+HAVE_WCHAR_T = @HAVE_WCHAR_T@
+HAVE_WCRTOMB = @HAVE_WCRTOMB@
+HAVE_WCSNRTOMBS = @HAVE_WCSNRTOMBS@
+HAVE_WCSRTOMBS = @HAVE_WCSRTOMBS@
+HAVE_WCTYPE_H = @HAVE_WCTYPE_H@
+HAVE_WINT_T = @HAVE_WINT_T@
+HAVE__BOOL = @HAVE__BOOL@
+ICONV_H = @ICONV_H@
+INCLTDL = @INCLTDL@
+INCLUDE_ERROR_H = @INCLUDE_ERROR_H@
+INCLUDE_NEXT = @INCLUDE_NEXT@
+INCLUDE_NEXT_AS_FIRST_DIRECTIVE = @INCLUDE_NEXT_AS_FIRST_DIRECTIVE@
+INCLUDE_OBSTACK_H = @INCLUDE_OBSTACK_H@
+INCLUDE_REGEX_H = @INCLUDE_REGEX_H@
+INCLUDE_STDBOOL_H = @INCLUDE_STDBOOL_H@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+INT32_MAX_LT_INTMAX_MAX = @INT32_MAX_LT_INTMAX_MAX@
+INT64_MAX_EQ_LONG_MAX = @INT64_MAX_EQ_LONG_MAX@
+INTLLIBS = @INTLLIBS@
+INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBADD_DL = @LIBADD_DL@
+LIBADD_DLD_LINK = @LIBADD_DLD_LINK@
+LIBADD_DLOPEN = @LIBADD_DLOPEN@
+LIBADD_GMP = @LIBADD_GMP@
+LIBADD_SHL_LOAD = @LIBADD_SHL_LOAD@
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+AUTOMAKE_OPTIONS = 1.5 foreign subdir-objects
+SUBDIRS = 
+TESTS_ENVIRONMENT = EXEEXT='@EXEEXT@' srcdir='$(srcdir)' \
+	LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	LOCALE_FR='@LOCALE_FR@' LOCALE_TR_UTF8='@LOCALE_TR_UTF8@' \
+	LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	LOCALE_JA='@LOCALE_JA@' LOCALE_ZH_CN='@LOCALE_ZH_CN@' \
+	LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	LOCALE_ZH_CN='@LOCALE_ZH_CN@' LOCALE_FR='@LOCALE_FR@' \
+	LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' LOCALE_FR='@LOCALE_FR@' \
+	LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	PATH='$(abs_aux_dir)'$(PATH_SEPARATOR)"$$PATH" \
+	LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	PATH='$(abs_aux_dir)'$(PATH_SEPARATOR)"$$PATH" \
+	LOCALE_FR='@LOCALE_FR@' LOCALE_FR_UTF8='@LOCALE_FR_UTF8@' \
+	LOCALE_JA='@LOCALE_JA@' LOCALE_ZH_CN='@LOCALE_ZH_CN@'
+noinst_HEADERS = 
+noinst_LIBRARIES = 
+check_LIBRARIES = libtests.a
+EXTRA_DIST = test-alloca-opt.c $(top_srcdir)/build-aux/arg-nonnull.h \
+	test-array_list.c macros.h test-array_oset.c macros.h \
+	test-avltree_oset.c macros.h test-binary-io.sh \
+	test-binary-io.c macros.h test-bitrotate.c macros.h \
+	test-btowc1.sh test-btowc2.sh test-btowc.c signature.h \
+	macros.h test-c-ctype.c macros.h test-c-strcase.sh \
+	test-c-strcasecmp.c test-c-strncasecmp.c macros.h \
+	test-canonicalize-lgpl.c signature.h macros.h test-cloexec.c \
+	macros.h test-closein.sh test-closein.c test-dirname.c \
+	test-dup2.c signature.h macros.h test-environ.c test-errno.c \
+	test-fcntl-h.c test-fcntl.c signature.h macros.h test-fflush.c \
+	test-fflush2.sh test-fflush2.c signature.h macros.h \
+	test-filenamecat.c test-fopen.h test-fopen-safer.c macros.h \
+	test-fopen.h test-fopen.c signature.h macros.h test-fpending.c \
+	test-fpending.sh macros.h test-fpurge.c macros.h \
+	test-freadahead.c test-freadahead.sh macros.h test-freading.c \
+	macros.h test-freadptr.c test-freadptr.sh test-freadptr2.c \
+	test-freadptr2.sh macros.h test-freadseek.c test-freadseek.sh \
+	macros.h test-frexp.c signature.h macros.h test-frexpl.c \
+	signature.h macros.h test-fseeko.c test-fseeko.sh \
+	test-fseeko2.sh signature.h macros.h test-fseterr.c \
+	test-ftello.c test-ftello.sh test-ftello2.sh signature.h \
+	macros.h test-getdtablesize.c signature.h macros.h \
+	getpagesize.c signature.h test-gettimeofday.c test-iconv.c \
+	signature.h macros.h test-inttypes.c test-isnand-nolibm.c \
+	test-isnand.h nan.h macros.h test-isnanf-nolibm.c \
+	test-isnanf.h nan.h macros.h test-isnanl-nolibm.c \
+	test-isnanl.h nan.h macros.h test-langinfo.c link.c \
+	test-link.h test-link.c signature.h macros.h \
+	test-linkedhash_list.c macros.h test-lseek.c test-lseek.sh \
+	signature.h macros.h test-lstat.h test-lstat.c signature.h \
+	macros.h test-malloca.c test-math.c test-mbrtowc1.sh \
+	test-mbrtowc2.sh test-mbrtowc3.sh test-mbrtowc4.sh \
+	test-mbrtowc.c signature.h macros.h test-mbsinit.sh \
+	test-mbsinit.c signature.h macros.h test-mbsstr1.c \
+	test-mbsstr2.sh test-mbsstr2.c test-mbsstr3.sh test-mbsstr3.c \
+	macros.h test-memchr.c zerosize-ptr.h signature.h macros.h \
+	test-memchr2.c zerosize-ptr.h macros.h test-memmem.c \
+	zerosize-ptr.h signature.h macros.h test-nl_langinfo.sh \
+	test-nl_langinfo.c signature.h macros.h obstack_printf.c \
+	test-obstack-printf.c signature.h macros.h test-open.h \
+	test-open.c signature.h macros.h test-pipe.sh test-pipe.c \
+	macros.h test-pipe2.c signature.h macros.h test-posix_spawn1.c \
+	test-posix_spawn1.in.sh test-posix_spawn2.c \
+	test-posix_spawn2.in.sh signature.h test-printf-frexp.c \
+	macros.h test-printf-frexpl.c macros.h putenv.c \
+	test-quotearg.sh test-quotearg.c macros.h \
+	locale/fr/LC_MESSAGES/test-quotearg.po \
+	locale/fr/LC_MESSAGES/test-quotearg.mo test-rawmemchr.c \
+	signature.h macros.h test-readlink.h test-readlink.c \
+	signature.h macros.h test-rename.h test-rename.c signature.h \
+	macros.h test-rmdir.h test-rmdir.c signature.h macros.h \
+	test-sched.c test-setenv.c signature.h macros.h \
+	test-sigaction.c signature.h macros.h test-signal.c \
+	test-signbit.c macros.h test-snprintf-posix.c \
+	test-snprintf-posix.h test-snprintf.c nan.h signature.h \
+	macros.h test-snprintf.c signature.h macros.h test-spawn.c \
+	test-sprintf-posix.c test-sprintf-posix.h nan.h signature.h \
+	macros.h test-stat.h test-stat.c signature.h macros.h \
+	test-stdbool.c test-stddef.c test-stdint.c test-stdio.c \
+	test-stdlib.c test-strchrnul.c signature.h macros.h strdup.c \
+	test-strerror.c signature.h macros.h test-striconv.c macros.h \
+	test-string.c test-strtod.c signature.h macros.h symlink.c \
+	test-symlink.h test-symlink.c signature.h macros.h \
+	test-sys_stat.c test-sys_time.c test-sys_wait.c test-time.c \
+	test-dup-safer.c macros.h test-unistd.c \
+	uniwidth/test-uc_width.c uniwidth/test-uc_width2.c \
+	uniwidth/test-uc_width2.sh macros.h test-unsetenv.c \
+	signature.h macros.h test-update-copyright.sh \
+	test-vasnprintf-posix.c test-vasnprintf-posix2.sh \
+	test-vasnprintf-posix2.c nan.h macros.h test-vasnprintf.c \
+	macros.h test-vasprintf-posix.c nan.h macros.h \
+	test-vasprintf.c signature.h macros.h \
+	test-vc-list-files-git.sh test-vc-list-files-cvs.sh \
+	test-vfprintf-posix.sh test-vfprintf-posix.c \
+	test-fprintf-posix.h test-printf-posix.output signature.h \
+	macros.h test-vprintf-posix.sh test-vprintf-posix.c \
+	test-printf-posix.h test-printf-posix.output signature.h \
+	macros.h $(top_srcdir)/build-aux/warn-on-use.h test-wchar.c \
+	test-wcrtomb.sh test-wcrtomb.c signature.h macros.h wctob.c \
+	test-wctype.c macros.h test-wcwidth.c signature.h macros.h \
+	test-xalloc-die.c test-xalloc-die.sh init.sh test-xmemdup0.c \
+	macros.h test-xprintf-posix.sh test-xfprintf-posix.c \
+	test-xprintf-posix.c test-fprintf-posix.h test-printf-posix.h \
+	test-printf-posix.output macros.h test-xvasprintf.c macros.h
+
+# The BUILT_SOURCES created by this Makefile snippet are not used via #include
+# statements but through direct file reference. Therefore this snippet must be
+# present in all Makefile.am that need it. This is ensured by the applicability
+# 'all' defined above.
+BUILT_SOURCES = arg-nonnull.h $(am__append_3) warn-on-use.h
+SUFFIXES = 
+MOSTLYCLEANFILES = core *.stackdump arg-nonnull.h arg-nonnull.h-t \
+	test-fflush.txt test-fpending.t t-fpurge.tmp t-freading.tmp \
+	$(am__append_4) warn-on-use.h warn-on-use.h-t
+MOSTLYCLEANDIRS = 
+CLEANFILES = 
+DISTCLEANFILES = 
+MAINTAINERCLEANFILES = 
+AM_CPPFLAGS = \
+  -I. -I$(srcdir) \
+  -I../.. -I$(srcdir)/../.. \
+  -I../../gnu -I$(srcdir)/../../gnu
+
+LDADD = libtests.a ../../gnu/libgnu.la libtests.a $(LIBTESTS_LIBDEPS)
+libtests_a_SOURCES = gl_array_list.h gl_array_list.c gl_array_oset.h \
+	gl_array_oset.c ignore-value.h
+libtests_a_LIBADD = $(M4tests_LIBOBJS)
+libtests_a_DEPENDENCIES = $(M4tests_LIBOBJS)
+EXTRA_libtests_a_SOURCES = getpagesize.c link.c obstack_printf.c \
+	putenv.c strdup.c symlink.c wctob.c
+AM_LIBTOOLFLAGS = --preserve-dup-deps
+ARG_NONNULL_H = arg-nonnull.h
+test_array_oset_LDADD = $(LDADD) @LIBINTL@
+test_closein_LDADD = $(LDADD) @LIBINTL@
+test_dirname_LDADD = $(LDADD) @LIBINTL@
+test_filenamecat_LDADD = $(LDADD) @LIBINTL@
+test_frexp_nolibm_SOURCES = test-frexp.c
+test_frexpl_nolibm_SOURCES = test-frexpl.c
+test_iconv_LDADD = $(LDADD) @LIBICONV@
+test_obstack_printf_LDADD = $(LDADD) @LIBINTL@
+test_pipe_LDADD = $(LDADD) @LIBINTL@
+test_quotearg_LDADD = $(LDADD) @LIBINTL@
+test_striconv_LDADD = $(LDADD) @LIBICONV@
+test_uc_width_SOURCES = uniwidth/test-uc_width.c
+test_uc_width2_SOURCES = uniwidth/test-uc_width2.c
+WARN_ON_USE_H = warn-on-use.h
+test_xalloc_die_LDADD = $(LDADD) @LIBINTL@
+test_xmemdup0_LDADD = $(LDADD) @LIBINTL@
+test_xfprintf_posix_LDADD = $(LDADD) @LIBINTL@
+test_xprintf_posix_LDADD = $(LDADD) @LIBINTL@
+test_xvasprintf_LDADD = $(LDADD) @LIBINTL@
+all: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) all-recursive
+
+.SUFFIXES:
+.SUFFIXES: .c .html .lo .log .o .obj .test .test$(EXEEXT)
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign tests/gnu/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign tests/gnu/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-checkLIBRARIES:
+	-test -z "$(check_LIBRARIES)" || rm -f $(check_LIBRARIES)
+
+clean-noinstLIBRARIES:
+	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
+libtests.a: $(libtests_a_OBJECTS) $(libtests_a_DEPENDENCIES) 
+	$(AM_V_at)-rm -f libtests.a
+	$(AM_V_AR)$(libtests_a_AR) libtests.a $(libtests_a_OBJECTS) $(libtests_a_LIBADD)
+	$(AM_V_at)$(RANLIB) libtests.a
+
+clean-checkPROGRAMS:
+	@list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+clean-noinstPROGRAMS:
+	@list='$(noinst_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+test-alloca-opt$(EXEEXT): $(test_alloca_opt_OBJECTS) $(test_alloca_opt_DEPENDENCIES) 
+	@rm -f test-alloca-opt$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_alloca_opt_OBJECTS) $(test_alloca_opt_LDADD) $(LIBS)
+test-array_list$(EXEEXT): $(test_array_list_OBJECTS) $(test_array_list_DEPENDENCIES) 
+	@rm -f test-array_list$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_array_list_OBJECTS) $(test_array_list_LDADD) $(LIBS)
+test-array_oset$(EXEEXT): $(test_array_oset_OBJECTS) $(test_array_oset_DEPENDENCIES) 
+	@rm -f test-array_oset$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_array_oset_OBJECTS) $(test_array_oset_LDADD) $(LIBS)
+test-avltree_oset$(EXEEXT): $(test_avltree_oset_OBJECTS) $(test_avltree_oset_DEPENDENCIES) 
+	@rm -f test-avltree_oset$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_avltree_oset_OBJECTS) $(test_avltree_oset_LDADD) $(LIBS)
+test-binary-io$(EXEEXT): $(test_binary_io_OBJECTS) $(test_binary_io_DEPENDENCIES) 
+	@rm -f test-binary-io$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_binary_io_OBJECTS) $(test_binary_io_LDADD) $(LIBS)
+test-bitrotate$(EXEEXT): $(test_bitrotate_OBJECTS) $(test_bitrotate_DEPENDENCIES) 
+	@rm -f test-bitrotate$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_bitrotate_OBJECTS) $(test_bitrotate_LDADD) $(LIBS)
+test-btowc$(EXEEXT): $(test_btowc_OBJECTS) $(test_btowc_DEPENDENCIES) 
+	@rm -f test-btowc$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_btowc_OBJECTS) $(test_btowc_LDADD) $(LIBS)
+test-c-ctype$(EXEEXT): $(test_c_ctype_OBJECTS) $(test_c_ctype_DEPENDENCIES) 
+	@rm -f test-c-ctype$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_c_ctype_OBJECTS) $(test_c_ctype_LDADD) $(LIBS)
+test-c-strcasecmp$(EXEEXT): $(test_c_strcasecmp_OBJECTS) $(test_c_strcasecmp_DEPENDENCIES) 
+	@rm -f test-c-strcasecmp$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_c_strcasecmp_OBJECTS) $(test_c_strcasecmp_LDADD) $(LIBS)
+test-c-strncasecmp$(EXEEXT): $(test_c_strncasecmp_OBJECTS) $(test_c_strncasecmp_DEPENDENCIES) 
+	@rm -f test-c-strncasecmp$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_c_strncasecmp_OBJECTS) $(test_c_strncasecmp_LDADD) $(LIBS)
+test-canonicalize-lgpl$(EXEEXT): $(test_canonicalize_lgpl_OBJECTS) $(test_canonicalize_lgpl_DEPENDENCIES) 
+	@rm -f test-canonicalize-lgpl$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_canonicalize_lgpl_OBJECTS) $(test_canonicalize_lgpl_LDADD) $(LIBS)
+test-cloexec$(EXEEXT): $(test_cloexec_OBJECTS) $(test_cloexec_DEPENDENCIES) 
+	@rm -f test-cloexec$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_cloexec_OBJECTS) $(test_cloexec_LDADD) $(LIBS)
+test-closein$(EXEEXT): $(test_closein_OBJECTS) $(test_closein_DEPENDENCIES) 
+	@rm -f test-closein$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_closein_OBJECTS) $(test_closein_LDADD) $(LIBS)
+test-dirname$(EXEEXT): $(test_dirname_OBJECTS) $(test_dirname_DEPENDENCIES) 
+	@rm -f test-dirname$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_dirname_OBJECTS) $(test_dirname_LDADD) $(LIBS)
+test-dup-safer$(EXEEXT): $(test_dup_safer_OBJECTS) $(test_dup_safer_DEPENDENCIES) 
+	@rm -f test-dup-safer$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_dup_safer_OBJECTS) $(test_dup_safer_LDADD) $(LIBS)
+test-dup2$(EXEEXT): $(test_dup2_OBJECTS) $(test_dup2_DEPENDENCIES) 
+	@rm -f test-dup2$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_dup2_OBJECTS) $(test_dup2_LDADD) $(LIBS)
+test-environ$(EXEEXT): $(test_environ_OBJECTS) $(test_environ_DEPENDENCIES) 
+	@rm -f test-environ$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_environ_OBJECTS) $(test_environ_LDADD) $(LIBS)
+test-errno$(EXEEXT): $(test_errno_OBJECTS) $(test_errno_DEPENDENCIES) 
+	@rm -f test-errno$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_errno_OBJECTS) $(test_errno_LDADD) $(LIBS)
+test-fcntl$(EXEEXT): $(test_fcntl_OBJECTS) $(test_fcntl_DEPENDENCIES) 
+	@rm -f test-fcntl$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fcntl_OBJECTS) $(test_fcntl_LDADD) $(LIBS)
+test-fcntl-h$(EXEEXT): $(test_fcntl_h_OBJECTS) $(test_fcntl_h_DEPENDENCIES) 
+	@rm -f test-fcntl-h$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fcntl_h_OBJECTS) $(test_fcntl_h_LDADD) $(LIBS)
+test-fflush$(EXEEXT): $(test_fflush_OBJECTS) $(test_fflush_DEPENDENCIES) 
+	@rm -f test-fflush$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fflush_OBJECTS) $(test_fflush_LDADD) $(LIBS)
+test-fflush2$(EXEEXT): $(test_fflush2_OBJECTS) $(test_fflush2_DEPENDENCIES) 
+	@rm -f test-fflush2$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fflush2_OBJECTS) $(test_fflush2_LDADD) $(LIBS)
+test-filenamecat$(EXEEXT): $(test_filenamecat_OBJECTS) $(test_filenamecat_DEPENDENCIES) 
+	@rm -f test-filenamecat$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_filenamecat_OBJECTS) $(test_filenamecat_LDADD) $(LIBS)
+test-fopen$(EXEEXT): $(test_fopen_OBJECTS) $(test_fopen_DEPENDENCIES) 
+	@rm -f test-fopen$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fopen_OBJECTS) $(test_fopen_LDADD) $(LIBS)
+test-fopen-safer$(EXEEXT): $(test_fopen_safer_OBJECTS) $(test_fopen_safer_DEPENDENCIES) 
+	@rm -f test-fopen-safer$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fopen_safer_OBJECTS) $(test_fopen_safer_LDADD) $(LIBS)
+test-fpending$(EXEEXT): $(test_fpending_OBJECTS) $(test_fpending_DEPENDENCIES) 
+	@rm -f test-fpending$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fpending_OBJECTS) $(test_fpending_LDADD) $(LIBS)
+test-fpurge$(EXEEXT): $(test_fpurge_OBJECTS) $(test_fpurge_DEPENDENCIES) 
+	@rm -f test-fpurge$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fpurge_OBJECTS) $(test_fpurge_LDADD) $(LIBS)
+test-freadahead$(EXEEXT): $(test_freadahead_OBJECTS) $(test_freadahead_DEPENDENCIES) 
+	@rm -f test-freadahead$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_freadahead_OBJECTS) $(test_freadahead_LDADD) $(LIBS)
+test-freading$(EXEEXT): $(test_freading_OBJECTS) $(test_freading_DEPENDENCIES) 
+	@rm -f test-freading$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_freading_OBJECTS) $(test_freading_LDADD) $(LIBS)
+test-freadptr$(EXEEXT): $(test_freadptr_OBJECTS) $(test_freadptr_DEPENDENCIES) 
+	@rm -f test-freadptr$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_freadptr_OBJECTS) $(test_freadptr_LDADD) $(LIBS)
+test-freadptr2$(EXEEXT): $(test_freadptr2_OBJECTS) $(test_freadptr2_DEPENDENCIES) 
+	@rm -f test-freadptr2$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_freadptr2_OBJECTS) $(test_freadptr2_LDADD) $(LIBS)
+test-freadseek$(EXEEXT): $(test_freadseek_OBJECTS) $(test_freadseek_DEPENDENCIES) 
+	@rm -f test-freadseek$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_freadseek_OBJECTS) $(test_freadseek_LDADD) $(LIBS)
+test-frexp-nolibm$(EXEEXT): $(test_frexp_nolibm_OBJECTS) $(test_frexp_nolibm_DEPENDENCIES) 
+	@rm -f test-frexp-nolibm$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_frexp_nolibm_OBJECTS) $(test_frexp_nolibm_LDADD) $(LIBS)
+test-frexpl-nolibm$(EXEEXT): $(test_frexpl_nolibm_OBJECTS) $(test_frexpl_nolibm_DEPENDENCIES) 
+	@rm -f test-frexpl-nolibm$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_frexpl_nolibm_OBJECTS) $(test_frexpl_nolibm_LDADD) $(LIBS)
+test-fseeko$(EXEEXT): $(test_fseeko_OBJECTS) $(test_fseeko_DEPENDENCIES) 
+	@rm -f test-fseeko$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fseeko_OBJECTS) $(test_fseeko_LDADD) $(LIBS)
+test-fseterr$(EXEEXT): $(test_fseterr_OBJECTS) $(test_fseterr_DEPENDENCIES) 
+	@rm -f test-fseterr$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_fseterr_OBJECTS) $(test_fseterr_LDADD) $(LIBS)
+test-ftello$(EXEEXT): $(test_ftello_OBJECTS) $(test_ftello_DEPENDENCIES) 
+	@rm -f test-ftello$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_ftello_OBJECTS) $(test_ftello_LDADD) $(LIBS)
+test-getdtablesize$(EXEEXT): $(test_getdtablesize_OBJECTS) $(test_getdtablesize_DEPENDENCIES) 
+	@rm -f test-getdtablesize$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_getdtablesize_OBJECTS) $(test_getdtablesize_LDADD) $(LIBS)
+test-gettimeofday$(EXEEXT): $(test_gettimeofday_OBJECTS) $(test_gettimeofday_DEPENDENCIES) 
+	@rm -f test-gettimeofday$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_gettimeofday_OBJECTS) $(test_gettimeofday_LDADD) $(LIBS)
+test-iconv$(EXEEXT): $(test_iconv_OBJECTS) $(test_iconv_DEPENDENCIES) 
+	@rm -f test-iconv$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_iconv_OBJECTS) $(test_iconv_LDADD) $(LIBS)
+test-inttypes$(EXEEXT): $(test_inttypes_OBJECTS) $(test_inttypes_DEPENDENCIES) 
+	@rm -f test-inttypes$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_inttypes_OBJECTS) $(test_inttypes_LDADD) $(LIBS)
+test-isnand-nolibm$(EXEEXT): $(test_isnand_nolibm_OBJECTS) $(test_isnand_nolibm_DEPENDENCIES) 
+	@rm -f test-isnand-nolibm$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_isnand_nolibm_OBJECTS) $(test_isnand_nolibm_LDADD) $(LIBS)
+test-isnanf-nolibm$(EXEEXT): $(test_isnanf_nolibm_OBJECTS) $(test_isnanf_nolibm_DEPENDENCIES) 
+	@rm -f test-isnanf-nolibm$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_isnanf_nolibm_OBJECTS) $(test_isnanf_nolibm_LDADD) $(LIBS)
+test-isnanl-nolibm$(EXEEXT): $(test_isnanl_nolibm_OBJECTS) $(test_isnanl_nolibm_DEPENDENCIES) 
+	@rm -f test-isnanl-nolibm$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_isnanl_nolibm_OBJECTS) $(test_isnanl_nolibm_LDADD) $(LIBS)
+test-langinfo$(EXEEXT): $(test_langinfo_OBJECTS) $(test_langinfo_DEPENDENCIES) 
+	@rm -f test-langinfo$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_langinfo_OBJECTS) $(test_langinfo_LDADD) $(LIBS)
+test-link$(EXEEXT): $(test_link_OBJECTS) $(test_link_DEPENDENCIES) 
+	@rm -f test-link$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_link_OBJECTS) $(test_link_LDADD) $(LIBS)
+test-linkedhash_list$(EXEEXT): $(test_linkedhash_list_OBJECTS) $(test_linkedhash_list_DEPENDENCIES) 
+	@rm -f test-linkedhash_list$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_linkedhash_list_OBJECTS) $(test_linkedhash_list_LDADD) $(LIBS)
+test-lseek$(EXEEXT): $(test_lseek_OBJECTS) $(test_lseek_DEPENDENCIES) 
+	@rm -f test-lseek$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_lseek_OBJECTS) $(test_lseek_LDADD) $(LIBS)
+test-lstat$(EXEEXT): $(test_lstat_OBJECTS) $(test_lstat_DEPENDENCIES) 
+	@rm -f test-lstat$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_lstat_OBJECTS) $(test_lstat_LDADD) $(LIBS)
+test-malloca$(EXEEXT): $(test_malloca_OBJECTS) $(test_malloca_DEPENDENCIES) 
+	@rm -f test-malloca$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_malloca_OBJECTS) $(test_malloca_LDADD) $(LIBS)
+test-math$(EXEEXT): $(test_math_OBJECTS) $(test_math_DEPENDENCIES) 
+	@rm -f test-math$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_math_OBJECTS) $(test_math_LDADD) $(LIBS)
+test-mbrtowc$(EXEEXT): $(test_mbrtowc_OBJECTS) $(test_mbrtowc_DEPENDENCIES) 
+	@rm -f test-mbrtowc$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_mbrtowc_OBJECTS) $(test_mbrtowc_LDADD) $(LIBS)
+test-mbsinit$(EXEEXT): $(test_mbsinit_OBJECTS) $(test_mbsinit_DEPENDENCIES) 
+	@rm -f test-mbsinit$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_mbsinit_OBJECTS) $(test_mbsinit_LDADD) $(LIBS)
+test-mbsstr1$(EXEEXT): $(test_mbsstr1_OBJECTS) $(test_mbsstr1_DEPENDENCIES) 
+	@rm -f test-mbsstr1$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_mbsstr1_OBJECTS) $(test_mbsstr1_LDADD) $(LIBS)
+test-mbsstr2$(EXEEXT): $(test_mbsstr2_OBJECTS) $(test_mbsstr2_DEPENDENCIES) 
+	@rm -f test-mbsstr2$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_mbsstr2_OBJECTS) $(test_mbsstr2_LDADD) $(LIBS)
+test-mbsstr3$(EXEEXT): $(test_mbsstr3_OBJECTS) $(test_mbsstr3_DEPENDENCIES) 
+	@rm -f test-mbsstr3$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_mbsstr3_OBJECTS) $(test_mbsstr3_LDADD) $(LIBS)
+test-memchr$(EXEEXT): $(test_memchr_OBJECTS) $(test_memchr_DEPENDENCIES) 
+	@rm -f test-memchr$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_memchr_OBJECTS) $(test_memchr_LDADD) $(LIBS)
+test-memchr2$(EXEEXT): $(test_memchr2_OBJECTS) $(test_memchr2_DEPENDENCIES) 
+	@rm -f test-memchr2$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_memchr2_OBJECTS) $(test_memchr2_LDADD) $(LIBS)
+test-memmem$(EXEEXT): $(test_memmem_OBJECTS) $(test_memmem_DEPENDENCIES) 
+	@rm -f test-memmem$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_memmem_OBJECTS) $(test_memmem_LDADD) $(LIBS)
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+	@rm -f test-obstack-printf$(EXEEXT)
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+	@rm -f test-posix_spawn2$(EXEEXT)
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+	@rm -f test-printf-frexp$(EXEEXT)
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+	@rm -f test-printf-frexpl$(EXEEXT)
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+	@rm -f test-snprintf$(EXEEXT)
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+	@rm -f test-snprintf-posix$(EXEEXT)
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+	@rm -f test-spawn$(EXEEXT)
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+	@rm -f test-stdint$(EXEEXT)
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+	@rm -f test-stdio$(EXEEXT)
+	$(AM_V_CCLD)$(LINK) $(test_stdio_OBJECTS) $(test_stdio_LDADD) $(LIBS)
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+	@rm -f test-stdlib$(EXEEXT)
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+	    echo >&2 "incorrect case"; exit 4;;				\
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+	if test "$$skip" -ne 0; then					\
+	  if test "$$skip" -eq 1; then					\
+	    msg="$$msg($$skip test was not run).  ";			\
+	  else								\
+	    msg="$$msg($$skip tests were not run).  ";			\
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+	  echo "$(PACKAGE_STRING): $(subdir)/$(TEST_SUITE_LOG)" |	\
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+	  echo "$$msg";							\
+	  echo;								\
+	  echo ".. contents:: :depth: 2";				\
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+	    read line < $$f;						\
+	    case $$line in						\
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+	    esac;							\
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+	  if test -n "$(PACKAGE_BUGREPORT)"; then			\
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+	  rv=0; else rv=$$?;					\
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+	        if read line < $$f; then				\
+	          case $$line in FAIL*|XPASS*) echo $$f;; esac;		\
+	        else echo $$f; fi;					\
+	      done | tr '\012\015' '  '`;				\
+	$(MAKE) $(AM_MAKEFLAGS) $$target AM_MAKEFLAGS='$(AM_MAKEFLAGS) TEST_LOGS="'"$$list"'"'
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+	@p='test-avltree_oset$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-binary-io.sh.log: test-binary-io.sh
+	@p='test-binary-io.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-bitrotate.log: test-bitrotate$(EXEEXT)
+	@p='test-bitrotate$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-btowc1.sh.log: test-btowc1.sh
+	@p='test-btowc1.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-btowc2.sh.log: test-btowc2.sh
+	@p='test-btowc2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-c-ctype.log: test-c-ctype$(EXEEXT)
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+test-c-strcase.sh.log: test-c-strcase.sh
+	@p='test-c-strcase.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-canonicalize-lgpl.log: test-canonicalize-lgpl$(EXEEXT)
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+test-cloexec.log: test-cloexec$(EXEEXT)
+	@p='test-cloexec$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-closein.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-dirname$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-fflush$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-fflush2.sh.log: test-fflush2.sh
+	@p='test-fflush2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+test-fopen.log: test-fopen$(EXEEXT)
+	@p='test-fopen$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-fpending.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-freading$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-freadptr.sh.log: test-freadptr.sh
+	@p='test-freadptr.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-freadptr2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+test-frexp-nolibm.log: test-frexp-nolibm$(EXEEXT)
+	@p='test-frexp-nolibm$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-frexpl-nolibm.log: test-frexpl-nolibm$(EXEEXT)
+	@p='test-frexpl-nolibm$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-fseeko.sh.log: test-fseeko.sh
+	@p='test-fseeko.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-fseeko2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-fseterr$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-ftello.sh.log: test-ftello.sh
+	@p='test-ftello.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-ftello2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-getdtablesize$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-gettimeofday$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-iconv$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-inttypes.log: test-inttypes$(EXEEXT)
+	@p='test-inttypes$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-isnand-nolibm.log: test-isnand-nolibm$(EXEEXT)
+	@p='test-isnand-nolibm$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-isnanf-nolibm.log: test-isnanf-nolibm$(EXEEXT)
+	@p='test-isnanf-nolibm$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-isnanl-nolibm.log: test-isnanl-nolibm$(EXEEXT)
+	@p='test-isnanl-nolibm$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-langinfo$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-link.log: test-link$(EXEEXT)
+	@p='test-link$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-linkedhash_list.log: test-linkedhash_list$(EXEEXT)
+	@p='test-linkedhash_list$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-lseek.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-lstat$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-malloca.log: test-malloca$(EXEEXT)
+	@p='test-malloca$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-math.log: test-math$(EXEEXT)
+	@p='test-math$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-mbrtowc1.sh.log: test-mbrtowc1.sh
+	@p='test-mbrtowc1.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-mbrtowc2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-mbrtowc3.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-mbrtowc4.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-mbsinit.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-mbsstr1.log: test-mbsstr1$(EXEEXT)
+	@p='test-mbsstr1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-mbsstr2.sh.log: test-mbsstr2.sh
+	@p='test-mbsstr2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-mbsstr3.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-memchr$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-memchr2$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-memmem.log: test-memmem$(EXEEXT)
+	@p='test-memmem$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-nl_langinfo.sh.log: test-nl_langinfo.sh
+	@p='test-nl_langinfo.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-obstack-printf.log: test-obstack-printf$(EXEEXT)
+	@p='test-obstack-printf$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-open.log: test-open$(EXEEXT)
+	@p='test-open$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-pipe.sh.log: test-pipe.sh
+	@p='test-pipe.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-pipe2$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-posix_spawn1.log: test-posix_spawn1$(EXEEXT)
+	@p='test-posix_spawn1$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-posix_spawn2$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-printf-frexp.log: test-printf-frexp$(EXEEXT)
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+	@p='test-printf-frexpl$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-quotearg.sh.log: test-quotearg.sh
+	@p='test-quotearg.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-rawmemchr$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-readlink$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-rename$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-rmdir$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-sched$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-setenv$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-sigaction$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-signal$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-signbit$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-snprintf-posix.log: test-snprintf-posix$(EXEEXT)
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+	@p='test-snprintf$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-sprintf-posix$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-stdint$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-stdio$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-strchrnul$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-strerror$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-striconv.log: test-striconv$(EXEEXT)
+	@p='test-striconv$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-sys_time$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-sys_wait$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-time$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-dup-safer$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-unistd.log: test-unistd$(EXEEXT)
+	@p='test-unistd$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-uc_width.log: test-uc_width$(EXEEXT)
+	@p='test-uc_width$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+uniwidth/test-uc_width2.sh.log: uniwidth/test-uc_width2.sh
+	@p='uniwidth/test-uc_width2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-unsetenv$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-update-copyright.sh.log: test-update-copyright.sh
+	@p='test-update-copyright.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vasnprintf-posix.log: test-vasnprintf-posix$(EXEEXT)
+	@p='test-vasnprintf-posix$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vasnprintf-posix2.sh.log: test-vasnprintf-posix2.sh
+	@p='test-vasnprintf-posix2.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vasnprintf.log: test-vasnprintf$(EXEEXT)
+	@p='test-vasnprintf$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vasprintf-posix.log: test-vasprintf-posix$(EXEEXT)
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+test-vasprintf.log: test-vasprintf$(EXEEXT)
+	@p='test-vasprintf$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vc-list-files-git.sh.log: test-vc-list-files-git.sh
+	@p='test-vc-list-files-git.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vc-list-files-cvs.sh.log: test-vc-list-files-cvs.sh
+	@p='test-vc-list-files-cvs.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-vfprintf-posix.sh.log: test-vfprintf-posix.sh
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+test-wchar.log: test-wchar$(EXEEXT)
+	@p='test-wchar$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-wcrtomb.sh.log: test-wcrtomb.sh
+	@p='test-wcrtomb.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='test-wctype$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-wcwidth.log: test-wcwidth$(EXEEXT)
+	@p='test-wcwidth$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-xalloc-die.sh.log: test-xalloc-die.sh
+	@p='test-xalloc-die.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-xmemdup0.log: test-xmemdup0$(EXEEXT)
+	@p='test-xmemdup0$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-xprintf-posix.sh.log: test-xprintf-posix.sh
+	@p='test-xprintf-posix.sh'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
+test-xvasprintf.log: test-xvasprintf$(EXEEXT)
+	@p='test-xvasprintf$(EXEEXT)'; $(am__check_pre) $(LOG_COMPILE) "$$tst" $(am__check_post)
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+	@p='$<'; $(am__check_pre) $(TEST_LOG_COMPILE) "$$tst" $(am__check_post)
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+@am__EXEEXT_TRUE@	@p='$<'; $(am__check_pre) $(TEST_LOG_COMPILE) "$$tst" $(am__check_post)
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test -d "$(distdir)/$$subdir" \
+	    || $(MKDIR_P) "$(distdir)/$$subdir" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+	$(MAKE) $(AM_MAKEFLAGS) $(check_LIBRARIES) $(check_PROGRAMS)
+	$(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) check-recursive
+all-am: Makefile $(LIBRARIES) $(PROGRAMS) $(HEADERS)
+installdirs: installdirs-recursive
+installdirs-am:
+install: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	$(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	  install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	  `test -z '$(STRIP)' || \
+	    echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+mostlyclean-generic:
+	-test -z "$(MOSTLYCLEANFILES)" || rm -f $(MOSTLYCLEANFILES)
+	-test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+	-test -z "$(TEST_LOGS_TMP)" || rm -f $(TEST_LOGS_TMP)
+	-test -z "$(TEST_SUITE_HTML)" || rm -f $(TEST_SUITE_HTML)
+	-test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+	-rm -f uniwidth/$(DEPDIR)/$(am__dirstamp)
+	-rm -f uniwidth/$(am__dirstamp)
+	-test -z "$(DISTCLEANFILES)" || rm -f $(DISTCLEANFILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-recursive
+
+clean-am: clean-checkLIBRARIES clean-checkPROGRAMS clean-generic \
+	clean-libtool clean-local clean-noinstLIBRARIES \
+	clean-noinstPROGRAMS mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -rf ./$(DEPDIR) uniwidth/$(DEPDIR)
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -rf ./$(DEPDIR) uniwidth/$(DEPDIR)
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool mostlyclean-local
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) all check \
+	check-am check-html ctags-recursive install install-am \
+	install-strip recheck recheck-html tags-recursive
+
+.PHONY: $(RECURSIVE_CLEAN_TARGETS) $(RECURSIVE_TARGETS) CTAGS GTAGS \
+	all all-am check check-TESTS check-am check-html clean \
+	clean-checkLIBRARIES clean-checkPROGRAMS clean-generic \
+	clean-libtool clean-local clean-noinstLIBRARIES \
+	clean-noinstPROGRAMS ctags ctags-recursive distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool mostlyclean-local pdf pdf-am ps ps-am \
+	recheck recheck-html tags tags-recursive uninstall \
+	uninstall-am
+
+# The arg-nonnull.h that gets inserted into generated .h files is the same as
+# build-aux/arg-nonnull.h, except that it has the copyright header cut off.
+arg-nonnull.h: $(top_srcdir)/build-aux/arg-nonnull.h
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	sed -n -e '/GL_ARG_NONNULL/,$$p' \
+	  < $(top_srcdir)/build-aux/arg-nonnull.h \
+	  > $@-t && \
+	mv $@-t $@
+@POSIX_SPAWN_PORTED_TRUE@test-posix_spawn1.sh: test-posix_spawn1.in.sh
+@POSIX_SPAWN_PORTED_TRUE@	$(AM_V_GEN)rm -f $@-t $@ && \
+@POSIX_SPAWN_PORTED_TRUE@	cp $(srcdir)/test-posix_spawn1.in.sh $@-t && \
+@POSIX_SPAWN_PORTED_TRUE@	mv $@-t $@
+@POSIX_SPAWN_PORTED_TRUE@test-posix_spawn2.sh: test-posix_spawn2.in.sh
+@POSIX_SPAWN_PORTED_TRUE@	$(AM_V_GEN)rm -f $@-t $@ && \
+@POSIX_SPAWN_PORTED_TRUE@	cp $(srcdir)/test-posix_spawn2.in.sh $@-t && \
+@POSIX_SPAWN_PORTED_TRUE@	mv $@-t $@
+# The warn-on-use.h that gets inserted into generated .h files is the same as
+# build-aux/warn-on-use.h, except that it has the copyright header cut off.
+warn-on-use.h: $(top_srcdir)/build-aux/warn-on-use.h
+	$(AM_V_GEN)rm -f $@-t $@ && \
+	sed -n -e '/^.ifndef/,$$p' \
+	  < $(top_srcdir)/build-aux/warn-on-use.h \
+	  > $@-t && \
+	mv $@-t $@
+
+# Clean up after Solaris cc.
+clean-local:
+	rm -rf SunWS_cache
+
+mostlyclean-local: mostlyclean-generic
+	@for dir in '' $(MOSTLYCLEANDIRS); do \
+	  if test -n "$$dir" && test -d $$dir; then \
+	    echo "rmdir $$dir"; rmdir $$dir; \
+	  fi; \
+	done; \
+	:
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/tests/gnu/getpagesize.c b/tests/gnu/getpagesize.c
new file mode 100755
index 00000000..cc252687
--- /dev/null
+++ b/tests/gnu/getpagesize.c
@@ -0,0 +1,39 @@
+/* getpagesize emulation for systems where it cannot be done in a C macro.
+
+   Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible and Martin Lambers.  */
+
+#include <config.h>
+
+/* Specification. */
+#include <unistd.h>
+
+/* This implementation is only for native Win32 systems.  */
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+
+int
+getpagesize (void)
+{
+  SYSTEM_INFO system_info;
+  GetSystemInfo (&system_info);
+  return system_info.dwPageSize;
+}
+
+#endif
diff --git a/tests/gnu/gl_array_list.c b/tests/gnu/gl_array_list.c
new file mode 100755
index 00000000..106dc216
--- /dev/null
+++ b/tests/gnu/gl_array_list.c
@@ -0,0 +1,680 @@
+/* Sequential list data type implemented by an array.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "gl_array_list.h"
+
+#include <stdlib.h>
+/* Get memcpy.  */
+#include <string.h>
+
+/* Checked size_t computations.  */
+#include "xsize.h"
+
+#ifndef uintptr_t
+# define uintptr_t unsigned long
+#endif
+
+/* -------------------------- gl_list_t Data Type -------------------------- */
+
+/* Concrete gl_list_impl type, valid for this file only.  */
+struct gl_list_impl
+{
+  struct gl_list_impl_base base;
+  /* An array of ALLOCATED elements, of which the first COUNT are used.
+     0 <= COUNT <= ALLOCATED.  */
+  const void **elements;
+  size_t count;
+  size_t allocated;
+};
+
+/* struct gl_list_node_impl doesn't exist here.  The pointers are actually
+   indices + 1.  */
+#define INDEX_TO_NODE(index) (gl_list_node_t)(uintptr_t)(size_t)((index) + 1)
+#define NODE_TO_INDEX(node) ((uintptr_t)(node) - 1)
+
+static gl_list_t
+gl_array_nx_create_empty (gl_list_implementation_t implementation,
+                          gl_listelement_equals_fn equals_fn,
+                          gl_listelement_hashcode_fn hashcode_fn,
+                          gl_listelement_dispose_fn dispose_fn,
+                          bool allow_duplicates)
+{
+  struct gl_list_impl *list =
+    (struct gl_list_impl *) malloc (sizeof (struct gl_list_impl));
+
+  if (list == NULL)
+    return NULL;
+
+  list->base.vtable = implementation;
+  list->base.equals_fn = equals_fn;
+  list->base.hashcode_fn = hashcode_fn;
+  list->base.dispose_fn = dispose_fn;
+  list->base.allow_duplicates = allow_duplicates;
+  list->elements = NULL;
+  list->count = 0;
+  list->allocated = 0;
+
+  return list;
+}
+
+static gl_list_t
+gl_array_nx_create (gl_list_implementation_t implementation,
+                    gl_listelement_equals_fn equals_fn,
+                    gl_listelement_hashcode_fn hashcode_fn,
+                    gl_listelement_dispose_fn dispose_fn,
+                    bool allow_duplicates,
+                    size_t count, const void **contents)
+{
+  struct gl_list_impl *list =
+    (struct gl_list_impl *) malloc (sizeof (struct gl_list_impl));
+
+  if (list == NULL)
+    return NULL;
+
+  list->base.vtable = implementation;
+  list->base.equals_fn = equals_fn;
+  list->base.hashcode_fn = hashcode_fn;
+  list->base.dispose_fn = dispose_fn;
+  list->base.allow_duplicates = allow_duplicates;
+  if (count > 0)
+    {
+      if (size_overflow_p (xtimes (count, sizeof (const void *))))
+        goto fail;
+      list->elements = (const void **) malloc (count * sizeof (const void *));
+      if (list->elements == NULL)
+        goto fail;
+      memcpy (list->elements, contents, count * sizeof (const void *));
+    }
+  else
+    list->elements = NULL;
+  list->count = count;
+  list->allocated = count;
+
+  return list;
+
+ fail:
+  free (list);
+  return NULL;
+}
+
+static size_t
+gl_array_size (gl_list_t list)
+{
+  return list->count;
+}
+
+static const void *
+gl_array_node_value (gl_list_t list, gl_list_node_t node)
+{
+  uintptr_t index = NODE_TO_INDEX (node);
+  if (!(index < list->count))
+    /* Invalid argument.  */
+    abort ();
+  return list->elements[index];
+}
+
+static int
+gl_array_node_nx_set_value (gl_list_t list, gl_list_node_t node,
+                            const void *elt)
+{
+  uintptr_t index = NODE_TO_INDEX (node);
+  if (!(index < list->count))
+    /* Invalid argument.  */
+    abort ();
+  list->elements[index] = elt;
+  return 0;
+}
+
+static gl_list_node_t
+gl_array_next_node (gl_list_t list, gl_list_node_t node)
+{
+  uintptr_t index = NODE_TO_INDEX (node);
+  if (!(index < list->count))
+    /* Invalid argument.  */
+    abort ();
+  index++;
+  if (index < list->count)
+    return INDEX_TO_NODE (index);
+  else
+    return NULL;
+}
+
+static gl_list_node_t
+gl_array_previous_node (gl_list_t list, gl_list_node_t node)
+{
+  uintptr_t index = NODE_TO_INDEX (node);
+  if (!(index < list->count))
+    /* Invalid argument.  */
+    abort ();
+  if (index > 0)
+    return INDEX_TO_NODE (index - 1);
+  else
+    return NULL;
+}
+
+static const void *
+gl_array_get_at (gl_list_t list, size_t position)
+{
+  size_t count = list->count;
+
+  if (!(position < count))
+    /* Invalid argument.  */
+    abort ();
+  return list->elements[position];
+}
+
+static gl_list_node_t
+gl_array_nx_set_at (gl_list_t list, size_t position, const void *elt)
+{
+  size_t count = list->count;
+
+  if (!(position < count))
+    /* Invalid argument.  */
+    abort ();
+  list->elements[position] = elt;
+  return INDEX_TO_NODE (position);
+}
+
+static size_t
+gl_array_indexof_from_to (gl_list_t list, size_t start_index, size_t end_index,
+                          const void *elt)
+{
+  size_t count = list->count;
+
+  if (!(start_index <= end_index && end_index <= count))
+    /* Invalid arguments.  */
+    abort ();
+
+  if (start_index < end_index)
+    {
+      gl_listelement_equals_fn equals = list->base.equals_fn;
+      if (equals != NULL)
+        {
+          size_t i;
+
+          for (i = start_index;;)
+            {
+              if (equals (elt, list->elements[i]))
+                return i;
+              i++;
+              if (i == end_index)
+                break;
+            }
+        }
+      else
+        {
+          size_t i;
+
+          for (i = start_index;;)
+            {
+              if (elt == list->elements[i])
+                return i;
+              i++;
+              if (i == end_index)
+                break;
+            }
+        }
+    }
+  return (size_t)(-1);
+}
+
+static gl_list_node_t
+gl_array_search_from_to (gl_list_t list, size_t start_index, size_t end_index,
+                         const void *elt)
+{
+  size_t index = gl_array_indexof_from_to (list, start_index, end_index, elt);
+  return INDEX_TO_NODE (index);
+}
+
+/* Ensure that list->allocated > list->count.
+   Return 0 upon success, -1 upon out-of-memory.  */
+static int
+grow (gl_list_t list)
+{
+  size_t new_allocated;
+  size_t memory_size;
+  const void **memory;
+
+  new_allocated = xtimes (list->allocated, 2);
+  new_allocated = xsum (new_allocated, 1);
+  memory_size = xtimes (new_allocated, sizeof (const void *));
+  if (size_overflow_p (memory_size))
+    /* Overflow, would lead to out of memory.  */
+    return -1;
+  memory = (const void **) realloc (list->elements, memory_size);
+  if (memory == NULL)
+    /* Out of memory.  */
+    return -1;
+  list->elements = memory;
+  list->allocated = new_allocated;
+  return 0;
+}
+
+static gl_list_node_t
+gl_array_nx_add_first (gl_list_t list, const void *elt)
+{
+  size_t count = list->count;
+  const void **elements;
+  size_t i;
+
+  if (count == list->allocated)
+    if (grow (list) < 0)
+      return NULL;
+  elements = list->elements;
+  for (i = count; i > 0; i--)
+    elements[i] = elements[i - 1];
+  elements[0] = elt;
+  list->count = count + 1;
+  return INDEX_TO_NODE (0);
+}
+
+static gl_list_node_t
+gl_array_nx_add_last (gl_list_t list, const void *elt)
+{
+  size_t count = list->count;
+
+  if (count == list->allocated)
+    if (grow (list) < 0)
+      return NULL;
+  list->elements[count] = elt;
+  list->count = count + 1;
+  return INDEX_TO_NODE (count);
+}
+
+static gl_list_node_t
+gl_array_nx_add_before (gl_list_t list, gl_list_node_t node, const void *elt)
+{
+  size_t count = list->count;
+  uintptr_t index = NODE_TO_INDEX (node);
+  size_t position;
+  const void **elements;
+  size_t i;
+
+  if (!(index < count))
+    /* Invalid argument.  */
+    abort ();
+  position = index;
+  if (count == list->allocated)
+    if (grow (list) < 0)
+      return NULL;
+  elements = list->elements;
+  for (i = count; i > position; i--)
+    elements[i] = elements[i - 1];
+  elements[position] = elt;
+  list->count = count + 1;
+  return INDEX_TO_NODE (position);
+}
+
+static gl_list_node_t
+gl_array_nx_add_after (gl_list_t list, gl_list_node_t node, const void *elt)
+{
+  size_t count = list->count;
+  uintptr_t index = NODE_TO_INDEX (node);
+  size_t position;
+  const void **elements;
+  size_t i;
+
+  if (!(index < count))
+    /* Invalid argument.  */
+    abort ();
+  position = index + 1;
+  if (count == list->allocated)
+    if (grow (list) < 0)
+      return NULL;
+  elements = list->elements;
+  for (i = count; i > position; i--)
+    elements[i] = elements[i - 1];
+  elements[position] = elt;
+  list->count = count + 1;
+  return INDEX_TO_NODE (position);
+}
+
+static gl_list_node_t
+gl_array_nx_add_at (gl_list_t list, size_t position, const void *elt)
+{
+  size_t count = list->count;
+  const void **elements;
+  size_t i;
+
+  if (!(position <= count))
+    /* Invalid argument.  */
+    abort ();
+  if (count == list->allocated)
+    if (grow (list) < 0)
+      return NULL;
+  elements = list->elements;
+  for (i = count; i > position; i--)
+    elements[i] = elements[i - 1];
+  elements[position] = elt;
+  list->count = count + 1;
+  return INDEX_TO_NODE (position);
+}
+
+static bool
+gl_array_remove_node (gl_list_t list, gl_list_node_t node)
+{
+  size_t count = list->count;
+  uintptr_t index = NODE_TO_INDEX (node);
+  size_t position;
+  const void **elements;
+  size_t i;
+
+  if (!(index < count))
+    /* Invalid argument.  */
+    abort ();
+  position = index;
+  elements = list->elements;
+  if (list->base.dispose_fn != NULL)
+    list->base.dispose_fn (elements[position]);
+  for (i = position + 1; i < count; i++)
+    elements[i - 1] = elements[i];
+  list->count = count - 1;
+  return true;
+}
+
+static bool
+gl_array_remove_at (gl_list_t list, size_t position)
+{
+  size_t count = list->count;
+  const void **elements;
+  size_t i;
+
+  if (!(position < count))
+    /* Invalid argument.  */
+    abort ();
+  elements = list->elements;
+  if (list->base.dispose_fn != NULL)
+    list->base.dispose_fn (elements[position]);
+  for (i = position + 1; i < count; i++)
+    elements[i - 1] = elements[i];
+  list->count = count - 1;
+  return true;
+}
+
+static bool
+gl_array_remove (gl_list_t list, const void *elt)
+{
+  size_t position = gl_array_indexof_from_to (list, 0, list->count, elt);
+  if (position == (size_t)(-1))
+    return false;
+  else
+    return gl_array_remove_at (list, position);
+}
+
+static void
+gl_array_list_free (gl_list_t list)
+{
+  if (list->elements != NULL)
+    {
+      if (list->base.dispose_fn != NULL)
+        {
+          size_t count = list->count;
+
+          if (count > 0)
+            {
+              gl_listelement_dispose_fn dispose = list->base.dispose_fn;
+              const void **elements = list->elements;
+
+              do
+                dispose (*elements++);
+              while (--count > 0);
+            }
+        }
+      free (list->elements);
+    }
+  free (list);
+}
+
+/* --------------------- gl_list_iterator_t Data Type --------------------- */
+
+static gl_list_iterator_t
+gl_array_iterator (gl_list_t list)
+{
+  gl_list_iterator_t result;
+
+  result.vtable = list->base.vtable;
+  result.list = list;
+  result.count = list->count;
+  result.p = list->elements + 0;
+  result.q = list->elements + list->count;
+#ifdef lint
+  result.i = 0;
+  result.j = 0;
+#endif
+
+  return result;
+}
+
+static gl_list_iterator_t
+gl_array_iterator_from_to (gl_list_t list, size_t start_index, size_t end_index)
+{
+  gl_list_iterator_t result;
+
+  if (!(start_index <= end_index && end_index <= list->count))
+    /* Invalid arguments.  */
+    abort ();
+  result.vtable = list->base.vtable;
+  result.list = list;
+  result.count = list->count;
+  result.p = list->elements + start_index;
+  result.q = list->elements + end_index;
+#ifdef lint
+  result.i = 0;
+  result.j = 0;
+#endif
+
+  return result;
+}
+
+static bool
+gl_array_iterator_next (gl_list_iterator_t *iterator,
+                        const void **eltp, gl_list_node_t *nodep)
+{
+  gl_list_t list = iterator->list;
+  if (iterator->count != list->count)
+    {
+      if (iterator->count != list->count + 1)
+        /* Concurrent modifications were done on the list.  */
+        abort ();
+      /* The last returned element was removed.  */
+      iterator->count--;
+      iterator->p = (const void **) iterator->p - 1;
+      iterator->q = (const void **) iterator->q - 1;
+    }
+  if (iterator->p < iterator->q)
+    {
+      const void **p = (const void **) iterator->p;
+      *eltp = *p;
+      if (nodep != NULL)
+        *nodep = INDEX_TO_NODE (p - list->elements);
+      iterator->p = p + 1;
+      return true;
+    }
+  else
+    return false;
+}
+
+static void
+gl_array_iterator_free (gl_list_iterator_t *iterator)
+{
+}
+
+/* ---------------------- Sorted gl_list_t Data Type ---------------------- */
+
+static size_t
+gl_array_sortedlist_indexof_from_to (gl_list_t list,
+                                     gl_listelement_compar_fn compar,
+                                     size_t low, size_t high,
+                                     const void *elt)
+{
+  if (!(low <= high && high <= list->count))
+    /* Invalid arguments.  */
+    abort ();
+  if (low < high)
+    {
+      /* At each loop iteration, low < high; for indices < low the values
+         are smaller than ELT; for indices >= high the values are greater
+         than ELT.  So, if the element occurs in the list, it is at
+         low <= position < high.  */
+      do
+        {
+          size_t mid = low + (high - low) / 2; /* low <= mid < high */
+          int cmp = compar (list->elements[mid], elt);
+
+          if (cmp < 0)
+            low = mid + 1;
+          else if (cmp > 0)
+            high = mid;
+          else /* cmp == 0 */
+            {
+              /* We have an element equal to ELT at index MID.  But we need
+                 the minimal such index.  */
+              high = mid;
+              /* At each loop iteration, low <= high and
+                   compar (list->elements[high], elt) == 0,
+                 and we know that the first occurrence of the element is at
+                 low <= position <= high.  */
+              while (low < high)
+                {
+                  size_t mid2 = low + (high - low) / 2; /* low <= mid2 < high */
+                  int cmp2 = compar (list->elements[mid2], elt);
+
+                  if (cmp2 < 0)
+                    low = mid2 + 1;
+                  else if (cmp2 > 0)
+                    /* The list was not sorted.  */
+                    abort ();
+                  else /* cmp2 == 0 */
+                    {
+                      if (mid2 == low)
+                        break;
+                      high = mid2 - 1;
+                    }
+                }
+              return low;
+            }
+        }
+      while (low < high);
+      /* Here low == high.  */
+    }
+  return (size_t)(-1);
+}
+
+static size_t
+gl_array_sortedlist_indexof (gl_list_t list, gl_listelement_compar_fn compar,
+                             const void *elt)
+{
+  return gl_array_sortedlist_indexof_from_to (list, compar, 0, list->count,
+                                              elt);
+}
+
+static gl_list_node_t
+gl_array_sortedlist_search_from_to (gl_list_t list,
+                                    gl_listelement_compar_fn compar,
+                                    size_t low, size_t high,
+                                    const void *elt)
+{
+  size_t index =
+    gl_array_sortedlist_indexof_from_to (list, compar, low, high, elt);
+  return INDEX_TO_NODE (index);
+}
+
+static gl_list_node_t
+gl_array_sortedlist_search (gl_list_t list, gl_listelement_compar_fn compar,
+                            const void *elt)
+{
+  size_t index =
+    gl_array_sortedlist_indexof_from_to (list, compar, 0, list->count, elt);
+  return INDEX_TO_NODE (index);
+}
+
+static gl_list_node_t
+gl_array_sortedlist_nx_add (gl_list_t list, gl_listelement_compar_fn compar,
+                            const void *elt)
+{
+  size_t count = list->count;
+  size_t low = 0;
+  size_t high = count;
+
+  /* At each loop iteration, low <= high; for indices < low the values are
+     smaller than ELT; for indices >= high the values are greater than ELT.  */
+  while (low < high)
+    {
+      size_t mid = low + (high - low) / 2; /* low <= mid < high */
+      int cmp = compar (list->elements[mid], elt);
+
+      if (cmp < 0)
+        low = mid + 1;
+      else if (cmp > 0)
+        high = mid;
+      else /* cmp == 0 */
+        {
+          low = mid;
+          break;
+        }
+    }
+  return gl_array_nx_add_at (list, low, elt);
+}
+
+static bool
+gl_array_sortedlist_remove (gl_list_t list, gl_listelement_compar_fn compar,
+                            const void *elt)
+{
+  size_t index = gl_array_sortedlist_indexof (list, compar, elt);
+  if (index == (size_t)(-1))
+    return false;
+  else
+    return gl_array_remove_at (list, index);
+}
+
+
+const struct gl_list_implementation gl_array_list_implementation =
+  {
+    gl_array_nx_create_empty,
+    gl_array_nx_create,
+    gl_array_size,
+    gl_array_node_value,
+    gl_array_node_nx_set_value,
+    gl_array_next_node,
+    gl_array_previous_node,
+    gl_array_get_at,
+    gl_array_nx_set_at,
+    gl_array_search_from_to,
+    gl_array_indexof_from_to,
+    gl_array_nx_add_first,
+    gl_array_nx_add_last,
+    gl_array_nx_add_before,
+    gl_array_nx_add_after,
+    gl_array_nx_add_at,
+    gl_array_remove_node,
+    gl_array_remove_at,
+    gl_array_remove,
+    gl_array_list_free,
+    gl_array_iterator,
+    gl_array_iterator_from_to,
+    gl_array_iterator_next,
+    gl_array_iterator_free,
+    gl_array_sortedlist_search,
+    gl_array_sortedlist_search_from_to,
+    gl_array_sortedlist_indexof,
+    gl_array_sortedlist_indexof_from_to,
+    gl_array_sortedlist_nx_add,
+    gl_array_sortedlist_remove
+  };
diff --git a/tests/gnu/gl_array_list.h b/tests/gnu/gl_array_list.h
new file mode 100755
index 00000000..a763bca4
--- /dev/null
+++ b/tests/gnu/gl_array_list.h
@@ -0,0 +1,34 @@
+/* Sequential list data type implemented by an array.
+   Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_ARRAY_LIST_H
+#define _GL_ARRAY_LIST_H
+
+#include "gl_list.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const struct gl_list_implementation gl_array_list_implementation;
+#define GL_ARRAY_LIST &gl_array_list_implementation
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_ARRAY_LIST_H */
diff --git a/tests/gnu/gl_array_oset.c b/tests/gnu/gl_array_oset.c
new file mode 100755
index 00000000..a6d4584c
--- /dev/null
+++ b/tests/gnu/gl_array_oset.c
@@ -0,0 +1,357 @@
+/* Ordered set data type implemented by an array.
+   Copyright (C) 2006-2007, 2009-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include "gl_array_oset.h"
+
+#include <stdlib.h>
+
+/* Checked size_t computations.  */
+#include "xsize.h"
+
+/* -------------------------- gl_oset_t Data Type -------------------------- */
+
+/* Concrete gl_oset_impl type, valid for this file only.  */
+struct gl_oset_impl
+{
+  struct gl_oset_impl_base base;
+  /* An array of ALLOCATED elements, of which the first COUNT are used.
+     0 <= COUNT <= ALLOCATED.  */
+  const void **elements;
+  size_t count;
+  size_t allocated;
+};
+
+static gl_oset_t
+gl_array_nx_create_empty (gl_oset_implementation_t implementation,
+                          gl_setelement_compar_fn compar_fn,
+                          gl_setelement_dispose_fn dispose_fn)
+{
+  struct gl_oset_impl *set =
+    (struct gl_oset_impl *) malloc (sizeof (struct gl_oset_impl));
+
+  if (set == NULL)
+    return NULL;
+
+  set->base.vtable = implementation;
+  set->base.compar_fn = compar_fn;
+  set->base.dispose_fn = dispose_fn;
+  set->elements = NULL;
+  set->count = 0;
+  set->allocated = 0;
+
+  return set;
+}
+
+static size_t
+gl_array_size (gl_oset_t set)
+{
+  return set->count;
+}
+
+static size_t
+gl_array_indexof (gl_oset_t set, const void *elt)
+{
+  size_t count = set->count;
+
+  if (count > 0)
+    {
+      gl_setelement_compar_fn compar = set->base.compar_fn;
+      size_t low = 0;
+      size_t high = count;
+
+      /* At each loop iteration, low < high; for indices < low the values
+         are smaller than ELT; for indices >= high the values are greater
+         than ELT.  So, if the element occurs in the list, it is at
+         low <= position < high.  */
+      do
+        {
+          size_t mid = low + (high - low) / 2; /* low <= mid < high */
+          int cmp = (compar != NULL
+                     ? compar (set->elements[mid], elt)
+                     : (set->elements[mid] > elt ? 1 :
+                        set->elements[mid] < elt ? -1 : 0));
+
+          if (cmp < 0)
+            low = mid + 1;
+          else if (cmp > 0)
+            high = mid;
+          else /* cmp == 0 */
+            /* We have an element equal to ELT at index MID.  */
+            return mid;
+        }
+      while (low < high);
+    }
+  return (size_t)(-1);
+}
+
+static bool
+gl_array_search (gl_oset_t set, const void *elt)
+{
+  return gl_array_indexof (set, elt) != (size_t)(-1);
+}
+
+static bool
+gl_array_search_atleast (gl_oset_t set,
+                         gl_setelement_threshold_fn threshold_fn,
+                         const void *threshold,
+                         const void **eltp)
+{
+  size_t count = set->count;
+
+  if (count > 0)
+    {
+      size_t low = 0;
+      size_t high = count;
+
+      /* At each loop iteration, low < high; for indices < low the values are
+         smaller than THRESHOLD; for indices >= high the values are nonexistent.
+         So, if an element >= THRESHOLD occurs in the list, it is at
+         low <= position < high.  */
+      do
+        {
+          size_t mid = low + (high - low) / 2; /* low <= mid < high */
+
+          if (! threshold_fn (set->elements[mid], threshold))
+            low = mid + 1;
+          else
+            {
+              /* We have an element >= THRESHOLD at index MID.  But we need the
+                 minimal such index.  */
+              high = mid;
+              /* At each loop iteration, low <= high and
+                   compar (list->elements[high], value) >= 0,
+                 and we know that the first occurrence of the element is at
+                 low <= position <= high.  */
+              while (low < high)
+                {
+                  size_t mid2 = low + (high - low) / 2; /* low <= mid2 < high */
+
+                  if (! threshold_fn (set->elements[mid2], threshold))
+                    low = mid2 + 1;
+                  else
+                    high = mid2;
+                }
+              *eltp = set->elements[low];
+              return true;
+            }
+        }
+      while (low < high);
+    }
+  return false;
+}
+
+/* Ensure that set->allocated > set->count.
+   Return 0 upon success, -1 upon out-of-memory.  */
+static int
+grow (gl_oset_t set)
+{
+  size_t new_allocated;
+  size_t memory_size;
+  const void **memory;
+
+  new_allocated = xtimes (set->allocated, 2);
+  new_allocated = xsum (new_allocated, 1);
+  memory_size = xtimes (new_allocated, sizeof (const void *));
+  if (size_overflow_p (memory_size))
+    /* Overflow, would lead to out of memory.  */
+    return -1;
+  memory = (const void **) realloc (set->elements, memory_size);
+  if (memory == NULL)
+    /* Out of memory.  */
+    return -1;
+  set->elements = memory;
+  set->allocated = new_allocated;
+  return 0;
+}
+
+/* Add the given element ELT at the given position,
+   0 <= position <= gl_oset_size (set).
+   Return 1 upon success, -1 upon out-of-memory.  */
+static inline int
+gl_array_nx_add_at (gl_oset_t set, size_t position, const void *elt)
+{
+  size_t count = set->count;
+  const void **elements;
+  size_t i;
+
+  if (count == set->allocated)
+    if (grow (set) < 0)
+      return -1;
+  elements = set->elements;
+  for (i = count; i > position; i--)
+    elements[i] = elements[i - 1];
+  elements[position] = elt;
+  set->count = count + 1;
+  return 1;
+}
+
+/* Remove the element at the given position,
+   0 <= position < gl_oset_size (set).  */
+static inline void
+gl_array_remove_at (gl_oset_t set, size_t position)
+{
+  size_t count = set->count;
+  const void **elements;
+  size_t i;
+
+  elements = set->elements;
+  if (set->base.dispose_fn != NULL)
+    set->base.dispose_fn (elements[position]);
+  for (i = position + 1; i < count; i++)
+    elements[i - 1] = elements[i];
+  set->count = count - 1;
+}
+
+static int
+gl_array_nx_add (gl_oset_t set, const void *elt)
+{
+  size_t count = set->count;
+  size_t low = 0;
+
+  if (count > 0)
+    {
+      gl_setelement_compar_fn compar = set->base.compar_fn;
+      size_t high = count;
+
+      /* At each loop iteration, low < high; for indices < low the values
+         are smaller than ELT; for indices >= high the values are greater
+         than ELT.  So, if the element occurs in the list, it is at
+         low <= position < high.  */
+      do
+        {
+          size_t mid = low + (high - low) / 2; /* low <= mid < high */
+          int cmp = (compar != NULL
+                     ? compar (set->elements[mid], elt)
+                     : (set->elements[mid] > elt ? 1 :
+                        set->elements[mid] < elt ? -1 : 0));
+
+          if (cmp < 0)
+            low = mid + 1;
+          else if (cmp > 0)
+            high = mid;
+          else /* cmp == 0 */
+            return false;
+        }
+      while (low < high);
+    }
+  return gl_array_nx_add_at (set, low, elt);
+}
+
+static bool
+gl_array_remove (gl_oset_t set, const void *elt)
+{
+  size_t index = gl_array_indexof (set, elt);
+  if (index != (size_t)(-1))
+    {
+      gl_array_remove_at (set, index);
+      return true;
+    }
+  else
+    return false;
+}
+
+static void
+gl_array_free (gl_oset_t set)
+{
+  if (set->elements != NULL)
+    {
+      if (set->base.dispose_fn != NULL)
+        {
+          size_t count = set->count;
+
+          if (count > 0)
+            {
+              gl_setelement_dispose_fn dispose = set->base.dispose_fn;
+              const void **elements = set->elements;
+
+              do
+                dispose (*elements++);
+              while (--count > 0);
+            }
+        }
+      free (set->elements);
+    }
+  free (set);
+}
+
+/* --------------------- gl_oset_iterator_t Data Type --------------------- */
+
+static gl_oset_iterator_t
+gl_array_iterator (gl_oset_t set)
+{
+  gl_oset_iterator_t result;
+
+  result.vtable = set->base.vtable;
+  result.set = set;
+  result.count = set->count;
+  result.p = set->elements + 0;
+  result.q = set->elements + set->count;
+#ifdef lint
+  result.i = 0;
+  result.j = 0;
+#endif
+
+  return result;
+}
+
+static bool
+gl_array_iterator_next (gl_oset_iterator_t *iterator, const void **eltp)
+{
+  gl_oset_t set = iterator->set;
+  if (iterator->count != set->count)
+    {
+      if (iterator->count != set->count + 1)
+        /* Concurrent modifications were done on the set.  */
+        abort ();
+      /* The last returned element was removed.  */
+      iterator->count--;
+      iterator->p = (const void **) iterator->p - 1;
+      iterator->q = (const void **) iterator->q - 1;
+    }
+  if (iterator->p < iterator->q)
+    {
+      const void **p = (const void **) iterator->p;
+      *eltp = *p;
+      iterator->p = p + 1;
+      return true;
+    }
+  else
+    return false;
+}
+
+static void
+gl_array_iterator_free (gl_oset_iterator_t *iterator)
+{
+}
+
+
+const struct gl_oset_implementation gl_array_oset_implementation =
+  {
+    gl_array_nx_create_empty,
+    gl_array_size,
+    gl_array_search,
+    gl_array_search_atleast,
+    gl_array_nx_add,
+    gl_array_remove,
+    gl_array_free,
+    gl_array_iterator,
+    gl_array_iterator_next,
+    gl_array_iterator_free
+  };
diff --git a/tests/gnu/gl_array_oset.h b/tests/gnu/gl_array_oset.h
new file mode 100755
index 00000000..190a96bd
--- /dev/null
+++ b/tests/gnu/gl_array_oset.h
@@ -0,0 +1,34 @@
+/* Ordered set data type implemented by an array.
+   Copyright (C) 2006, 2009, 2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef _GL_ARRAY_OSET_H
+#define _GL_ARRAY_OSET_H
+
+#include "gl_oset.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern const struct gl_oset_implementation gl_array_oset_implementation;
+#define GL_ARRAY_OSET &gl_array_oset_implementation
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GL_ARRAY_OSET_H */
diff --git a/tests/gnu/ignore-value.h b/tests/gnu/ignore-value.h
new file mode 100755
index 00000000..2eb6918d
--- /dev/null
+++ b/tests/gnu/ignore-value.h
@@ -0,0 +1,37 @@
+/* ignore a function return without a compiler warning
+
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Jim Meyering.  */
+
+/* Use these functions to avoid a warning when using a function declared with
+   gcc's warn_unused_result attribute, but for which you really do want to
+   ignore the result.  Traditionally, people have used a "(void)" cast to
+   indicate that a function's return value is deliberately unused.  However,
+   if the function is declared with __attribute__((warn_unused_result)),
+   gcc issues a warning even with the cast.
+
+   Caution: most of the time, you really should heed gcc's warning, and
+   check the return value.  However, in those exceptional cases in which
+   you're sure you know what you're doing, use this function.
+
+   For the record, here's one of the ignorable warnings:
+   "copy.c:233: warning: ignoring return value of 'fchown',
+   declared with attribute warn_unused_result".  */
+
+static inline void ignore_value (int i) { (void) i; }
+static inline void ignore_ptr (void* p) { (void) p; }
+/* FIXME: what about aggregate types? */
diff --git a/tests/gnu/init.sh b/tests/gnu/init.sh
new file mode 100755
index 00000000..3154f595
--- /dev/null
+++ b/tests/gnu/init.sh
@@ -0,0 +1,345 @@
+# source this file; set up for tests
+
+# Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# Using this file in a test
+# =========================
+#
+# The typical skeleton of a test looks like this:
+#
+#   #!/bin/sh
+#   : ${srcdir=.}
+#   . "$srcdir/init.sh"; path_prepend_ .
+#   Execute some commands.
+#   Note that these commands are executed in a subdirectory, therefore you
+#   need to prepend "../" to relative filenames in the build directory.
+#   Set the exit code 0 for success, 77 for skipped, or 1 or other for failure.
+#   Use the skip_ and fail_ functions to print a diagnostic and then exit
+#   with the corresponding exit code.
+#   Exit $?
+
+# Executing a test that uses this file
+# ====================================
+#
+# Running a single test:
+#   $ make check TESTS=test-foo.sh
+#
+# Running a single test, with verbose output:
+#   $ make check TESTS=test-foo.sh VERBOSE=yes
+#
+# Running a single test, with single-stepping:
+#   1. Go into a sub-shell:
+#   $ bash
+#   2. Set relevant environment variables from TESTS_ENVIRONMENT in the
+#      Makefile:
+#   $ export srcdir=../../tests # this is an example
+#   3. Execute the commands from the test, copy&pasting them one by one:
+#   $ . "$srcdir/init.sh"; path_prepend_ .
+#   ...
+#   4. Finally
+#   $ exit
+
+# We require $(...) support unconditionally.
+# We require a few additional shell features only when $EXEEXT is nonempty,
+# in order to support automatic $EXEEXT emulation:
+# - hyphen-containing alias names
+# - we prefer to use ${var#...} substitution, rather than having
+#   to work around lack of support for that feature.
+# The following code attempts to find a shell with support for these features
+# and re-exec's it.  If not, it skips the current test.
+
+gl_shell_test_script_='
+test $(echo y) = y || exit 1
+test -z "$EXEEXT" && exit 0
+shopt -s expand_aliases
+alias a-b="echo zoo"
+v=abx
+     test ${v%x} = ab \
+  && test ${v#a} = bx \
+  && test $(a-b) = zoo
+'
+
+if test "x$1" = "x--no-reexec"; then
+  shift
+else
+  for re_shell_ in "${CONFIG_SHELL:-no_shell}" /bin/sh bash dash zsh pdksh fail
+  do
+    test "$re_shell_" = no_shell && continue
+    test "$re_shell_" = fail && skip_ failed to find an adequate shell
+    if "$re_shell_" -c "$gl_shell_test_script_" 2>/dev/null; then
+      exec "$re_shell_" "$0" --no-reexec "$@"
+      echo "$ME_: exec failed" 1>&2
+      exit 127
+    fi
+  done
+fi
+
+test -n "$EXEEXT" && shopt -s expand_aliases
+
+# We use a trap below for cleanup.  This requires us to go through
+# hoops to get the right exit status transported through the handler.
+# So use `Exit STATUS' instead of `exit STATUS' inside of the tests.
+# Turn off errexit here so that we don't trip the bug with OSF1/Tru64
+# sh inside this function.
+Exit () { set +e; (exit $1); exit $1; }
+
+fail_() { echo "$ME_: failed test: $@" 1>&2; Exit 1; }
+skip_() { echo "$ME_: skipped test: $@" 1>&2; Exit 77; }
+
+# This is a stub function that is run upon trap (upon regular exit and
+# interrupt).  Override it with a per-test function, e.g., to unmount
+# a partition, or to undo any other global state changes.
+cleanup_() { :; }
+
+if ( diff --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { diff -u "$@"; }
+elif ( cmp --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { cmp -s "$@"; }
+else
+  compare() { cmp "$@"; }
+fi
+
+# An arbitrary prefix to help distinguish test directories.
+testdir_prefix_() { printf gt; }
+
+# Run the user-overridable cleanup_ function, remove the temporary
+# directory and exit with the incoming value of $?.
+remove_tmp_()
+{
+  __st=$?
+  cleanup_
+  # cd out of the directory we're about to remove
+  cd "$initial_cwd_" || cd / || cd /tmp
+  chmod -R u+rwx "$test_dir_"
+  # If removal fails and exit status was to be 0, then change it to 1.
+  rm -rf "$test_dir_" || { test $__st = 0 && __st=1; }
+  exit $__st
+}
+
+# Given a directory name, DIR, if every entry in it that matches *.exe
+# contains only the specified bytes (see the case stmt below), then print
+# a space-separated list of those names and return 0.  Otherwise, don't
+# print anything and return 1.  Naming constraints apply also to DIR.
+find_exe_basenames_()
+{
+  feb_dir_=$1
+  feb_fail_=0
+  feb_result_=
+  feb_sp_=
+  for feb_file_ in $feb_dir_/*.exe; do
+    case $feb_file_ in
+      *[!-a-zA-Z/0-9_.+]*) feb_fail_=1; break;;
+      *) # Remove leading file name components as well as the .exe suffix.
+         feb_file_=${feb_file_##*/}
+         feb_file_=${feb_file_%.exe}
+         feb_result_="$feb_result_$feb_sp_$feb_file_";;
+    esac
+    feb_sp_=' '
+  done
+  test $feb_fail_ = 0 && printf %s "$feb_result_"
+  return $feb_fail_
+}
+
+# Consider the files in directory, $1.
+# For each file name of the form PROG.exe, create an alias named
+# PROG that simply invokes PROG.exe, then return 0.  If any selected
+# file name or the directory name, $1, contains an unexpected character,
+# define no function and return 1.
+create_exe_shims_()
+{
+  case $EXEEXT in
+    '') return 0 ;;
+    .exe) ;;
+    *) echo "$0: unexpected \$EXEEXT value: $EXEEXT" 1>&2; return 1 ;;
+  esac
+
+  base_names_=`find_exe_basenames_ $1` \
+    || { echo "$0 (exe_shim): skipping directory: $1" 1>&2; return 1; }
+
+  if test -n "$base_names_"; then
+    for base_ in $base_names_; do
+      alias "$base_"="$base_$EXEEXT"
+    done
+  fi
+
+  return 0
+}
+
+# Use this function to prepend to PATH an absolute name for each
+# specified, possibly-$initial_cwd_-relative, directory.
+path_prepend_()
+{
+  while test $# != 0; do
+    path_dir_=$1
+    case $path_dir_ in
+      '') fail_ "invalid path dir: '$1'";;
+      /*) abs_path_dir_=$path_dir_;;
+      *) abs_path_dir_=`cd "$initial_cwd_/$path_dir_" && echo "$PWD"` \
+           || fail_ "invalid path dir: $path_dir_";;
+    esac
+    case $abs_path_dir_ in
+      *:*) fail_ "invalid path dir: '$abs_path_dir_'";;
+    esac
+    PATH="$abs_path_dir_:$PATH"
+
+    # Create an alias, FOO, for each FOO.exe in this directory.
+    create_exe_shims_ "$abs_path_dir_" \
+      || fail_ "something failed (above): $abs_path_dir_"
+    shift
+  done
+  export PATH
+}
+
+setup_()
+{
+  test "$VERBOSE" = yes && set -x
+
+  initial_cwd_=$PWD
+  ME_=`expr "./$0" : '.*/\(.*\)$'`
+
+  pfx_=`testdir_prefix_`
+  test_dir_=`mktempd_ "$initial_cwd_" "$pfx_-$ME_.XXXX"` \
+    || fail_ "failed to create temporary directory in $initial_cwd_"
+  cd "$test_dir_"
+
+  # This pair of trap statements ensures that the temporary directory,
+  # $test_dir_, is removed upon exit as well as upon catchable signal.
+  trap remove_tmp_ 0
+  trap 'Exit $?' 1 2 13 15
+}
+
+# Create a temporary directory, much like mktemp -d does.
+# Written by Jim Meyering.
+#
+# Usage: mktempd_ /tmp phoey.XXXXXXXXXX
+#
+# First, try to use the mktemp program.
+# Failing that, we'll roll our own mktemp-like function:
+#  - try to get random bytes from /dev/urandom
+#  - failing that, generate output from a combination of quickly-varying
+#      sources and gzip.  Ignore non-varying gzip header, and extract
+#      "random" bits from there.
+#  - given those bits, map to file-name bytes using tr, and try to create
+#      the desired directory.
+#  - make only $MAX_TRIES_ attempts
+
+# Helper function.  Print $N pseudo-random bytes from a-zA-Z0-9.
+rand_bytes_()
+{
+  n_=$1
+
+  # Maybe try openssl rand -base64 $n_prime_|tr '+/=\012' abcd first?
+  # But if they have openssl, they probably have mktemp, too.
+
+  chars_=abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789
+  dev_rand_=/dev/urandom
+  if test -r "$dev_rand_"; then
+    # Note: 256-length($chars_) == 194; 3 copies of $chars_ is 186 + 8 = 194.
+    dd ibs=$n_ count=1 if=$dev_rand_ 2>/dev/null \
+      | tr -c $chars_ 01234567$chars_$chars_$chars_
+    return
+  fi
+
+  n_plus_50_=`expr $n_ + 50`
+  cmds_='date; date +%N; free; who -a; w; ps auxww; ps ef; netstat -n'
+  data_=` (eval "$cmds_") 2>&1 | gzip `
+
+  # Ensure that $data_ has length at least 50+$n_
+  while :; do
+    len_=`echo "$data_"|wc -c`
+    test $n_plus_50_ -le $len_ && break;
+    data_=` (echo "$data_"; eval "$cmds_") 2>&1 | gzip `
+  done
+
+  echo "$data_" \
+    | dd bs=1 skip=50 count=$n_ 2>/dev/null \
+    | tr -c $chars_ 01234567$chars_$chars_$chars_
+}
+
+mktempd_()
+{
+  case $# in
+  2);;
+  *) fail_ "Usage: $ME DIR TEMPLATE";;
+  esac
+
+  destdir_=$1
+  template_=$2
+
+  MAX_TRIES_=4
+
+  # Disallow any trailing slash on specified destdir:
+  # it would subvert the post-mktemp "case"-based destdir test.
+  case $destdir_ in
+  /) ;;
+  */) fail_ "invalid destination dir: remove trailing slash(es)";;
+  esac
+
+  case $template_ in
+  *XXXX) ;;
+  *) fail_ "invalid template: $template_ (must have a suffix of at least 4 X's)";;
+  esac
+
+  fail=0
+
+  # First, try to use mktemp.
+  d=`env -u TMPDIR mktemp -d -t -p "$destdir_" "$template_" 2>/dev/null` \
+    || fail=1
+
+  # The resulting name must be in the specified directory.
+  case $d in "$destdir_"*);; *) fail=1;; esac
+
+  # It must have created the directory.
+  test -d "$d" || fail=1
+
+  # It must have 0700 permissions.  Handle sticky "S" bits.
+  perms=`ls -dgo "$d" 2>/dev/null|tr S -` || fail=1
+  case $perms in drwx------*) ;; *) fail=1;; esac
+
+  test $fail = 0 && {
+    echo "$d"
+    return
+  }
+
+  # If we reach this point, we'll have to create a directory manually.
+
+  # Get a copy of the template without its suffix of X's.
+  base_template_=`echo "$template_"|sed 's/XX*$//'`
+
+  # Calculate how many X's we've just removed.
+  template_length_=`echo "$template_" | wc -c`
+  nx_=`echo "$base_template_" | wc -c`
+  nx_=`expr $template_length_ - $nx_`
+
+  err_=
+  i_=1
+  while :; do
+    X_=`rand_bytes_ $nx_`
+    candidate_dir_="$destdir_/$base_template_$X_"
+    err_=`mkdir -m 0700 "$candidate_dir_" 2>&1` \
+      && { echo "$candidate_dir_"; return; }
+    test $MAX_TRIES_ -le $i_ && break;
+    i_=`expr $i_ + 1`
+  done
+  fail_ "$err_"
+}
+
+# If you want to override the testdir_prefix_ function,
+# or to add more utility functions, use this file.
+test -f "$srcdir/init.cfg" \
+  && . "$srcdir/init.cfg"
+
+setup_ "$@"
diff --git a/tests/gnu/link.c b/tests/gnu/link.c
new file mode 100755
index 00000000..b9635e5a
--- /dev/null
+++ b/tests/gnu/link.c
@@ -0,0 +1,203 @@
+/* Emulate link on platforms that lack it, namely native Windows platforms.
+
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#if !HAVE_LINK
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+
+#  define WIN32_LEAN_AND_MEAN
+#  include <windows.h>
+
+/* CreateHardLink was introduced only in Windows 2000.  */
+typedef BOOL (WINAPI * CreateHardLinkFuncType) (LPCTSTR lpFileName,
+                                                LPCTSTR lpExistingFileName,
+                                                LPSECURITY_ATTRIBUTES lpSecurityAttributes);
+static CreateHardLinkFuncType CreateHardLinkFunc = NULL;
+static BOOL initialized = FALSE;
+
+static void
+initialize (void)
+{
+  HMODULE kernel32 = GetModuleHandle ("kernel32.dll");
+  if (kernel32 != NULL)
+    {
+      CreateHardLinkFunc =
+        (CreateHardLinkFuncType) GetProcAddress (kernel32, "CreateHardLinkA");
+    }
+  initialized = TRUE;
+}
+
+int
+link (const char *file1, const char *file2)
+{
+  char *dir;
+  size_t len1 = strlen (file1);
+  size_t len2 = strlen (file2);
+  if (!initialized)
+    initialize ();
+  if (CreateHardLinkFunc == NULL)
+    {
+      /* System does not support hard links.  */
+      errno = EPERM;
+      return -1;
+    }
+  /* Reject trailing slashes on non-directories; mingw does not
+     support hard-linking directories.  */
+  if ((len1 && (file1[len1 - 1] == '/' || file1[len1 - 1] == '\\'))
+      || (len2 && (file2[len2 - 1] == '/' || file2[len2 - 1] == '\\')))
+    {
+      struct stat st;
+      if (stat (file1, &st) == 0 && S_ISDIR (st.st_mode))
+        errno = EPERM;
+      else
+        errno = ENOTDIR;
+      return -1;
+    }
+  /* CreateHardLink("b/.","a",NULL) creates file "b", so we must check
+     that dirname(file2) exists.  */
+  dir = strdup (file2);
+  if (!dir)
+    return -1;
+  {
+    struct stat st;
+    char *p = strchr (dir, '\0');
+    while (dir < p && (*--p != '/' && *p != '\\'));
+    *p = '\0';
+    if (p != dir && stat (dir, &st) == -1)
+      {
+        int saved_errno = errno;
+        free (dir);
+        errno = saved_errno;
+        return -1;
+      }
+    free (dir);
+  }
+  /* Now create the link.  */
+  if (CreateHardLinkFunc (file2, file1, NULL) == 0)
+    {
+      /* It is not documented which errors CreateHardLink() can produce.
+       * The following conversions are based on tests on a Windows XP SP2
+       * system. */
+      DWORD err = GetLastError ();
+      switch (err)
+        {
+        case ERROR_ACCESS_DENIED:
+          errno = EACCES;
+          break;
+
+        case ERROR_INVALID_FUNCTION:    /* fs does not support hard links */
+          errno = EPERM;
+          break;
+
+        case ERROR_NOT_SAME_DEVICE:
+          errno = EXDEV;
+          break;
+
+        case ERROR_PATH_NOT_FOUND:
+        case ERROR_FILE_NOT_FOUND:
+          errno = ENOENT;
+          break;
+
+        case ERROR_INVALID_PARAMETER:
+          errno = ENAMETOOLONG;
+          break;
+
+        case ERROR_TOO_MANY_LINKS:
+          errno = EMLINK;
+          break;
+
+        case ERROR_ALREADY_EXISTS:
+          errno = EEXIST;
+          break;
+
+        default:
+          errno = EIO;
+        }
+      return -1;
+    }
+
+  return 0;
+}
+
+# else /* !Windows */
+
+#  error "This platform lacks a link function, and Gnulib doesn't provide a replacement. This is a bug in Gnulib."
+
+# endif /* !Windows */
+#else /* HAVE_LINK */
+
+# undef link
+
+/* Create a hard link from FILE1 to FILE2, working around platform bugs.  */
+int
+rpl_link (char const *file1, char const *file2)
+{
+  /* Reject trailing slashes on non-directories.  */
+  size_t len1 = strlen (file1);
+  size_t len2 = strlen (file2);
+  if ((len1 && file1[len1 - 1] == '/')
+      || (len2 && file2[len2 - 1] == '/'))
+    {
+      /* Let link() decide whether hard-linking directories is legal.
+         If stat() fails, then link() should fail for the same reason
+         (although on Solaris 9, link("file/","oops") mistakenly
+         succeeds); if stat() succeeds, require a directory.  */
+      struct stat st;
+      if (stat (file1, &st))
+        return -1;
+      if (!S_ISDIR (st.st_mode))
+        {
+          errno = ENOTDIR;
+          return -1;
+        }
+    }
+  else
+    {
+      /* Fix Cygwin 1.5.x bug where link("a","b/.") creates file "b".  */
+      char *dir = strdup (file2);
+      struct stat st;
+      char *p;
+      if (!dir)
+        return -1;
+      /* We already know file2 does not end in slash.  Strip off the
+         basename, then check that the dirname exists.  */
+      p = strrchr (dir, '/');
+      if (p)
+        {
+          *p = '\0';
+          if (stat (dir, &st) == -1)
+            {
+              int saved_errno = errno;
+              free (dir);
+              errno = saved_errno;
+              return -1;
+            }
+        }
+      free (dir);
+    }
+  return link (file1, file2);
+}
+#endif /* HAVE_LINK */
diff --git a/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.mo b/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.mo
new file mode 100755
index 00000000..87e97e1e
--- /dev/null
+++ b/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.mo
diff --git a/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.po b/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.po
new file mode 100755
index 00000000..1ea251f4
--- /dev/null
+++ b/tests/gnu/locale/fr/LC_MESSAGES/test-quotearg.po
@@ -0,0 +1,20 @@
+# Message catalog that maps the ASCII replacements for single-quote characters
+# to real single-quote characters.
+# The header entry is commented out on purpose, so that gettext() performs no
+# no character set conversion from the PO file's encoding to the locale
+# encoding. This allows us to use the same PO file in various locales.
+#msgid ""
+#msgstr ""
+#"Project-Id-Version: GNU gnulib\n"
+#"PO-Revision-Date: 2009-01-26 01:02+01:00\n"
+#"Last-Translator: Eric Blake <ebb9@byu.net>\n"
+#"Language-Team: Undetermined <und@li.org>\n"
+#"MIME-Version: 1.0\n"
+#"Content-Type: text/plain; charset=UTF-8\n"
+#"Content-Transfer-Encoding: 8bit\n"
+
+msgid "`"
+msgstr "\302\253"
+
+msgid "'"
+msgstr "\302\273"
diff --git a/tests/gnu/macros.h b/tests/gnu/macros.h
new file mode 100755
index 00000000..11db5a8a
--- /dev/null
+++ b/tests/gnu/macros.h
@@ -0,0 +1,64 @@
+/* Common macros used by gnulib tests.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+/* This file contains macros that are used by many gnulib tests.
+   Put here only frequently used macros, say, used by 10 tests or more.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/* Define ASSERT_STREAM before including this file if ASSERT must
+   target a stream other than stderr.  */
+#ifndef ASSERT_STREAM
+# define ASSERT_STREAM stderr
+#endif
+
+/* ASSERT (condition);
+   verifies that the specified condition is fulfilled.  If not, a message
+   is printed to ASSERT_STREAM if defined (defaulting to stderr if
+   undefined) and the program is terminated with an error code.
+
+   This macro has the following properties:
+     - The programmer specifies the expected condition, not the failure
+       condition.  This simplifies thinking.
+     - The condition is tested always, regardless of compilation flags.
+       (Unlike the macro from <assert.h>.)
+     - On Unix platforms, the tester can debug the test program with a
+       debugger (provided core dumps are enabled: "ulimit -c unlimited").
+     - For the sake of platforms where no debugger is available (such as
+       some mingw systems), an error message is printed on the error
+       stream that includes the source location of the ASSERT invocation.
+ */
+#define ASSERT(expr) \
+  do                                                                         \
+    {                                                                        \
+      if (!(expr))                                                           \
+        {                                                                    \
+          fprintf (ASSERT_STREAM, "%s:%d: assertion failed\n",               \
+                   __FILE__, __LINE__);                                      \
+          fflush (ASSERT_STREAM);                                            \
+          abort ();                                                          \
+        }                                                                    \
+    }                                                                        \
+  while (0)
+
+/* SIZEOF (array)
+   returns the number of elements of an array.  It works for arrays that are
+   declared outside functions and for local variables of array type.  It does
+   *not* work for function parameters of array type, because they are actually
+   parameters of pointer type.  */
+#define SIZEOF(array) (sizeof (array) / sizeof (array[0]))
diff --git a/tests/gnu/nan.h b/tests/gnu/nan.h
new file mode 100755
index 00000000..611eed3e
--- /dev/null
+++ b/tests/gnu/nan.h
@@ -0,0 +1,60 @@
+/* Macros for not-a-number.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+
+/* NaNf () returns a 'float' not-a-number.  */
+
+/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0.  */
+#ifdef __DECC
+static float
+NaNf ()
+{
+  static float zero = 0.0f;
+  return zero / zero;
+}
+#else
+# define NaNf() (0.0f / 0.0f)
+#endif
+
+
+/* NaNd () returns a 'double' not-a-number.  */
+
+/* The Compaq (ex-DEC) C 6.4 compiler chokes on the expression 0.0 / 0.0.  */
+#ifdef __DECC
+static double
+NaNd ()
+{
+  static double zero = 0.0;
+  return zero / zero;
+}
+#else
+# define NaNd() (0.0 / 0.0)
+#endif
+
+
+/* NaNl () returns a 'long double' not-a-number.  */
+
+/* On Irix 6.5, gcc 3.4.3 can't compute compile-time NaN, and needs the
+   runtime type conversion.  */
+#ifdef __sgi
+static long double NaNl ()
+{
+  double zero = 0.0;
+  return zero / zero;
+}
+#else
+# define NaNl() (0.0L / 0.0L)
+#endif
diff --git a/tests/gnu/obstack_printf.c b/tests/gnu/obstack_printf.c
new file mode 100755
index 00000000..b8e1114c
--- /dev/null
+++ b/tests/gnu/obstack_printf.c
@@ -0,0 +1,92 @@
+/* Formatted output to obstacks.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <stdio.h>
+
+#include "obstack.h"
+#include "vasnprintf.h"
+
+#include <errno.h>
+#include <stdarg.h>
+#include <stdlib.h>
+
+/* Grow an obstack with formatted output.  Return the number of bytes
+   added to OBS.  No trailing nul byte is added, and the object should
+   be closed with obstack_finish before use.
+
+   Upon memory allocation error, call obstack_alloc_failed_handler.
+   Upon other error, return -1.  */
+int
+obstack_printf (struct obstack *obs, const char *format, ...)
+{
+  va_list args;
+  int result;
+
+  va_start (args, format);
+  result = obstack_vprintf (obs, format, args);
+  va_end (args);
+  return result;
+}
+
+/* Grow an obstack with formatted output.  Return the number of bytes
+   added to OBS.  No trailing nul byte is added, and the object should
+   be closed with obstack_finish before use.
+
+   Upon memory allocation error, call obstack_alloc_failed_handler.
+   Upon other error, return -1.  */
+int
+obstack_vprintf (struct obstack *obs, const char *format, va_list args)
+{
+  /* If we are close to the end of the current obstack chunk, use a
+     stack-allocated buffer and copy, to reduce the likelihood of a
+     small-size malloc.  Otherwise, print directly into the
+     obstack.  */
+  enum { CUTOFF = 1024 };
+  char buf[CUTOFF];
+  char *base = obstack_next_free (obs);
+  size_t len = obstack_room (obs);
+  char *str;
+
+  if (len < CUTOFF)
+    {
+      base = buf;
+      len = CUTOFF;
+    }
+  str = vasnprintf (base, &len, format, args);
+  if (!str)
+    {
+      if (errno == ENOMEM)
+        obstack_alloc_failed_handler ();
+      return -1;
+    }
+  if (str == base && str != buf)
+    /* The output was already computed in place, but we need to
+       account for its size.  */
+    obstack_blank_fast (obs, len);
+  else
+    {
+      /* The output exceeded available obstack space or we used buf;
+         copy the resulting string.  */
+      obstack_grow (obs, str, len);
+      if (str != buf)
+        free (str);
+    }
+  return len;
+}
diff --git a/tests/gnu/putenv.c b/tests/gnu/putenv.c
new file mode 100755
index 00000000..030f5675
--- /dev/null
+++ b/tests/gnu/putenv.c
@@ -0,0 +1,132 @@
+/* Copyright (C) 1991, 1994, 1997-1998, 2000, 2003-2010 Free Software
+   Foundation, Inc.
+
+   NOTE: The canonical source of this file is maintained with the GNU C
+   Library.  Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+
+   This program is free software: you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 3 of the License, or any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <stdlib.h>
+
+#include <stddef.h>
+
+/* Include errno.h *after* sys/types.h to work around header problems
+   on AIX 3.2.5.  */
+#include <errno.h>
+#ifndef __set_errno
+# define __set_errno(ev) ((errno) = (ev))
+#endif
+
+#include <string.h>
+#include <unistd.h>
+
+#if HAVE_GNU_LD
+# define environ __environ
+#else
+extern char **environ;
+#endif
+
+#if _LIBC
+/* This lock protects against simultaneous modifications of `environ'.  */
+# include <bits/libc-lock.h>
+__libc_lock_define_initialized (static, envlock)
+# define LOCK   __libc_lock_lock (envlock)
+# define UNLOCK __libc_lock_unlock (envlock)
+#else
+# define LOCK
+# define UNLOCK
+#endif
+
+static int
+_unsetenv (const char *name)
+{
+  size_t len;
+  char **ep;
+
+  if (name == NULL || *name == '\0' || strchr (name, '=') != NULL)
+    {
+      __set_errno (EINVAL);
+      return -1;
+    }
+
+  len = strlen (name);
+
+  LOCK;
+
+  ep = environ;
+  while (*ep != NULL)
+    if (!strncmp (*ep, name, len) && (*ep)[len] == '=')
+      {
+        /* Found it.  Remove this pointer by moving later ones back.  */
+        char **dp = ep;
+
+        do
+          dp[0] = dp[1];
+        while (*dp++);
+        /* Continue the loop in case NAME appears again.  */
+      }
+    else
+      ++ep;
+
+  UNLOCK;
+
+  return 0;
+}
+
+
+/* Put STRING, which is of the form "NAME=VALUE", in the environment.
+   If STRING contains no `=', then remove STRING from the environment.  */
+int
+putenv (char *string)
+{
+  const char *const name_end = strchr (string, '=');
+  register size_t size;
+  register char **ep;
+
+  if (name_end == NULL)
+    {
+      /* Remove the variable from the environment.  */
+      return _unsetenv (string);
+    }
+
+  size = 0;
+  for (ep = environ; *ep != NULL; ++ep)
+    if (!strncmp (*ep, string, name_end - string) &&
+        (*ep)[name_end - string] == '=')
+      break;
+    else
+      ++size;
+
+  if (*ep == NULL)
+    {
+      static char **last_environ = NULL;
+      char **new_environ = (char **) malloc ((size + 2) * sizeof (char *));
+      if (new_environ == NULL)
+        return -1;
+      (void) memcpy ((void *) new_environ, (void *) environ,
+                     size * sizeof (char *));
+      new_environ[size] = (char *) string;
+      new_environ[size + 1] = NULL;
+      free (last_environ);
+      last_environ = new_environ;
+      environ = new_environ;
+    }
+  else
+    *ep = string;
+
+  return 0;
+}
diff --git a/tests/gnu/signature.h b/tests/gnu/signature.h
new file mode 100755
index 00000000..6e15c43a
--- /dev/null
+++ b/tests/gnu/signature.h
@@ -0,0 +1,48 @@
+/* Macro for checking that a function declaration is compliant.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef SIGNATURE_CHECK
+
+/* Check that the function FN takes the specified arguments ARGS with
+   a return type of RET.  This header is designed to be included after
+   <config.h> and the one system header that is supposed to contain
+   the function being checked, but prior to any other system headers
+   that are necessary for the unit test.  Therefore, this file does
+   not include any system headers, nor reference anything outside of
+   the macro arguments.  For an example, if foo.h should provide:
+
+   extern int foo (char, float);
+
+   then the unit test named test-foo.c would start out with:
+
+   #include <config.h>
+   #include <foo.h>
+   #include "signature.h"
+   SIGNATURE_CHECK (foo, int, (char, float));
+   #include <other.h>
+   ...
+*/
+# define SIGNATURE_CHECK(fn, ret, args) \
+  SIGNATURE_CHECK1 (fn, ret, args, __LINE__)
+
+/* Necessary to allow multiple SIGNATURE_CHECK lines in a unit test.
+   Note that the checks must not occupy the same line.  */
+# define SIGNATURE_CHECK1(fn, ret, args, id) \
+  SIGNATURE_CHECK2 (fn, ret, args, id) /* macroexpand line */
+# define SIGNATURE_CHECK2(fn, ret, args, id) \
+  static ret (* _GL_UNUSED signature_check ## id) args = fn
+
+#endif /* SIGNATURE_CHECK */
diff --git a/tests/gnu/strdup.c b/tests/gnu/strdup.c
new file mode 100755
index 00000000..4b1794ec
--- /dev/null
+++ b/tests/gnu/strdup.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1996, 1997, 1998, 2002, 2003, 2004, 2006, 2007, 2009,
+   2010 Free Software Foundation, Inc.
+
+   This file is part of the GNU C Library.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along
+   with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef _LIBC
+# include <config.h>
+#endif
+
+/* Get specification.  */
+#include <string.h>
+
+#include <stdlib.h>
+
+#undef __strdup
+#ifdef _LIBC
+# undef strdup
+#endif
+
+#ifndef weak_alias
+# define __strdup strdup
+#endif
+
+/* Duplicate S, returning an identical malloc'd string.  */
+char *
+__strdup (const char *s)
+{
+  size_t len = strlen (s) + 1;
+  void *new = malloc (len);
+
+  if (new == NULL)
+    return NULL;
+
+  return (char *) memcpy (new, s, len);
+}
+#ifdef libc_hidden_def
+libc_hidden_def (__strdup)
+#endif
+#ifdef weak_alias
+weak_alias (__strdup, strdup)
+#endif
diff --git a/tests/gnu/symlink.c b/tests/gnu/symlink.c
new file mode 100755
index 00000000..40bbb804
--- /dev/null
+++ b/tests/gnu/symlink.c
@@ -0,0 +1,57 @@
+/* Stub for symlink().
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <unistd.h>
+
+#include <errno.h>
+#include <string.h>
+#include <sys/stat.h>
+
+
+#if HAVE_SYMLINK
+
+# undef symlink
+
+/* Create a symlink, but reject trailing slash.  */
+int
+rpl_symlink (char const *contents, char const *name)
+{
+  size_t len = strlen (name);
+  if (len && name[len - 1] == '/')
+    {
+      struct stat st;
+      if (lstat (name, &st) == 0)
+        errno = EEXIST;
+      return -1;
+    }
+  return symlink (contents, name);
+}
+
+#else /* !HAVE_SYMLINK */
+
+/* The system does not support symlinks.  */
+int
+symlink (char const *contents _GL_UNUSED,
+         char const *name _GL_UNUSED)
+{
+  errno = ENOSYS;
+  return -1;
+}
+
+#endif /* !HAVE_SYMLINK */
diff --git a/tests/gnu/test-alloca-opt.c b/tests/gnu/test-alloca-opt.c
new file mode 100755
index 00000000..cfbecafc
--- /dev/null
+++ b/tests/gnu/test-alloca-opt.c
@@ -0,0 +1,62 @@
+/* Test of optional automatic memory allocation.
+   Copyright (C) 2005, 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <alloca.h>
+
+#if HAVE_ALLOCA
+
+static void
+do_allocation (int n)
+{
+  void *ptr = alloca (n);
+  (void) ptr;
+}
+
+void (*func) (int) = do_allocation;
+
+#endif
+
+int
+main ()
+{
+#if HAVE_ALLOCA
+  int i;
+
+  /* Repeat a lot of times, to make sure there's no memory leak.  */
+  for (i = 0; i < 100000; i++)
+    {
+      /* Try various values.
+         n = 0 gave a crash on Alpha with gcc-2.5.8.
+         Some versions of MacOS X have a stack size limit of 512 KB.  */
+      func (34);
+      func (134);
+      func (399);
+      func (510823);
+      func (129321);
+      func (0);
+      func (4070);
+      func (4095);
+      func (1);
+      func (16582);
+    }
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-array_list.c b/tests/gnu/test-array_list.c
new file mode 100755
index 00000000..d2987794
--- /dev/null
+++ b/tests/gnu/test-array_list.c
@@ -0,0 +1,329 @@
+/* Test of sequential list data type implementation.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "gl_array_list.h"
+
+#include <stdlib.h>
+
+#include "progname.h"
+#include "macros.h"
+
+static const char *objects[15] =
+  {
+    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o"
+  };
+
+#define RANDOM(n) (rand () % (n))
+#define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
+
+static void
+check_equals (gl_list_t list1, gl_list_t list2)
+{
+  size_t n, i;
+
+  n = gl_list_size (list1);
+  ASSERT (n == gl_list_size (list2));
+  for (i = 0; i < n; i++)
+    {
+      ASSERT (gl_list_get_at (list1, i) == gl_list_get_at (list2, i));
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+  gl_list_t list1, list2;
+
+  set_program_name (argv[0]);
+
+  /* Allow the user to provide a non-default random seed on the command line.  */
+  if (argc > 1)
+    srand (atoi (argv[1]));
+
+  {
+    size_t initial_size = RANDOM (50);
+    const void **contents =
+      (const void **) malloc (initial_size * sizeof (const void *));
+    size_t i;
+    unsigned int repeat;
+
+    for (i = 0; i < initial_size; i++)
+      contents[i] = RANDOM_OBJECT ();
+
+    /* Create list1.  */
+    list1 = gl_list_nx_create (GL_ARRAY_LIST, NULL, NULL, NULL, true,
+                               initial_size, contents);
+    ASSERT (list1 != NULL);
+    /* Create list2.  */
+    list2 = gl_list_nx_create_empty (GL_ARRAY_LIST, NULL, NULL, NULL, true);
+    ASSERT (list2 != NULL);
+    for (i = 0; i < initial_size; i++)
+      ASSERT (gl_list_nx_add_last (list2, contents[i]) != NULL);
+
+    check_equals (list1, list2);
+
+    for (repeat = 0; repeat < 10000; repeat++)
+      {
+        unsigned int operation = RANDOM (16);
+        switch (operation)
+          {
+          case 0:
+            if (gl_list_size (list1) > 0)
+              {
+                size_t index = RANDOM (gl_list_size (list1));
+                const char *obj = RANDOM_OBJECT ();
+                gl_list_node_t node1, node2;
+
+                node1 = gl_list_nx_set_at (list1, index, obj);
+                ASSERT (node1 != NULL);
+                ASSERT (gl_list_get_at (list1, index) == obj);
+                ASSERT (gl_list_node_value (list1, node1) == obj);
+
+                node2 = gl_list_nx_set_at (list2, index, obj);
+                ASSERT (node2 != NULL);
+                ASSERT (gl_list_get_at (list2, index) == obj);
+                ASSERT (gl_list_node_value (list2, node2) == obj);
+
+                if (index > 0)
+                  {
+                    ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
+                            == gl_list_get_at (list1, index - 1));
+                  }
+                if (index + 1 < gl_list_size (list1))
+                  {
+                    ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
+                            == gl_list_get_at (list1, index + 1));
+                  }
+              }
+            break;
+          case 1:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2;
+              node1 = gl_list_search (list1, obj);
+              node2 = gl_list_search (list2, obj);
+              if (node1 == NULL)
+                {
+                  ASSERT (node2 == NULL);
+                }
+              else
+                {
+                  ASSERT (node2 != NULL);
+                  ASSERT (gl_list_node_value (list1, node1) == obj);
+                  ASSERT (gl_list_node_value (list2, node2) == obj);
+                }
+            }
+            break;
+          case 2:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              size_t index1, index2;
+              index1 = gl_list_indexof (list1, obj);
+              index2 = gl_list_indexof (list2, obj);
+              if (index1 == (size_t)(-1))
+                {
+                  ASSERT (index2 == (size_t)(-1));
+                }
+              else
+                {
+                  ASSERT (index2 != (size_t)(-1));
+                  ASSERT (gl_list_get_at (list1, index1) == obj);
+                  ASSERT (gl_list_get_at (list2, index2) == obj);
+                  ASSERT (index2 == index1);
+                }
+            }
+            break;
+          case 3: /* add 1 element */
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2;
+              node1 = gl_list_nx_add_first (list1, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_first (list2, obj);
+              ASSERT (node2 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              ASSERT (gl_list_get_at (list1, 0) == obj);
+              ASSERT (gl_list_get_at (list2, 0) == obj);
+            }
+            break;
+          case 4: /* add 1 element */
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2;
+              node1 = gl_list_nx_add_last (list1, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_last (list2, obj);
+              ASSERT (node2 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              ASSERT (gl_list_get_at (list1, gl_list_size (list1) - 1) == obj);
+              ASSERT (gl_list_get_at (list2, gl_list_size (list2) - 1) == obj);
+            }
+            break;
+          case 5: /* add 3 elements */
+            {
+              const char *obj0 = RANDOM_OBJECT ();
+              const char *obj1 = RANDOM_OBJECT ();
+              const char *obj2 = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2;
+              node1 = gl_list_nx_add_first (list1, obj2);
+              ASSERT (node1 != NULL);
+              node1 = gl_list_nx_add_before (list1, node1, obj0);
+              ASSERT (node1 != NULL);
+              node1 = gl_list_nx_add_after (list1, node1, obj1);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_first (list2, obj2);
+              ASSERT (node2 != NULL);
+              node2 = gl_list_nx_add_before (list2, node2, obj0);
+              ASSERT (node2 != NULL);
+              node2 = gl_list_nx_add_after (list2, node2, obj1);
+              ASSERT (node2 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj1);
+              ASSERT (gl_list_node_value (list2, node2) == obj1);
+              ASSERT (gl_list_get_at (list1, 0) == obj0);
+              ASSERT (gl_list_get_at (list1, 1) == obj1);
+              ASSERT (gl_list_get_at (list1, 2) == obj2);
+              ASSERT (gl_list_get_at (list2, 0) == obj0);
+              ASSERT (gl_list_get_at (list2, 1) == obj1);
+              ASSERT (gl_list_get_at (list2, 2) == obj2);
+            }
+            break;
+          case 6: /* add 1 element */
+            {
+              size_t index = RANDOM (gl_list_size (list1) + 1);
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2;
+              node1 = gl_list_nx_add_at (list1, index, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_at (list2, index, obj);
+              ASSERT (node2 != NULL);
+              ASSERT (gl_list_get_at (list1, index) == obj);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_get_at (list2, index) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              if (index > 0)
+                {
+                  ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
+                          == gl_list_get_at (list1, index - 1));
+                }
+              if (index + 1 < gl_list_size (list1))
+                {
+                  ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
+                          == gl_list_get_at (list1, index + 1));
+                }
+            }
+            break;
+          case 7: case 8: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = gl_list_get_at (list1, RANDOM (n));
+                gl_list_node_t node1, node2;
+                node1 = gl_list_search (list1, obj);
+                node2 = gl_list_search (list2, obj);
+                ASSERT (node1 != NULL);
+                ASSERT (node2 != NULL);
+                ASSERT (gl_list_remove_node (list1, node1));
+                ASSERT (gl_list_remove_node (list2, node2));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 9: case 10: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                size_t index = RANDOM (n);
+                ASSERT (gl_list_remove_at (list1, index));
+                ASSERT (gl_list_remove_at (list2, index));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 11: case 12: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = gl_list_get_at (list1, RANDOM (n));
+                ASSERT (gl_list_remove (list1, obj));
+                ASSERT (gl_list_remove (list2, obj));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 13:
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = "xyzzy";
+                ASSERT (!gl_list_remove (list1, obj));
+                ASSERT (!gl_list_remove (list2, obj));
+                ASSERT (gl_list_size (list1) == n);
+              }
+            break;
+          case 14:
+            {
+              size_t n = gl_list_size (list1);
+              gl_list_iterator_t iter1, iter2;
+              const void *elt;
+              iter1 = gl_list_iterator (list1);
+              iter2 = gl_list_iterator (list2);
+              for (i = 0; i < n; i++)
+                {
+                  ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
+                  ASSERT (gl_list_get_at (list1, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
+                  ASSERT (gl_list_get_at (list2, i) == elt);
+                }
+              ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
+              gl_list_iterator_free (&iter1);
+              gl_list_iterator_free (&iter2);
+            }
+            break;
+          case 15:
+            {
+              size_t end = RANDOM (gl_list_size (list1) + 1);
+              size_t start = RANDOM (end + 1);
+              gl_list_iterator_t iter1, iter2;
+              const void *elt;
+              iter1 = gl_list_iterator_from_to (list1, start, end);
+              iter2 = gl_list_iterator_from_to (list2, start, end);
+              for (i = start; i < end; i++)
+                {
+                  ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
+                  ASSERT (gl_list_get_at (list1, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
+                  ASSERT (gl_list_get_at (list2, i) == elt);
+                }
+              ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
+              gl_list_iterator_free (&iter1);
+              gl_list_iterator_free (&iter2);
+            }
+            break;
+          }
+        check_equals (list1, list2);
+      }
+
+    gl_list_free (list1);
+    gl_list_free (list2);
+    free (contents);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-array_oset.c b/tests/gnu/test-array_oset.c
new file mode 100755
index 00000000..9ec6171c
--- /dev/null
+++ b/tests/gnu/test-array_oset.c
@@ -0,0 +1,144 @@
+/* Test of ordered set data type implementation.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2007.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "gl_array_oset.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "gl_xlist.h"
+#include "gl_array_list.h"
+#include "progname.h"
+#include "macros.h"
+
+static const char *objects[30] =
+  {
+    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
+    "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "<", ">", "[", "]"
+  };
+
+#define RANDOM(n) (rand () % (n))
+#define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
+
+static void
+check_equals (gl_oset_t set1, gl_list_t set2)
+{
+  size_t n = gl_oset_size (set1);
+  gl_oset_iterator_t iter1;
+  gl_list_iterator_t iter2;
+  const void *elt1;
+  const void *elt2;
+  gl_list_node_t node2;
+  size_t i;
+
+  iter1 = gl_oset_iterator (set1);
+  iter2 = gl_list_iterator (set2);
+  for (i = 0; i < n; i++)
+    {
+      ASSERT (gl_oset_iterator_next (&iter1, &elt1));
+      ASSERT (gl_list_iterator_next (&iter2, &elt2, &node2));
+      ASSERT (elt1 == elt2);
+    }
+  ASSERT (!gl_oset_iterator_next (&iter1, &elt1));
+  ASSERT (!gl_list_iterator_next (&iter2, &elt2, &node2));
+  gl_oset_iterator_free (&iter1);
+  gl_list_iterator_free (&iter2);
+}
+
+static void
+check_all (gl_oset_t set1, gl_list_t set2)
+{
+  check_equals (set1, set2);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gl_oset_t set1;
+  gl_list_t set2;
+
+  set_program_name (argv[0]);
+
+  /* Allow the user to provide a non-default random seed on the command line.  */
+  if (argc > 1)
+    srand (atoi (argv[1]));
+
+  {
+    size_t initial_size = RANDOM (20);
+    size_t i;
+    unsigned int repeat;
+
+    /* Create set1.  */
+    set1 = gl_oset_nx_create_empty (GL_ARRAY_OSET, (gl_setelement_compar_fn) strcmp, NULL);
+    ASSERT (set1 != NULL);
+
+    /* Create set2.  */
+    set2 = gl_list_create_empty (GL_ARRAY_LIST, NULL, NULL, NULL, false);
+
+    check_all (set1, set2);
+
+    /* Initialize them.  */
+    for (i = 0; i < initial_size; i++)
+      {
+        const char *obj = RANDOM_OBJECT ();
+        ASSERT (gl_oset_nx_add (set1, obj)
+                == (gl_sortedlist_search (set2, (gl_listelement_compar_fn)strcmp, obj) != NULL
+                    ? false
+                    : (gl_sortedlist_add (set2, (gl_listelement_compar_fn)strcmp, obj), true)));
+        check_all (set1, set2);
+      }
+
+    for (repeat = 0; repeat < 100000; repeat++)
+      {
+        unsigned int operation = RANDOM (3);
+        switch (operation)
+          {
+          case 0:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_search (set1, obj)
+                      == (gl_sortedlist_search (set2, (gl_listelement_compar_fn)strcmp, obj) != NULL));
+            }
+            break;
+          case 1:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_nx_add (set1, obj)
+                      == (gl_sortedlist_search (set2, (gl_listelement_compar_fn)strcmp, obj) != NULL
+                          ? false
+                          : (gl_sortedlist_add (set2, (gl_listelement_compar_fn)strcmp, obj), true)));
+            }
+            break;
+          case 2:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_remove (set1, obj)
+                      == gl_sortedlist_remove (set2, (gl_listelement_compar_fn)strcmp, obj));
+            }
+            break;
+          }
+        check_all (set1, set2);
+      }
+
+    gl_oset_free (set1);
+    gl_list_free (set2);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-avltree_oset.c b/tests/gnu/test-avltree_oset.c
new file mode 100755
index 00000000..211c8332
--- /dev/null
+++ b/tests/gnu/test-avltree_oset.c
@@ -0,0 +1,136 @@
+/* Test of ordered set data type implementation.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "gl_avltree_oset.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "gl_array_oset.h"
+#include "progname.h"
+#include "macros.h"
+
+extern void gl_avltree_oset_check_invariants (gl_oset_t set);
+
+static const char *objects[30] =
+  {
+    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o",
+    "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "<", ">", "[", "]"
+  };
+
+#define RANDOM(n) (rand () % (n))
+#define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
+
+static void
+check_equals (gl_oset_t set1, gl_oset_t set2)
+{
+  size_t n = gl_oset_size (set1);
+  gl_oset_iterator_t iter1, iter2;
+  const void *elt1;
+  const void *elt2;
+  size_t i;
+
+  iter1 = gl_oset_iterator (set1);
+  iter2 = gl_oset_iterator (set2);
+  for (i = 0; i < n; i++)
+    {
+      ASSERT (gl_oset_iterator_next (&iter1, &elt1));
+      ASSERT (gl_oset_iterator_next (&iter2, &elt2));
+      ASSERT (elt1 == elt2);
+    }
+  ASSERT (!gl_oset_iterator_next (&iter1, &elt1));
+  ASSERT (!gl_oset_iterator_next (&iter2, &elt2));
+  gl_oset_iterator_free (&iter1);
+  gl_oset_iterator_free (&iter2);
+}
+
+static void
+check_all (gl_oset_t set1, gl_oset_t set2)
+{
+  gl_avltree_oset_check_invariants (set2);
+  check_equals (set1, set2);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gl_oset_t set1, set2;
+
+  set_program_name (argv[0]);
+
+  /* Allow the user to provide a non-default random seed on the command line.  */
+  if (argc > 1)
+    srand (atoi (argv[1]));
+
+  {
+    size_t initial_size = RANDOM (20);
+    size_t i;
+    unsigned int repeat;
+
+    /* Create set1.  */
+    set1 = gl_oset_nx_create_empty (GL_ARRAY_OSET, (gl_setelement_compar_fn) strcmp, NULL);
+    ASSERT (set1 != NULL);
+
+    /* Create set2.  */
+    set2 = gl_oset_nx_create_empty (GL_AVLTREE_OSET, (gl_setelement_compar_fn) strcmp, NULL);
+    ASSERT (set2 != NULL);
+
+    check_all (set1, set2);
+
+    /* Initialize them.  */
+    for (i = 0; i < initial_size; i++)
+      {
+        const char *obj = RANDOM_OBJECT ();
+        ASSERT (gl_oset_nx_add (set1, obj) == gl_oset_nx_add (set2, obj));
+        check_all (set1, set2);
+      }
+
+    for (repeat = 0; repeat < 100000; repeat++)
+      {
+        unsigned int operation = RANDOM (3);
+        switch (operation)
+          {
+          case 0:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_search (set1, obj) == gl_oset_search (set2, obj));
+            }
+            break;
+          case 1:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_nx_add (set1, obj) == gl_oset_nx_add (set2, obj));
+            }
+            break;
+          case 2:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              ASSERT (gl_oset_remove (set1, obj) == gl_oset_remove (set2, obj));
+            }
+            break;
+          }
+        check_all (set1, set2);
+      }
+
+    gl_oset_free (set1);
+    gl_oset_free (set2);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-binary-io.c b/tests/gnu/test-binary-io.c
new file mode 100755
index 00000000..125150b2
--- /dev/null
+++ b/tests/gnu/test-binary-io.c
@@ -0,0 +1,64 @@
+/* Test of binary mode I/O.
+   Copyright (C) 2005, 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2005.  */
+
+#include <config.h>
+
+#include "binary-io.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+  /* Test the O_BINARY macro.  */
+  {
+    int fd =
+      open ("t-bin-out2.tmp", O_CREAT | O_TRUNC | O_RDWR | O_BINARY, 0600);
+    if (write (fd, "Hello\n", 6) < 0)
+      exit (1);
+    close (fd);
+  }
+  {
+    struct stat statbuf;
+    if (stat ("t-bin-out2.tmp", &statbuf) < 0)
+      exit (1);
+    ASSERT (statbuf.st_size == 6);
+  }
+  unlink ("t-bin-out2.tmp");
+
+  /* Test the SET_BINARY macro.  */
+  SET_BINARY (1);
+  fputs ("Hello\n", stdout);
+  fclose (stdout);
+  fclose (stderr);
+  {
+    struct stat statbuf;
+    if (stat ("t-bin-out1.tmp", &statbuf) < 0)
+      exit (1);
+    ASSERT (statbuf.st_size == 6);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-binary-io.sh b/tests/gnu/test-binary-io.sh
new file mode 100755
index 00000000..33e128c3
--- /dev/null
+++ b/tests/gnu/test-binary-io.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles t-bin-out1.tmp t-bin-out2.tmp"
+./test-binary-io${EXEEXT} > t-bin-out1.tmp || exit 1
+
+rm -fr $tmpfiles
+
+exit 0
diff --git a/tests/gnu/test-bitrotate.c b/tests/gnu/test-bitrotate.c
new file mode 100755
index 00000000..59c95a87
--- /dev/null
+++ b/tests/gnu/test-bitrotate.c
@@ -0,0 +1,279 @@
+/* Test of <bitrotate.h> substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Simon Josefsson <simon@josefsson.org>, 2008.  */
+
+#include <config.h>
+
+#include "bitrotate.h"
+
+#include "macros.h"
+
+int
+main (void)
+{
+  ASSERT (rotl8 (42, 0) == 42);
+  ASSERT (rotl8 (42, 1) == 84);
+  ASSERT (rotl8 (42, 2) == 168);
+  ASSERT (rotl8 (42, 3) == 81);
+  ASSERT (rotl8 (42, 4) == 162);
+  ASSERT (rotl8 (42, 5) == 69);
+  ASSERT (rotl8 (42, 6) == 138);
+  ASSERT (rotl8 (42, 7) == 21);
+  ASSERT (rotl8 (42, 8) == 42);
+
+  ASSERT (rotr8 (42, 0) == 42);
+  ASSERT (rotr8 (42, 1) == 21);
+  ASSERT (rotr8 (42, 2) == 138);
+  ASSERT (rotr8 (42, 3) == 69);
+  ASSERT (rotr8 (42, 4) == 162);
+  ASSERT (rotr8 (42, 5) == 81);
+  ASSERT (rotr8 (42, 6) == 168);
+  ASSERT (rotr8 (42, 7) == 84);
+  ASSERT (rotr8 (42, 8) == 42);
+
+  ASSERT (rotl16 (43981, 0) == 43981);
+  ASSERT (rotl16 (43981, 1) == 22427);
+  ASSERT (rotl16 (43981, 2) == 44854);
+  ASSERT (rotl16 (43981, 3) == 24173);
+  ASSERT (rotl16 (43981, 4) == 48346);
+  ASSERT (rotl16 (43981, 5) == 31157);
+  ASSERT (rotl16 (43981, 6) == 62314);
+  ASSERT (rotl16 (43981, 7) == 59093);
+  ASSERT (rotl16 (43981, 8) == 52651);
+  ASSERT (rotl16 (43981, 9) == 39767);
+  ASSERT (rotl16 (43981, 10) == 13999);
+  ASSERT (rotl16 (43981, 11) == 27998);
+  ASSERT (rotl16 (43981, 12) == 55996);
+  ASSERT (rotl16 (43981, 13) == 46457);
+  ASSERT (rotl16 (43981, 14) == 27379);
+  ASSERT (rotl16 (43981, 15) == 54758);
+  ASSERT (rotl16 (43981, 16) == 43981);
+
+  ASSERT (rotr16 (43981, 0) == 43981);
+  ASSERT (rotr16 (43981, 1) == 54758);
+  ASSERT (rotr16 (43981, 2) == 27379);
+  ASSERT (rotr16 (43981, 3) == 46457);
+  ASSERT (rotr16 (43981, 4) == 55996);
+  ASSERT (rotr16 (43981, 5) == 27998);
+  ASSERT (rotr16 (43981, 6) == 13999);
+  ASSERT (rotr16 (43981, 7) == 39767);
+  ASSERT (rotr16 (43981, 8) == 52651);
+  ASSERT (rotr16 (43981, 9) == 59093);
+  ASSERT (rotr16 (43981, 10) == 62314);
+  ASSERT (rotr16 (43981, 11) == 31157);
+  ASSERT (rotr16 (43981, 12) == 48346);
+  ASSERT (rotr16 (43981, 13) == 24173);
+  ASSERT (rotr16 (43981, 14) == 44854);
+  ASSERT (rotr16 (43981, 15) == 22427);
+  ASSERT (rotr16 (43981, 16) == 43981);
+
+  ASSERT (rotl32 (2309737967U, 1) == 324508639U);
+  ASSERT (rotl32 (2309737967U, 2) == 649017278U);
+  ASSERT (rotl32 (2309737967U, 3) == 1298034556U);
+  ASSERT (rotl32 (2309737967U, 4) == 2596069112U);
+  ASSERT (rotl32 (2309737967U, 5) == 897170929U);
+  ASSERT (rotl32 (2309737967U, 6) == 1794341858U);
+  ASSERT (rotl32 (2309737967U, 7) == 3588683716U);
+  ASSERT (rotl32 (2309737967U, 8) == 2882400137U);
+  ASSERT (rotl32 (2309737967U, 9) == 1469832979U);
+  ASSERT (rotl32 (2309737967U, 10) == 2939665958U);
+  ASSERT (rotl32 (2309737967U, 11) == 1584364621U);
+  ASSERT (rotl32 (2309737967U, 12) == 3168729242U);
+  ASSERT (rotl32 (2309737967U, 13) == 2042491189U);
+  ASSERT (rotl32 (2309737967U, 14) == 4084982378U);
+  ASSERT (rotl32 (2309737967U, 15) == 3874997461U);
+  ASSERT (rotl32 (2309737967U, 16) == 3455027627U);
+  ASSERT (rotl32 (2309737967U, 17) == 2615087959U);
+  ASSERT (rotl32 (2309737967U, 18) == 935208623U);
+  ASSERT (rotl32 (2309737967U, 19) == 1870417246U);
+  ASSERT (rotl32 (2309737967U, 20) == 3740834492U);
+  ASSERT (rotl32 (2309737967U, 21) == 3186701689U);
+  ASSERT (rotl32 (2309737967U, 22) == 2078436083U);
+  ASSERT (rotl32 (2309737967U, 23) == 4156872166U);
+  ASSERT (rotl32 (2309737967U, 24) == 4018777037U);
+  ASSERT (rotl32 (2309737967U, 25) == 3742586779U);
+  ASSERT (rotl32 (2309737967U, 26) == 3190206263U);
+  ASSERT (rotl32 (2309737967U, 27) == 2085445231U);
+  ASSERT (rotl32 (2309737967U, 28) == 4170890462U);
+  ASSERT (rotl32 (2309737967U, 29) == 4046813629U);
+  ASSERT (rotl32 (2309737967U, 30) == 3798659963U);
+  ASSERT (rotl32 (2309737967U, 31) == 3302352631U);
+
+  ASSERT (rotr32 (2309737967U, 1) == 3302352631lU);
+  ASSERT (rotr32 (2309737967U, 2) == 3798659963lU);
+  ASSERT (rotr32 (2309737967U, 3) == 4046813629lU);
+  ASSERT (rotr32 (2309737967U, 4) == 4170890462lU);
+  ASSERT (rotr32 (2309737967U, 5) == 2085445231lU);
+  ASSERT (rotr32 (2309737967U, 6) == 3190206263lU);
+  ASSERT (rotr32 (2309737967U, 7) == 3742586779lU);
+  ASSERT (rotr32 (2309737967U, 8) == 4018777037lU);
+  ASSERT (rotr32 (2309737967U, 9) == 4156872166lU);
+  ASSERT (rotr32 (2309737967U, 10) == 2078436083lU);
+  ASSERT (rotr32 (2309737967U, 11) == 3186701689lU);
+  ASSERT (rotr32 (2309737967U, 12) == 3740834492lU);
+  ASSERT (rotr32 (2309737967U, 13) == 1870417246lU);
+  ASSERT (rotr32 (2309737967U, 14) == 935208623lU);
+  ASSERT (rotr32 (2309737967U, 15) == 2615087959lU);
+  ASSERT (rotr32 (2309737967U, 16) == 3455027627lU);
+  ASSERT (rotr32 (2309737967U, 17) == 3874997461lU);
+  ASSERT (rotr32 (2309737967U, 18) == 4084982378lU);
+  ASSERT (rotr32 (2309737967U, 19) == 2042491189lU);
+  ASSERT (rotr32 (2309737967U, 20) == 3168729242lU);
+  ASSERT (rotr32 (2309737967U, 21) == 1584364621lU);
+  ASSERT (rotr32 (2309737967U, 22) == 2939665958lU);
+  ASSERT (rotr32 (2309737967U, 23) == 1469832979lU);
+  ASSERT (rotr32 (2309737967U, 24) == 2882400137lU);
+  ASSERT (rotr32 (2309737967U, 25) == 3588683716lU);
+  ASSERT (rotr32 (2309737967U, 26) == 1794341858lU);
+  ASSERT (rotr32 (2309737967U, 27) == 897170929lU);
+  ASSERT (rotr32 (2309737967U, 28) == 2596069112lU);
+  ASSERT (rotr32 (2309737967U, 29) == 1298034556lU);
+  ASSERT (rotr32 (2309737967U, 30) == 649017278lU);
+  ASSERT (rotr32 (2309737967U, 31) == 324508639lU);
+
+#ifdef UINT64_MAX
+  ASSERT (rotl64 (16045690984503098046ULL, 1) == 13644637895296644477ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 2) == 8842531716883737339ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 3) == 17685063433767474678ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 4) == 16923382793825397741ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 5) == 15400021513941243867ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 6) == 12353298954172936119ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 7) == 6259853834636320623ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 8) == 12519707669272641246ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 9) == 6592671264835730877ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 10) == 13185342529671461754ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 11) == 7923940985633371893ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 12) == 15847881971266743786ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 13) == 13249019868823935957ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 14) == 8051295663938320299ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 15) == 16102591327876640598ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 16) == 13758438582043729581ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 17) == 9070133090377907547ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 18) == 18140266180755815094ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 19) == 17833788287802078573ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 20) == 17220832501894605531ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 21) == 15994920930079659447ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 22) == 13543097786449767279ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 23) == 8639451499189982943ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 24) == 17278902998379965886ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 25) == 16111061923050380157ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 26) == 13775379772391208699ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 27) == 9104015471072865783ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 28) == 18208030942145731566ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 29) == 17969317810581911517ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 30) == 17491891547454271419ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 31) == 16537039021198991223ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 32) == 14627333968688430831ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 33) == 10807923863667310047ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 34) == 3169103653625068479ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 35) == 6338207307250136958ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 36) == 12676414614500273916ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 37) == 6906085155290996217ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 38) == 13812170310581992434ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 39) == 9177596547454433253ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 40) == 18355193094908866506ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 41) == 18263642116108181397ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 42) == 18080540158506811179ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 43) == 17714336243304070743ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 44) == 16981928412898589871ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 45) == 15517112752087628127ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 46) == 12587481430465704639ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 47) == 6728218787221857663ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 48) == 13456437574443715326ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 49) == 8466131075177879037ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 50) == 16932262150355758074ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 51) == 15417780227001964533ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 52) == 12388816380294377451ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 53) == 6330888686879203287ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 54) == 12661777373758406574ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 55) == 6876810673807261533ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 56) == 13753621347614523066ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 57) == 9060498621519494517ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 58) == 18120997243038989034ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 59) == 17795250412368426453ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 60) == 17143756751027301291ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 61) == 15840769428345050967ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 62) == 13234794782980550319ULL);
+  ASSERT (rotl64 (16045690984503098046ULL, 63) == 8022845492251549023ULL);
+
+  ASSERT (rotr64 (16045690984503098046ULL, 1) == 8022845492251549023ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 2) == 13234794782980550319ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 3) == 15840769428345050967ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 4) == 17143756751027301291ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 5) == 17795250412368426453ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 6) == 18120997243038989034ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 7) == 9060498621519494517ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 8) == 13753621347614523066ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 9) == 6876810673807261533ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 10) == 12661777373758406574ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 11) == 6330888686879203287ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 12) == 12388816380294377451ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 13) == 15417780227001964533ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 14) == 16932262150355758074ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 15) == 8466131075177879037ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 16) == 13456437574443715326ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 17) == 6728218787221857663ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 18) == 12587481430465704639ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 19) == 15517112752087628127ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 20) == 16981928412898589871ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 21) == 17714336243304070743ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 22) == 18080540158506811179ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 23) == 18263642116108181397ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 24) == 18355193094908866506ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 25) == 9177596547454433253ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 26) == 13812170310581992434ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 27) == 6906085155290996217ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 28) == 12676414614500273916ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 29) == 6338207307250136958ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 30) == 3169103653625068479ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 31) == 10807923863667310047ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 32) == 14627333968688430831ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 33) == 16537039021198991223ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 34) == 17491891547454271419ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 35) == 17969317810581911517ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 36) == 18208030942145731566ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 37) == 9104015471072865783ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 38) == 13775379772391208699ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 39) == 16111061923050380157ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 40) == 17278902998379965886ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 41) == 8639451499189982943ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 42) == 13543097786449767279ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 43) == 15994920930079659447ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 44) == 17220832501894605531ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 45) == 17833788287802078573ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 46) == 18140266180755815094ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 47) == 9070133090377907547ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 48) == 13758438582043729581ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 49) == 16102591327876640598ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 50) == 8051295663938320299ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 51) == 13249019868823935957ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 52) == 15847881971266743786ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 53) == 7923940985633371893ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 54) == 13185342529671461754ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 55) == 6592671264835730877ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 56) == 12519707669272641246ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 57) == 6259853834636320623ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 58) == 12353298954172936119ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 59) == 15400021513941243867ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 60) == 16923382793825397741ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 61) == 17685063433767474678ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 62) == 8842531716883737339ULL);
+  ASSERT (rotr64 (16045690984503098046ULL, 63) == 13644637895296644477ULL);
+#endif /* UINT64_MAX */
+
+  return 0;
+}
diff --git a/tests/gnu/test-btowc.c b/tests/gnu/test-btowc.c
new file mode 100755
index 00000000..9d115960
--- /dev/null
+++ b/tests/gnu/test-btowc.c
@@ -0,0 +1,63 @@
+/* Test of conversion of unibyte character to wide character.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (btowc, wint_t, (int));
+
+#include <locale.h>
+#include <stdio.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  int c;
+
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  ASSERT (btowc (EOF) == WEOF);
+
+  if (argc > 1)
+    switch (argv[1][0])
+      {
+      case '1':
+        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
+        for (c = 0; c < 0x80; c++)
+          ASSERT (btowc (c) == c);
+        for (c = 0xA0; c < 0x100; c++)
+          ASSERT (btowc (c) != WEOF);
+        return 0;
+
+      case '2':
+        /* Locale encoding is UTF-8.  */
+        for (c = 0; c < 0x80; c++)
+          ASSERT (btowc (c) == c);
+        for (c = 0x80; c < 0x100; c++)
+          ASSERT (btowc (c) == WEOF);
+        return 0;
+      }
+
+  return 1;
+}
diff --git a/tests/gnu/test-btowc1.sh b/tests/gnu/test-btowc1.sh
new file mode 100755
index 00000000..aaef48d2
--- /dev/null
+++ b/tests/gnu/test-btowc1.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test in an ISO-8859-1 or ISO-8859-15 locale.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no traditional french locale is installed"
+  else
+    echo "Skipping test: no traditional french locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR \
+./test-btowc${EXEEXT} 1
diff --git a/tests/gnu/test-btowc2.sh b/tests/gnu/test-btowc2.sh
new file mode 100755
index 00000000..2e060384
--- /dev/null
+++ b/tests/gnu/test-btowc2.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french Unicode locale is installed"
+  else
+    echo "Skipping test: no french Unicode locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR_UTF8 \
+./test-btowc${EXEEXT} 2
diff --git a/tests/gnu/test-c-ctype.c b/tests/gnu/test-c-ctype.c
new file mode 100755
index 00000000..ebe594dd
--- /dev/null
+++ b/tests/gnu/test-c-ctype.c
@@ -0,0 +1,386 @@
+/* Test of character handling in C locale.
+   Copyright (C) 2005, 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2005.  */
+
+#include <config.h>
+
+#include "c-ctype.h"
+
+#include <locale.h>
+
+#include "macros.h"
+
+static void
+test_all (void)
+{
+  int c;
+
+  for (c = -0x80; c < 0x100; c++)
+    {
+      ASSERT (c_isascii (c) == (c >= 0 && c < 0x80));
+
+      switch (c)
+        {
+        case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+        case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+        case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+        case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+        case 'Y': case 'Z':
+        case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+        case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+        case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+        case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+        case 'y': case 'z':
+        case '0': case '1': case '2': case '3': case '4': case '5':
+        case '6': case '7': case '8': case '9':
+          ASSERT (c_isalnum (c) == 1);
+          break;
+        default:
+          ASSERT (c_isalnum (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+        case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+        case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+        case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+        case 'Y': case 'Z':
+        case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+        case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+        case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+        case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+        case 'y': case 'z':
+          ASSERT (c_isalpha (c) == 1);
+          break;
+        default:
+          ASSERT (c_isalpha (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case '\t': case ' ':
+          ASSERT (c_isblank (c) == 1);
+          break;
+        default:
+          ASSERT (c_isblank (c) == 0);
+          break;
+        }
+
+      ASSERT (c_iscntrl (c) == ((c >= 0 && c < 0x20) || c == 0x7f));
+
+      switch (c)
+        {
+        case '0': case '1': case '2': case '3': case '4': case '5':
+        case '6': case '7': case '8': case '9':
+          ASSERT (c_isdigit (c) == 1);
+          break;
+        default:
+          ASSERT (c_isdigit (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+        case 'g': case 'h': case 'i': case 'j': case 'k': case 'l':
+        case 'm': case 'n': case 'o': case 'p': case 'q': case 'r':
+        case 's': case 't': case 'u': case 'v': case 'w': case 'x':
+        case 'y': case 'z':
+          ASSERT (c_islower (c) == 1);
+          break;
+        default:
+          ASSERT (c_islower (c) == 0);
+          break;
+        }
+
+      ASSERT (c_isgraph (c) == ((c >= 0x20 && c < 0x7f) && c != ' '));
+
+      ASSERT (c_isprint (c) == (c >= 0x20 && c < 0x7f));
+
+      ASSERT (c_ispunct (c) == (c_isgraph (c) && !c_isalnum (c)));
+
+      switch (c)
+        {
+        case ' ': case '\t': case '\n': case '\v': case '\f': case '\r':
+          ASSERT (c_isspace (c) == 1);
+          break;
+        default:
+          ASSERT (c_isspace (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+        case 'G': case 'H': case 'I': case 'J': case 'K': case 'L':
+        case 'M': case 'N': case 'O': case 'P': case 'Q': case 'R':
+        case 'S': case 'T': case 'U': case 'V': case 'W': case 'X':
+        case 'Y': case 'Z':
+          ASSERT (c_isupper (c) == 1);
+          break;
+        default:
+          ASSERT (c_isupper (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case '0': case '1': case '2': case '3': case '4': case '5':
+        case '6': case '7': case '8': case '9':
+        case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
+        case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
+          ASSERT (c_isxdigit (c) == 1);
+          break;
+        default:
+          ASSERT (c_isxdigit (c) == 0);
+          break;
+        }
+
+      switch (c)
+        {
+        case 'A':
+          ASSERT (c_tolower (c) == 'a');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'B':
+          ASSERT (c_tolower (c) == 'b');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'C':
+          ASSERT (c_tolower (c) == 'c');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'D':
+          ASSERT (c_tolower (c) == 'd');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'E':
+          ASSERT (c_tolower (c) == 'e');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'F':
+          ASSERT (c_tolower (c) == 'f');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'G':
+          ASSERT (c_tolower (c) == 'g');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'H':
+          ASSERT (c_tolower (c) == 'h');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'I':
+          ASSERT (c_tolower (c) == 'i');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'J':
+          ASSERT (c_tolower (c) == 'j');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'K':
+          ASSERT (c_tolower (c) == 'k');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'L':
+          ASSERT (c_tolower (c) == 'l');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'M':
+          ASSERT (c_tolower (c) == 'm');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'N':
+          ASSERT (c_tolower (c) == 'n');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'O':
+          ASSERT (c_tolower (c) == 'o');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'P':
+          ASSERT (c_tolower (c) == 'p');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'Q':
+          ASSERT (c_tolower (c) == 'q');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'R':
+          ASSERT (c_tolower (c) == 'r');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'S':
+          ASSERT (c_tolower (c) == 's');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'T':
+          ASSERT (c_tolower (c) == 't');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'U':
+          ASSERT (c_tolower (c) == 'u');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'V':
+          ASSERT (c_tolower (c) == 'v');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'W':
+          ASSERT (c_tolower (c) == 'w');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'X':
+          ASSERT (c_tolower (c) == 'x');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'Y':
+          ASSERT (c_tolower (c) == 'y');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'Z':
+          ASSERT (c_tolower (c) == 'z');
+          ASSERT (c_toupper (c) == c);
+          break;
+        case 'a':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'A');
+          break;
+        case 'b':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'B');
+          break;
+        case 'c':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'C');
+          break;
+        case 'd':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'D');
+          break;
+        case 'e':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'E');
+          break;
+        case 'f':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'F');
+          break;
+        case 'g':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'G');
+          break;
+        case 'h':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'H');
+          break;
+        case 'i':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'I');
+          break;
+        case 'j':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'J');
+          break;
+        case 'k':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'K');
+          break;
+        case 'l':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'L');
+          break;
+        case 'm':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'M');
+          break;
+        case 'n':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'N');
+          break;
+        case 'o':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'O');
+          break;
+        case 'p':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'P');
+          break;
+        case 'q':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'Q');
+          break;
+        case 'r':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'R');
+          break;
+        case 's':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'S');
+          break;
+        case 't':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'T');
+          break;
+        case 'u':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'U');
+          break;
+        case 'v':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'V');
+          break;
+        case 'w':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'W');
+          break;
+        case 'x':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'X');
+          break;
+        case 'y':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'Y');
+          break;
+        case 'z':
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == 'Z');
+          break;
+        default:
+          ASSERT (c_tolower (c) == c);
+          ASSERT (c_toupper (c) == c);
+          break;
+        }
+    }
+}
+
+int
+main ()
+{
+  test_all ();
+
+  setlocale (LC_ALL, "de_DE");
+  test_all ();
+
+  setlocale (LC_ALL, "ja_JP.EUC-JP");
+  test_all ();
+
+  return 0;
+}
diff --git a/tests/gnu/test-c-strcase.sh b/tests/gnu/test-c-strcase.sh
new file mode 100755
index 00000000..5fcf906b
--- /dev/null
+++ b/tests/gnu/test-c-strcase.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# Test in the C locale.
+./test-c-strcasecmp${EXEEXT} || exit 1
+./test-c-strncasecmp${EXEEXT} || exit 1
+
+# Test in an ISO-8859-1 or ISO-8859-15 locale.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR != none; then
+  LC_ALL=$LOCALE_FR ./test-c-strcasecmp${EXEEXT} locale || exit 1
+  LC_ALL=$LOCALE_FR ./test-c-strncasecmp${EXEEXT} locale || exit 1
+fi
+
+# Test in a Turkish UTF-8 locale.
+: ${LOCALE_TR_UTF8=tr_TR.UTF-8}
+if test $LOCALE_TR_UTF8 != none; then
+  LC_ALL=$LOCALE_TR_UTF8 ./test-c-strcasecmp${EXEEXT} locale || exit 1
+  LC_ALL=$LOCALE_TR_UTF8 ./test-c-strncasecmp${EXEEXT} locale || exit 1
+fi
+
+exit 0
diff --git a/tests/gnu/test-c-strcasecmp.c b/tests/gnu/test-c-strcasecmp.c
new file mode 100755
index 00000000..84ea9b55
--- /dev/null
+++ b/tests/gnu/test-c-strcasecmp.c
@@ -0,0 +1,65 @@
+/* Test of case-insensitive string comparison function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "c-strcase.h"
+
+#include <locale.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  if (argc > 1)
+    {
+      /* configure should already have checked that the locale is supported.  */
+      if (setlocale (LC_ALL, "") == NULL)
+        return 1;
+    }
+
+  ASSERT (c_strcasecmp ("paragraph", "Paragraph") == 0);
+
+  ASSERT (c_strcasecmp ("paragrapH", "parAgRaph") == 0);
+
+  ASSERT (c_strcasecmp ("paragraph", "paraLyzed") < 0);
+  ASSERT (c_strcasecmp ("paraLyzed", "paragraph") > 0);
+
+  ASSERT (c_strcasecmp ("para", "paragraph") < 0);
+  ASSERT (c_strcasecmp ("paragraph", "para") > 0);
+
+  /* The following tests shows how c_strcasecmp() is different from
+     strcasecmp().  */
+
+  ASSERT (c_strcasecmp ("\311mile", "\351mile") < 0);
+  ASSERT (c_strcasecmp ("\351mile", "\311mile") > 0);
+
+  /* The following tests shows how c_strcasecmp() is different from
+     mbscasecmp().  */
+
+  ASSERT (c_strcasecmp ("\303\266zg\303\274r", "\303\226ZG\303\234R") > 0); /* özgür */
+  ASSERT (c_strcasecmp ("\303\226ZG\303\234R", "\303\266zg\303\274r") < 0); /* özgür */
+
+  /* This test shows how strings of different size cannot compare equal.  */
+  ASSERT (c_strcasecmp ("turkish", "TURK\304\260SH") < 0);
+  ASSERT (c_strcasecmp ("TURK\304\260SH", "turkish") > 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-c-strncasecmp.c b/tests/gnu/test-c-strncasecmp.c
new file mode 100755
index 00000000..f02cb2d6
--- /dev/null
+++ b/tests/gnu/test-c-strncasecmp.c
@@ -0,0 +1,79 @@
+/* Test of case-insensitive string comparison function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "c-strcase.h"
+
+#include <locale.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  if (argc > 1)
+    {
+      /* configure should already have checked that the locale is supported.  */
+      if (setlocale (LC_ALL, "") == NULL)
+        return 1;
+    }
+
+  ASSERT (c_strncasecmp ("paragraph", "Paragraph", 1000000) == 0);
+  ASSERT (c_strncasecmp ("paragraph", "Paragraph", 9) == 0);
+
+  ASSERT (c_strncasecmp ("paragrapH", "parAgRaph", 1000000) == 0);
+  ASSERT (c_strncasecmp ("paragrapH", "parAgRaph", 9) == 0);
+
+  ASSERT (c_strncasecmp ("paragraph", "paraLyzed", 10) < 0);
+  ASSERT (c_strncasecmp ("paragraph", "paraLyzed", 9) < 0);
+  ASSERT (c_strncasecmp ("paragraph", "paraLyzed", 5) < 0);
+  ASSERT (c_strncasecmp ("paragraph", "paraLyzed", 4) == 0);
+  ASSERT (c_strncasecmp ("paraLyzed", "paragraph", 10) > 0);
+  ASSERT (c_strncasecmp ("paraLyzed", "paragraph", 9) > 0);
+  ASSERT (c_strncasecmp ("paraLyzed", "paragraph", 5) > 0);
+  ASSERT (c_strncasecmp ("paraLyzed", "paragraph", 4) == 0);
+
+  ASSERT (c_strncasecmp ("para", "paragraph", 10) < 0);
+  ASSERT (c_strncasecmp ("para", "paragraph", 9) < 0);
+  ASSERT (c_strncasecmp ("para", "paragraph", 5) < 0);
+  ASSERT (c_strncasecmp ("para", "paragraph", 4) == 0);
+  ASSERT (c_strncasecmp ("paragraph", "para", 10) > 0);
+  ASSERT (c_strncasecmp ("paragraph", "para", 9) > 0);
+  ASSERT (c_strncasecmp ("paragraph", "para", 5) > 0);
+  ASSERT (c_strncasecmp ("paragraph", "para", 4) == 0);
+
+  /* The following tests shows how c_strncasecmp() is different from
+     strncasecmp().  */
+
+  ASSERT (c_strncasecmp ("\311mily", "\351mile", 4) < 0);
+  ASSERT (c_strncasecmp ("\351mile", "\311mily", 4) > 0);
+
+  /* The following tests shows how c_strncasecmp() is different from
+     mbsncasecmp().  */
+
+  ASSERT (c_strncasecmp ("\303\266zg\303\274r", "\303\226ZG\303\234R", 99) > 0); /* özgür */
+  ASSERT (c_strncasecmp ("\303\226ZG\303\234R", "\303\266zg\303\274r", 99) < 0); /* özgür */
+
+  /* This test shows how strings of different size cannot compare equal.  */
+  ASSERT (c_strncasecmp ("turkish", "TURK\304\260SH", 7) < 0);
+  ASSERT (c_strncasecmp ("TURK\304\260SH", "turkish", 7) > 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-canonicalize-lgpl.c b/tests/gnu/test-canonicalize-lgpl.c
new file mode 100755
index 00000000..cbf481d3
--- /dev/null
+++ b/tests/gnu/test-canonicalize-lgpl.c
@@ -0,0 +1,222 @@
+/* Test of execution of program termination handlers.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (realpath, char *, (const char *, char *));
+SIGNATURE_CHECK (canonicalize_file_name, char *, (const char *));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "same-inode.h"
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "t-can-lgpl.tmp"
+
+static void *
+null_ptr (void)
+{
+  return NULL;
+}
+
+int
+main (void)
+{
+#ifdef GNULIB_CANONICALIZE
+  /* No need to test canonicalize-lgpl module if canonicalize is also
+     in use.  */
+  return 0;
+#endif
+
+  /* Setup some hierarchy to be used by this test.  Start by removing
+     any leftovers from a previous partial run.  */
+  {
+    int fd;
+    ignore_value (system ("rm -rf " BASE " ise"));
+    ASSERT (mkdir (BASE, 0700) == 0);
+    fd = creat (BASE "/tra", 0600);
+    ASSERT (0 <= fd);
+    ASSERT (close (fd) == 0);
+  }
+
+  /* Check for ., .., intermediate // handling, and for error cases.  */
+  {
+    char *result = canonicalize_file_name (BASE "//./..//" BASE "/tra");
+    ASSERT (result != NULL);
+    ASSERT (strstr (result, "/" BASE "/tra")
+            == result + strlen (result) - strlen ("/" BASE "/tra"));
+    free (result);
+    errno = 0;
+    result = canonicalize_file_name ("");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOENT);
+    errno = 0;
+    result = canonicalize_file_name (null_ptr ());
+    ASSERT (result == NULL);
+    ASSERT (errno == EINVAL);
+  }
+
+  /* Check that a non-directory with trailing slash yields NULL.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name (BASE "/tra/");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOTDIR);
+  }
+
+  /* Check that a missing directory yields NULL.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name (BASE "/zzz/..");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOENT);
+  }
+
+  /* From here on out, tests involve symlinks.  */
+  if (symlink (BASE "/ket", "ise") != 0)
+    {
+      ASSERT (remove (BASE "/tra") == 0);
+      ASSERT (rmdir (BASE) == 0);
+      fputs ("skipping test: symlinks not supported on this file system\n",
+             stderr);
+      return 77;
+    }
+  ASSERT (symlink ("bef", BASE "/plo") == 0);
+  ASSERT (symlink ("tra", BASE "/huk") == 0);
+  ASSERT (symlink ("lum", BASE "/bef") == 0);
+  ASSERT (symlink ("wum", BASE "/ouk") == 0);
+  ASSERT (symlink ("../ise", BASE "/ket") == 0);
+  ASSERT (mkdir (BASE "/lum", 0700) == 0);
+  ASSERT (symlink ("//.//../..", BASE "/droot") == 0);
+
+  /* Check that the symbolic link to a file can be resolved.  */
+  {
+    char *result1 = canonicalize_file_name (BASE "/huk");
+    char *result2 = canonicalize_file_name (BASE "/tra");
+    ASSERT (result1 != NULL);
+    ASSERT (result2 != NULL);
+    ASSERT (strcmp (result1, result2) == 0);
+    ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/tra"),
+                    "/" BASE "/tra") == 0);
+    free (result1);
+    free (result2);
+  }
+
+  /* Check that the symbolic link to a directory can be resolved.  */
+  {
+    char *result1 = canonicalize_file_name (BASE "/plo");
+    char *result2 = canonicalize_file_name (BASE "/bef");
+    char *result3 = canonicalize_file_name (BASE "/lum");
+    ASSERT (result1 != NULL);
+    ASSERT (result2 != NULL);
+    ASSERT (result3 != NULL);
+    ASSERT (strcmp (result1, result2) == 0);
+    ASSERT (strcmp (result2, result3) == 0);
+    ASSERT (strcmp (result1 + strlen (result1) - strlen ("/" BASE "/lum"),
+                    "/" BASE "/lum") == 0);
+    free (result1);
+    free (result2);
+    free (result3);
+  }
+
+  /* Check that a symbolic link to a nonexistent file yields NULL.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name (BASE "/ouk");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOENT);
+  }
+
+  /* Check that a non-directory symlink with trailing slash yields NULL.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name (BASE "/huk/");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOTDIR);
+  }
+
+  /* Check that a missing directory via symlink yields NULL.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name (BASE "/ouk/..");
+    ASSERT (result == NULL);
+    ASSERT (errno == ENOENT);
+  }
+
+  /* Check that a loop of symbolic links is detected.  */
+  {
+    char *result;
+    errno = 0;
+    result = canonicalize_file_name ("ise");
+    ASSERT (result == NULL);
+    ASSERT (errno == ELOOP);
+  }
+
+  /* Check that leading // is honored correctly.  */
+  {
+    struct stat st1;
+    struct stat st2;
+    char *result1 = canonicalize_file_name ("//.");
+    char *result2 = canonicalize_file_name (BASE "/droot");
+    ASSERT (result1);
+    ASSERT (result2);
+    ASSERT (stat ("/", &st1) == 0);
+    ASSERT (stat ("//", &st2) == 0);
+    if (SAME_INODE (st1, st2))
+      {
+        ASSERT (strcmp (result1, "/") == 0);
+        ASSERT (strcmp (result2, "/") == 0);
+      }
+    else
+      {
+        ASSERT (strcmp (result1, "//") == 0);
+        ASSERT (strcmp (result2, "//") == 0);
+      }
+    free (result1);
+    free (result2);
+  }
+
+
+  /* Cleanup.  */
+  ASSERT (remove (BASE "/droot") == 0);
+  ASSERT (remove (BASE "/plo") == 0);
+  ASSERT (remove (BASE "/huk") == 0);
+  ASSERT (remove (BASE "/bef") == 0);
+  ASSERT (remove (BASE "/ouk") == 0);
+  ASSERT (remove (BASE "/ket") == 0);
+  ASSERT (remove (BASE "/lum") == 0);
+  ASSERT (remove (BASE "/tra") == 0);
+  ASSERT (remove (BASE) == 0);
+  ASSERT (remove ("ise") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-cloexec.c b/tests/gnu/test-cloexec.c
new file mode 100755
index 00000000..801ac232
--- /dev/null
+++ b/tests/gnu/test-cloexec.c
@@ -0,0 +1,141 @@
+/* Test duplicating non-inheritable file descriptors.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include "cloexec.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#include "binary-io.h"
+#include "macros.h"
+
+/* Return non-zero if FD is open and inheritable across exec/spawn.  */
+static int
+is_inheritable (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  DWORD flags;
+  if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0)
+    return 0;
+  return (flags & HANDLE_FLAG_INHERIT) != 0;
+#else
+# ifndef F_GETFD
+#  error Please port fcntl to your platform
+# endif
+  int i = fcntl (fd, F_GETFD);
+  return 0 <= i && (i & FD_CLOEXEC) == 0;
+#endif
+}
+
+#if !O_BINARY
+# define setmode(f,m) zero ()
+static int zero (void) { return 0; }
+#endif
+
+/* Return non-zero if FD is open in the given MODE, which is either
+   O_TEXT or O_BINARY.  */
+static int
+is_mode (int fd, int mode)
+{
+  int value = setmode (fd, O_BINARY);
+  setmode (fd, value);
+  return mode == value;
+}
+
+int
+main (void)
+{
+  const char *file = "test-cloexec.tmp";
+  int fd = creat (file, 0600);
+  int fd2;
+
+  /* Assume std descriptors were provided by invoker.  */
+  ASSERT (STDERR_FILENO < fd);
+  ASSERT (is_inheritable (fd));
+
+  /* Normal use of set_cloexec_flag.  */
+  ASSERT (set_cloexec_flag (fd, true) == 0);
+#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+  ASSERT (!is_inheritable (fd));
+#endif
+  ASSERT (set_cloexec_flag (fd, false) == 0);
+  ASSERT (is_inheritable (fd));
+
+  /* Normal use of dup_cloexec.  */
+  fd2 = dup_cloexec (fd);
+  ASSERT (fd < fd2);
+  ASSERT (!is_inheritable (fd2));
+  ASSERT (close (fd) == 0);
+  ASSERT (dup_cloexec (fd2) == fd);
+  ASSERT (!is_inheritable (fd));
+  ASSERT (close (fd2) == 0);
+
+  /* On systems that distinguish between text and binary mode,
+     dup_cloexec reuses the mode of the source.  */
+  setmode (fd, O_BINARY);
+  ASSERT (is_mode (fd, O_BINARY));
+  fd2 = dup_cloexec (fd);
+  ASSERT (fd < fd2);
+  ASSERT (is_mode (fd2, O_BINARY));
+  ASSERT (close (fd2) == 0);
+  setmode (fd, O_TEXT);
+  ASSERT (is_mode (fd, O_TEXT));
+  fd2 = dup_cloexec (fd);
+  ASSERT (fd < fd2);
+  ASSERT (is_mode (fd2, O_TEXT));
+  ASSERT (close (fd2) == 0);
+
+  /* Test error handling.  */
+  errno = 0;
+  ASSERT (set_cloexec_flag (-1, false) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (set_cloexec_flag (10000000, false) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (set_cloexec_flag (fd2, false) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (dup_cloexec (-1) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (dup_cloexec (10000000) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (dup_cloexec (fd2) == -1);
+  ASSERT (errno == EBADF);
+
+  /* Clean up.  */
+  ASSERT (close (fd) == 0);
+  ASSERT (unlink (file) == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-closein.c b/tests/gnu/test-closein.c
new file mode 100755
index 00000000..6b99b186
--- /dev/null
+++ b/tests/gnu/test-closein.c
@@ -0,0 +1,53 @@
+/* Test of closein module.
+   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Eric Blake.  */
+
+#include <config.h>
+
+#include "closein.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "binary-io.h"
+#include "ignore-value.h"
+
+char *program_name;
+
+/* With no arguments, do nothing.  With arguments, attempt to consume
+   first 6 bytes of stdin.  In either case, let exit() take care of
+   closing std streams and changing exit status if ferror(stdin).  */
+int
+main (int argc, char **argv)
+{
+  char buf[7];
+  atexit (close_stdin);
+  program_name = argv[0];
+
+  /* close_stdin currently relies on ftell, but mingw ftell is
+     unreliable on text mode input.  */
+  SET_BINARY (0);
+
+  if (argc > 2)
+    close (0);
+
+  if (argc > 1)
+    ignore_value (fread (buf, 1, 6, stdin));
+  return 0;
+}
diff --git a/tests/gnu/test-closein.sh b/tests/gnu/test-closein.sh
new file mode 100755
index 00000000..a75929a2
--- /dev/null
+++ b/tests/gnu/test-closein.sh
@@ -0,0 +1,38 @@
+#!/bin/sh
+
+tmpfiles=
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+p=t-closein-
+tmpfiles="${p}in.tmp ${p}xout.tmp ${p}out1.tmp ${p}out2.tmp"
+
+echo Hello world > ${p}in.tmp
+echo world > ${p}xout.tmp
+
+# Test with seekable stdin; followon process must see remaining data
+(./test-closein${EXEEXT}; cat) < ${p}in.tmp > ${p}out1.tmp || exit 1
+cmp ${p}out1.tmp ${p}in.tmp || exit 1
+
+(./test-closein${EXEEXT} consume; cat) < ${p}in.tmp > ${p}out2.tmp || exit 1
+cmp ${p}out2.tmp ${p}xout.tmp || exit 1
+
+# Test for lack of error on pipe.  Ignore any EPIPE failures from cat.
+cat ${p}in.tmp 2>/dev/null | ./test-closein${EXEEXT} || exit 1
+
+cat ${p}in.tmp 2>/dev/null | ./test-closein${EXEEXT} consume || exit 1
+
+# Test for lack of error when nothing is read
+./test-closein${EXEEXT} </dev/null || exit 1
+
+./test-closein${EXEEXT} <&- || exit 1
+
+# Test for no error when EOF is read early
+./test-closein${EXEEXT} consume </dev/null || exit 1
+
+# Test for error when read fails because no file available
+./test-closein${EXEEXT} consume close <&- 2>/dev/null && exit 1
+
+# Cleanup
+rm -fr $tmpfiles
+
+exit 0
diff --git a/tests/gnu/test-dirname.c b/tests/gnu/test-dirname.c
new file mode 100755
index 00000000..88cb8d65
--- /dev/null
+++ b/tests/gnu/test-dirname.c
@@ -0,0 +1,191 @@
+/* Test the gnulib dirname module.
+   Copyright (C) 2005, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "dirname.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+struct test {
+  const char *name;     /* Name under test.  */
+  const char *dir;      /* dir_name (name).  */
+  const char *last;     /* last_component (name).  */
+  const char *base;     /* base_name (name).  */
+  const char *stripped; /* name after strip_trailing_slashes (name).  */
+  bool modified;        /* result of strip_trailing_slashes (name).  */
+  bool absolute;        /* IS_ABSOLUTE_FILE_NAME (name).  */
+};
+
+static struct test tests[] = {
+  {"d/f",       "d",    "f",    "f",    "d/f",  false,  false},
+  {"/d/f",      "/d",   "f",    "f",    "/d/f", false,  true},
+  {"d/f/",      "d",    "f/",   "f/",   "d/f",  true,   false},
+  {"d/f//",     "d",    "f//",  "f/",   "d/f",  true,   false},
+  {"f",         ".",    "f",    "f",    "f",    false,  false},
+  {"/",         "/",    "",     "/",    "/",    false,  true},
+#if DOUBLE_SLASH_IS_DISTINCT_ROOT
+  {"//",        "//",   "",     "//",   "//",   false,  true},
+  {"//d",       "//",   "d",    "d",    "//d",  false,  true},
+#else
+  {"//",        "/",    "",     "/",    "/",    true,   true},
+  {"//d",       "/",    "d",    "d",    "//d",  false,  true},
+#endif
+  {"///",       "/",    "",     "/",    "/",    true,   true},
+  {"///a///",   "/",    "a///", "a/",   "///a", true,   true},
+  /* POSIX requires dirname("") and basename("") to both return ".",
+     but dir_name and base_name are defined differently.  */
+  {"",          ".",    "",     "",     "",     false,  false},
+  {".",         ".",    ".",    ".",    ".",    false,  false},
+  {"..",        ".",    "..",   "..",   "..",   false,  false},
+#if FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
+  {"a\\",       ".",    "a\\",  "a\\",  "a",    true,   false},
+  {"a\\b",      "a",    "b",    "b",    "a\\b", false,  false},
+  {"\\",        "\\",   "",     "\\",   "\\",   false,  true},
+  {"\\/\\",     "\\",   "",     "\\",   "\\",   true,   true},
+  {"\\\\/",     "\\",   "",     "\\",   "\\",   true,   true},
+  {"\\//",      "\\",   "",     "\\",   "\\",   true,   true},
+  {"//\\",      "/",    "",     "/",    "/",    true,   true},
+#else
+  {"a\\",       ".",    "a\\",  "a\\",  "a\\",  false,  false},
+  {"a\\b",      ".",    "a\\b", "a\\b", "a\\b", false,  false},
+  {"\\",        ".",    "\\",   "\\",   "\\",   false,  false},
+  {"\\/\\",     "\\",   "\\",   "\\",   "\\/\\",false,  false},
+  {"\\\\/",     ".",    "\\\\/","\\\\/","\\\\", true,   false},
+  {"\\//",      ".",    "\\//", "\\/",  "\\",   true,   false},
+# if DOUBLE_SLASH_IS_DISTINCT_ROOT
+  {"//\\",      "//",   "\\",   "\\",   "//\\", false,  true},
+# else
+  {"//\\",      "/",    "\\",   "\\",   "//\\", false,  true},
+# endif
+#endif
+#if FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX
+# if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
+  {"c:",        "c:",   "",     "c:",   "c:",   false,  false},
+  {"c:/",       "c:/",  "",     "c:/",  "c:/",  false,  true},
+  {"c://",      "c:/",  "",     "c:/",  "c:/",  true,   true},
+  {"c:/d",      "c:/",  "d",    "d",    "c:/d", false,  true},
+  {"c://d",     "c:/",  "d",    "d",    "c://d",false,  true},
+  {"c:/d/",     "c:/",  "d/",   "d/",   "c:/d", true,   true},
+  {"c:/d/f",    "c:/d", "f",    "f",    "c:/d/f",false, true},
+  {"c:d",       "c:.",  "d",    "d",    "c:d",  false,  false},
+  {"c:d/",      "c:.",  "d/",   "d/",   "c:d",  true,   false},
+  {"c:d/f",     "c:d",  "f",    "f",    "c:d/f",false,  false},
+  {"a:b:c",     "a:.",  "b:c",  "./b:c","a:b:c",false,  false},
+  {"a/b:c",     "a",    "b:c",  "./b:c","a/b:c",false,  false},
+  {"a/b:c/",    "a",    "b:c/", "./b:c/","a/b:c",true,  false},
+# else /* ! FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE */
+  {"c:",        "c:",   "",     "c:",   "c:",   false,  true},
+  {"c:/",       "c:",   "",     "c:",   "c:",   true,   true},
+  {"c://",      "c:",   "",     "c:",   "c:",   true,   true},
+  {"c:/d",      "c:",   "d",    "d",    "c:/d", false,  true},
+  {"c://d",     "c:",   "d",    "d",    "c://d",false,  true},
+  {"c:/d/",     "c:",   "d/",   "d/",   "c:/d", true,   true},
+  {"c:/d/f",    "c:/d", "f",    "f",    "c:/d/f",false, true},
+  {"c:d",       "c:",   "d",    "d",    "c:d",  false,  true},
+  {"c:d/",      "c:",   "d/",   "d/",   "c:d",  true,   true},
+  {"c:d/f",     "c:d",  "f",    "f",    "c:d/f",false,  true},
+  {"a:b:c",     "a:",   "b:c",  "./b:c","a:b:c",false,  true},
+  {"a/b:c",     "a",    "b:c",  "./b:c","a/b:c",false,  false},
+  {"a/b:c/",    "a",    "b:c/", "./b:c/","a/b:c",true,  false},
+# endif
+#else /* ! FILE_SYSTEM_ACCEPTS_DRIVE_LETTER_PREFIX */
+  {"c:",        ".",    "c:",   "c:",   "c:",   false,  false},
+  {"c:/",       ".",    "c:/",  "c:/",  "c:",   true,   false},
+  {"c://",      ".",    "c://", "c:/",  "c:",   true,   false},
+  {"c:/d",      "c:",   "d",    "d",    "c:/d", false,  false},
+  {"c://d",     "c:",   "d",    "d",    "c://d",false,  false},
+  {"c:/d/",     "c:",   "d/",   "d/",   "c:/d", true,   false},
+  {"c:/d/f",    "c:/d", "f",    "f",    "c:/d/f",false, false},
+  {"c:d",       ".",    "c:d",  "c:d",  "c:d",  false,  false},
+  {"c:d/",      ".",    "c:d/", "c:d/", "c:d",  true,   false},
+  {"c:d/f",     "c:d",  "f",    "f",    "c:d/f",false,  false},
+  {"a:b:c",     ".",    "a:b:c","a:b:c","a:b:c",false,  false},
+  {"a/b:c",     "a",    "b:c",  "b:c",  "a/b:c",false,  false},
+  {"a/b:c/",    "a",    "b:c/", "b:c/", "a/b:c",true,   false},
+#endif
+  {"1:",        ".",    "1:",   "1:",   "1:",   false,  false},
+  {"1:/",       ".",    "1:/",  "1:/",  "1:",   true,   false},
+  {"/:",        "/",    ":",    ":",    "/:",   false,  true},
+  {"/:/",       "/",    ":/",   ":/",   "/:",   true,   true},
+  /* End sentinel.  */
+  {NULL,        NULL,   NULL,   NULL,   NULL,   false,  false}
+};
+
+int
+main (void)
+{
+  struct test *t;
+  bool ok = true;
+
+  for (t = tests; t->name; t++)
+    {
+      char *dir = dir_name (t->name);
+      int dirlen = dir_len (t->name);
+      char *last = last_component (t->name);
+      char *base = base_name (t->name);
+      int baselen = base_len (base);
+      char *stripped = strdup (t->name);
+      bool modified = strip_trailing_slashes (stripped);
+      bool absolute = IS_ABSOLUTE_FILE_NAME (t->name);
+      if (! (strcmp (dir, t->dir) == 0
+             && (dirlen == strlen (dir)
+                 || (dirlen + 1 == strlen (dir) && dir[dirlen] == '.'))))
+        {
+          ok = false;
+          printf ("dir_name `%s': got `%s' len %d, expected `%s' len %ld\n",
+                  t->name, dir, dirlen,
+                  t->dir, (unsigned long) strlen (t->dir));
+        }
+      if (strcmp (last, t->last))
+        {
+          ok = false;
+          printf ("last_component `%s': got `%s', expected `%s'\n",
+                  t->name, last, t->last);
+        }
+      if (! (strcmp (base, t->base) == 0
+             && (baselen == strlen (base)
+                 || (baselen + 1 == strlen (base)
+                     && ISSLASH (base[baselen])))))
+        {
+          ok = false;
+          printf ("base_name `%s': got `%s' len %d, expected `%s' len %ld\n",
+                  t->name, base, baselen,
+                  t->base, (unsigned long) strlen (t->base));
+        }
+      if (strcmp (stripped, t->stripped) || modified != t->modified)
+        {
+          ok = false;
+          printf ("strip_trailing_slashes `%s': got %s %s, expected %s %s\n",
+                  t->name, stripped, modified ? "changed" : "unchanged",
+                  t->stripped, t->modified ? "changed" : "unchanged");
+        }
+      if (t->absolute != absolute)
+        {
+          ok = false;
+          printf ("`%s': got %s, expected %s\n", t->name,
+                  absolute ? "absolute" : "relative",
+                  t->absolute ? "absolute" : "relative");
+        }
+      free (dir);
+      free (base);
+      free (stripped);
+    }
+  return ok ? 0 : 1;
+}
diff --git a/tests/gnu/test-dup-safer.c b/tests/gnu/test-dup-safer.c
new file mode 100755
index 00000000..28f13177
--- /dev/null
+++ b/tests/gnu/test-dup-safer.c
@@ -0,0 +1,175 @@
+/* Test that dup_safer leaves standard fds alone.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include "unistd--.h"
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+#include "binary-io.h"
+#include "cloexec.h"
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#if !O_BINARY
+# define setmode(f,m) zero ()
+static int zero (void) { return 0; }
+#endif
+#ifndef O_CLOEXEC
+# define O_CLOEXEC 0
+#endif
+
+/* This test intentionally closes stderr.  So, we arrange to have fd 10
+   (outside the range of interesting fd's during the test) set up to
+   duplicate the original stderr.  */
+
+#define BACKUP_STDERR_FILENO 10
+#define ASSERT_STREAM myerr
+#include "macros.h"
+
+static FILE *myerr;
+
+/* Return true if FD is open.  */
+static bool
+is_open (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
+#else
+# ifndef F_GETFL
+#  error Please port fcntl to your platform
+# endif
+  return 0 <= fcntl (fd, F_GETFL);
+#endif
+}
+
+/* Return true if FD is open and inheritable across exec/spawn.  */
+static bool
+is_inheritable (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  DWORD flags;
+  if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0)
+    return 0;
+  return (flags & HANDLE_FLAG_INHERIT) != 0;
+#else
+# ifndef F_GETFD
+#  error Please port fcntl to your platform
+# endif
+  int i = fcntl (fd, F_GETFD);
+  return 0 <= i && (i & FD_CLOEXEC) == 0;
+#endif
+}
+
+/* Return true if FD is open in the given MODE, which is either
+   O_TEXT or O_BINARY.  */
+static bool
+is_mode (int fd, int mode)
+{
+  int value = setmode (fd, O_BINARY);
+  setmode (fd, value);
+  return mode == value;
+}
+
+#define witness "test-dup-safer.txt"
+
+int
+main (void)
+{
+  int i;
+  int fd;
+
+  /* We close fd 2 later, so save it in fd 10.  */
+  if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO
+      || (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL)
+    return 2;
+
+  /* Create file for later checks.  */
+  fd = creat (witness, 0600);
+  ASSERT (STDERR_FILENO < fd);
+
+  /* Four iterations, with progressively more standard descriptors
+     closed.  */
+  for (i = -1; i <= STDERR_FILENO; i++)
+    {
+      if (0 <= i)
+        ASSERT (close (i) == 0);
+
+      /* Detect errors.  */
+      errno = 0;
+      ASSERT (dup (-1) == -1);
+      ASSERT (errno == EBADF);
+      errno = 0;
+      ASSERT (dup (10000000) == -1);
+      ASSERT (errno == EBADF);
+      close (fd + 1);
+      errno = 0;
+      ASSERT (dup (fd + 1) == -1);
+      ASSERT (errno == EBADF);
+
+      /* Preserve text vs. binary.  */
+      setmode (fd, O_BINARY);
+      ASSERT (dup (fd) == fd + 1);
+      ASSERT (is_open (fd + 1));
+      ASSERT (is_inheritable (fd + 1));
+      ASSERT (is_mode (fd + 1, O_BINARY));
+
+      ASSERT (close (fd + 1) == 0);
+      setmode (fd, O_TEXT);
+      ASSERT (dup (fd) == fd + 1);
+      ASSERT (is_open (fd + 1));
+      ASSERT (is_inheritable (fd + 1));
+      ASSERT (is_mode (fd + 1, O_TEXT));
+
+      /* Create cloexec copy.  */
+      ASSERT (close (fd + 1) == 0);
+      ASSERT (fd_safer_flag (dup_cloexec (fd), O_CLOEXEC) == fd + 1);
+      ASSERT (set_cloexec_flag (fd + 1, true) == 0);
+      ASSERT (is_open (fd + 1));
+      ASSERT (!is_inheritable (fd + 1));
+      ASSERT (close (fd) == 0);
+
+      /* dup always creates inheritable copies.  Also, check that
+         earliest slot past std fds is used.  */
+      ASSERT (dup (fd + 1) == fd);
+      ASSERT (is_open (fd));
+      ASSERT (is_inheritable (fd));
+      ASSERT (close (fd + 1) == 0);
+    }
+
+  /* Cleanup.  */
+  ASSERT (close (fd) == 0);
+  ASSERT (unlink (witness) == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-dup2.c b/tests/gnu/test-dup2.c
new file mode 100755
index 00000000..3bad63a0
--- /dev/null
+++ b/tests/gnu/test-dup2.c
@@ -0,0 +1,193 @@
+/* Test duplicating file descriptors.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (dup2, int, (int, int));
+
+#include <errno.h>
+#include <fcntl.h>
+
+#include "binary-io.h"
+
+#if GNULIB_CLOEXEC
+# include "cloexec.h"
+#endif
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#include "macros.h"
+
+/* Return non-zero if FD is open.  */
+static int
+is_open (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
+#else
+# ifndef F_GETFL
+#  error Please port fcntl to your platform
+# endif
+  return 0 <= fcntl (fd, F_GETFL);
+#endif
+}
+
+#if GNULIB_CLOEXEC
+/* Return non-zero if FD is open and inheritable across exec/spawn.  */
+static int
+is_inheritable (int fd)
+{
+# if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  DWORD flags;
+  if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0)
+    return 0;
+  return (flags & HANDLE_FLAG_INHERIT) != 0;
+# else
+#  ifndef F_GETFD
+#   error Please port fcntl to your platform
+#  endif
+  int i = fcntl (fd, F_GETFD);
+  return 0 <= i && (i & FD_CLOEXEC) == 0;
+# endif
+}
+#endif /* GNULIB_CLOEXEC */
+
+#if !O_BINARY
+# define setmode(f,m) zero ()
+static int zero (void) { return 0; }
+#endif
+
+/* Return non-zero if FD is open in the given MODE, which is either
+   O_TEXT or O_BINARY.  */
+static int
+is_mode (int fd, int mode)
+{
+  int value = setmode (fd, O_BINARY);
+  setmode (fd, value);
+  return mode == value;
+}
+
+int
+main (void)
+{
+  const char *file = "test-dup2.tmp";
+  char buffer[1];
+  int fd = open (file, O_CREAT | O_TRUNC | O_RDWR, 0600);
+
+  /* Assume std descriptors were provided by invoker.  */
+  ASSERT (STDERR_FILENO < fd);
+  ASSERT (is_open (fd));
+  /* Ignore any other fd's leaked into this process.  */
+  close (fd + 1);
+  close (fd + 2);
+  ASSERT (!is_open (fd + 1));
+  ASSERT (!is_open (fd + 2));
+
+  /* Assigning to self must be a no-op.  */
+  ASSERT (dup2 (fd, fd) == fd);
+  ASSERT (is_open (fd));
+
+  /* The source must be valid.  */
+  errno = 0;
+  ASSERT (dup2 (-1, fd) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (dup2 (AT_FDCWD, fd) == -1);
+  ASSERT (errno == EBADF);
+  ASSERT (is_open (fd));
+
+  /* If the source is not open, then the destination is unaffected.  */
+  errno = 0;
+  ASSERT (dup2 (fd + 1, fd + 1) == -1);
+  ASSERT (errno == EBADF);
+  ASSERT (!is_open (fd + 1));
+  errno = 0;
+  ASSERT (dup2 (fd + 1, fd) == -1);
+  ASSERT (errno == EBADF);
+  ASSERT (is_open (fd));
+
+  /* The destination must be valid.  */
+  errno = 0;
+  ASSERT (dup2 (fd, -2) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (dup2 (fd, 10000000) == -1);
+  ASSERT (errno == EBADF);
+
+  /* Using dup2 can skip fds.  */
+  ASSERT (dup2 (fd, fd + 2) == fd + 2);
+  ASSERT (is_open (fd));
+  ASSERT (!is_open (fd + 1));
+  ASSERT (is_open (fd + 2));
+
+  /* Verify that dup2 closes the previous occupant of a fd.  */
+  ASSERT (open ("/dev/null", O_WRONLY, 0600) == fd + 1);
+  ASSERT (dup2 (fd + 1, fd) == fd);
+  ASSERT (close (fd + 1) == 0);
+  ASSERT (write (fd, "1", 1) == 1);
+  ASSERT (dup2 (fd + 2, fd) == fd);
+  ASSERT (lseek (fd, 0, SEEK_END) == 0);
+  ASSERT (write (fd + 2, "2", 1) == 1);
+  ASSERT (lseek (fd, 0, SEEK_SET) == 0);
+  ASSERT (read (fd, buffer, 1) == 1);
+  ASSERT (*buffer == '2');
+
+#if GNULIB_CLOEXEC
+  /* Any new fd created by dup2 must not be cloexec.  */
+  ASSERT (close (fd + 2) == 0);
+  ASSERT (dup_cloexec (fd) == fd + 1);
+  ASSERT (!is_inheritable (fd + 1));
+  ASSERT (dup2 (fd + 1, fd + 1) == fd + 1);
+  ASSERT (!is_inheritable (fd + 1));
+  ASSERT (dup2 (fd + 1, fd + 2) == fd + 2);
+  ASSERT (is_inheritable (fd + 2));
+#endif
+
+  /* On systems that distinguish between text and binary mode, dup2
+     reuses the mode of the source.  */
+  setmode (fd, O_BINARY);
+  ASSERT (is_mode (fd, O_BINARY));
+  ASSERT (dup2 (fd, fd + 1) == fd + 1);
+  ASSERT (is_mode (fd + 1, O_BINARY));
+  setmode (fd, O_TEXT);
+  ASSERT (is_mode (fd, O_TEXT));
+  ASSERT (dup2 (fd, fd + 1) == fd + 1);
+  ASSERT (is_mode (fd + 1, O_TEXT));
+
+  /* Clean up.  */
+  ASSERT (close (fd + 2) == 0);
+  ASSERT (close (fd + 1) == 0);
+  ASSERT (close (fd) == 0);
+  ASSERT (unlink (file) == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-environ.c b/tests/gnu/test-environ.c
new file mode 100755
index 00000000..534c4e60
--- /dev/null
+++ b/tests/gnu/test-environ.c
@@ -0,0 +1,44 @@
+/* Test of environ variable.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include <string.h>
+
+int
+main ()
+{
+  /* The environment variables that are set even in the weirdest situations
+     are HOME and PATH.
+     POSIX says that HOME is initialized by the system, and that PATH may be
+     unset.  But in practice it's more frequent to see HOME unset and PATH
+     set.  So we test the presence of PATH.  */
+  char **remaining_variables = environ;
+  char *string;
+
+  for (; (string = *remaining_variables) != NULL; remaining_variables++)
+    {
+      if (strncmp (string, "PATH=", 5) == 0)
+        /* Found the PATH environment variable.  */
+        return 0;
+    }
+  /* Failed to find the PATH environment variable.  */
+  return 1;
+}
diff --git a/tests/gnu/test-errno.c b/tests/gnu/test-errno.c
new file mode 100755
index 00000000..129b236f
--- /dev/null
+++ b/tests/gnu/test-errno.c
@@ -0,0 +1,117 @@
+/* Test of <errno.h> substitute.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <errno.h>
+
+/* Verify that the POSIX mandated errno values exist and can be used as
+   initializers outside of a function.
+   The variable names happen to match the Linux/x86 error numbers.  */
+int e1 = EPERM;
+int e2 = ENOENT;
+int e3 = ESRCH;
+int e4 = EINTR;
+int e5 = EIO;
+int e6 = ENXIO;
+int e7 = E2BIG;
+int e8 = ENOEXEC;
+int e9 = EBADF;
+int e10 = ECHILD;
+int e11 = EAGAIN;
+int e11a = EWOULDBLOCK;
+int e12 = ENOMEM;
+int e13 = EACCES;
+int e14 = EFAULT;
+int e16 = EBUSY;
+int e17 = EEXIST;
+int e18 = EXDEV;
+int e19 = ENODEV;
+int e20 = ENOTDIR;
+int e21 = EISDIR;
+int e22 = EINVAL;
+int e23 = ENFILE;
+int e24 = EMFILE;
+int e25 = ENOTTY;
+int e26 = ETXTBSY;
+int e27 = EFBIG;
+int e28 = ENOSPC;
+int e29 = ESPIPE;
+int e30 = EROFS;
+int e31 = EMLINK;
+int e32 = EPIPE;
+int e33 = EDOM;
+int e34 = ERANGE;
+int e35 = EDEADLK;
+int e36 = ENAMETOOLONG;
+int e37 = ENOLCK;
+int e38 = ENOSYS;
+int e39 = ENOTEMPTY;
+int e40 = ELOOP;
+int e42 = ENOMSG;
+int e43 = EIDRM;
+int e67 = ENOLINK;
+int e71 = EPROTO;
+int e72 = EMULTIHOP;
+int e74 = EBADMSG;
+int e75 = EOVERFLOW;
+int e84 = EILSEQ;
+int e88 = ENOTSOCK;
+int e89 = EDESTADDRREQ;
+int e90 = EMSGSIZE;
+int e91 = EPROTOTYPE;
+int e92 = ENOPROTOOPT;
+int e93 = EPROTONOSUPPORT;
+int e95 = EOPNOTSUPP;
+int e95a = ENOTSUP;
+int e97 = EAFNOSUPPORT;
+int e98 = EADDRINUSE;
+int e99 = EADDRNOTAVAIL;
+int e100 = ENETDOWN;
+int e101 = ENETUNREACH;
+int e102 = ENETRESET;
+int e103 = ECONNABORTED;
+int e104 = ECONNRESET;
+int e105 = ENOBUFS;
+int e106 = EISCONN;
+int e107 = ENOTCONN;
+int e110 = ETIMEDOUT;
+int e111 = ECONNREFUSED;
+int e113 = EHOSTUNREACH;
+int e114 = EALREADY;
+int e115 = EINPROGRESS;
+int e116 = ESTALE;
+int e122 = EDQUOT;
+int e125 = ECANCELED;
+
+/* Don't verify that these errno values are all different, except for possibly
+   EWOULDBLOCK == EAGAIN.  Even Linux/x86 does not pass this check: it has
+   ENOTSUP == EOPNOTSUPP.  */
+
+int
+main ()
+{
+  /* Verify that errno can be assigned.  */
+  errno = EOVERFLOW;
+
+  /* snprintf() callers want to distinguish EINVAL and EOVERFLOW.  */
+  if (errno == EINVAL)
+    return 1;
+
+  return 0;
+}
diff --git a/tests/gnu/test-fcntl-h.c b/tests/gnu/test-fcntl-h.c
new file mode 100755
index 00000000..0ce33f0d
--- /dev/null
+++ b/tests/gnu/test-fcntl-h.c
@@ -0,0 +1,38 @@
+/* Test of <fcntl.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <fcntl.h>
+
+/* Check that the various O_* macros are defined.  */
+int o = O_DIRECT | O_DIRECTORY | O_DSYNC | O_NDELAY | O_NOATIME | O_NONBLOCK
+        | O_NOCTTY | O_NOFOLLOW | O_NOLINKS | O_RSYNC | O_SYNC | O_TTY_INIT
+        | O_BINARY | O_TEXT;
+
+/* Check that the various SEEK_* macros are defined.  */
+int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET };
+
+/* Check that the FD_* macros are defined.  */
+int fd = FD_CLOEXEC;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-fcntl.c b/tests/gnu/test-fcntl.c
new file mode 100755
index 00000000..71dfb986
--- /dev/null
+++ b/tests/gnu/test-fcntl.c
@@ -0,0 +1,346 @@
+/* Test of fcntl(2).
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <fcntl.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fcntl, int, (int, int, ...));
+
+/* Helpers.  */
+#include <errno.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#include "binary-io.h"
+#include "macros.h"
+
+/* Use O_CLOEXEC if available, but test works without it.  */
+#ifndef O_CLOEXEC
+# define O_CLOEXEC 0
+#endif
+
+#if !O_BINARY
+# define setmode(f,m) zero ()
+static int zero (void) { return 0; }
+#endif
+
+/* Return true if FD is open.  */
+static bool
+is_open (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
+#else
+# ifndef F_GETFL
+#  error Please port fcntl to your platform
+# endif
+  return 0 <= fcntl (fd, F_GETFL);
+#endif
+}
+
+/* Return true if FD is open and inheritable across exec/spawn.  */
+static bool
+is_inheritable (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  DWORD flags;
+  if (h == INVALID_HANDLE_VALUE || GetHandleInformation (h, &flags) == 0)
+    return false;
+  return (flags & HANDLE_FLAG_INHERIT) != 0;
+#else
+# ifndef F_GETFD
+#  error Please port fcntl to your platform
+# endif
+  int i = fcntl (fd, F_GETFD);
+  return 0 <= i && (i & FD_CLOEXEC) == 0;
+#endif
+}
+
+/* Return non-zero if FD is open in the given MODE, which is either
+   O_TEXT or O_BINARY.  */
+static bool
+is_mode (int fd, int mode)
+{
+  int value = setmode (fd, O_BINARY);
+  setmode (fd, value);
+  return mode == value;
+}
+
+/* Since native fcntl can have more supported operations than our
+   replacement is aware of, and since various operations assign
+   different types to the vararg argument, a wrapper around fcntl must
+   be able to pass a vararg of unknown type on through to the original
+   fcntl.  Make sure that this works properly: func1 behaves like the
+   original fcntl interpreting the vararg as an int or a pointer to a
+   struct, and func2 behaves like rpl_fcntl that doesn't know what
+   type to forward.  */
+struct dummy_struct
+{
+  long filler;
+  int value;
+};
+static int
+func1 (int a, ...)
+{
+  va_list arg;
+  int i;
+  va_start (arg, a);
+  if (a < 4)
+    i = va_arg (arg, int);
+  else
+    {
+      struct dummy_struct *s = va_arg (arg, struct dummy_struct *);
+      i = s->value;
+    }
+  va_end (arg);
+  return i;
+}
+static int
+func2 (int a, ...)
+{
+  va_list arg;
+  void *p;
+  va_start (arg, a);
+  p = va_arg (arg, void *);
+  va_end (arg);
+  return func1 (a, p);
+}
+
+/* Ensure that all supported fcntl actions are distinct, and
+   usable in preprocessor expressions.  */
+static void
+check_flags (void)
+{
+  switch (0)
+    {
+    case F_DUPFD:
+#if F_DUPFD
+#endif
+
+    case F_DUPFD_CLOEXEC:
+#if F_DUPFD_CLOEXEC
+#endif
+
+    case F_GETFD:
+#if F_GETFD
+#endif
+
+#ifdef F_SETFD
+    case F_SETFD:
+# if F_SETFD
+# endif
+#endif
+
+#ifdef F_GETFL
+    case F_GETFL:
+# if F_GETFL
+# endif
+#endif
+
+#ifdef F_SETFL
+    case F_SETFL:
+# if F_SETFL
+# endif
+#endif
+
+#ifdef F_GETOWN
+    case F_GETOWN:
+# if F_GETOWN
+# endif
+#endif
+
+#ifdef F_SETOWN
+    case F_SETOWN:
+# if F_SETOWN
+# endif
+#endif
+
+#ifdef F_GETLK
+    case F_GETLK:
+# if F_GETLK
+# endif
+#endif
+
+#ifdef F_SETLK
+    case F_SETLK:
+# if F_SETLK
+# endif
+#endif
+
+#ifdef F_SETLKW
+    case F_SETLKW:
+# if F_SETLKW
+# endif
+#endif
+
+      ;
+    }
+}
+
+int
+main (void)
+{
+  const char *file = "test-fcntl.tmp";
+  int fd;
+
+  /* Sanity check that rpl_fcntl is likely to work.  */
+  ASSERT (func2 (1, 2) == 2);
+  ASSERT (func2 (2, -2) == -2);
+  ASSERT (func2 (3, 0x80000000) == 0x80000000);
+  {
+    struct dummy_struct s = { 0L, 4 };
+    ASSERT (func2 (4, &s) == 4);
+  }
+  check_flags ();
+
+  /* Assume std descriptors were provided by invoker, and ignore fds
+     that might have been inherited.  */
+  fd = creat (file, 0600);
+  ASSERT (STDERR_FILENO < fd);
+  close (fd + 1);
+  close (fd + 2);
+
+  /* For F_DUPFD*, the source must be valid.  */
+  errno = 0;
+  ASSERT (fcntl (-1, F_DUPFD, 0) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (fd + 1, F_DUPFD, 0) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (10000000, F_DUPFD, 0) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (-1, F_DUPFD_CLOEXEC, 0) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (fd + 1, F_DUPFD_CLOEXEC, 0) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (10000000, F_DUPFD_CLOEXEC, 0) == -1);
+  ASSERT (errno == EBADF);
+
+  /* For F_DUPFD*, the destination must be valid.  */
+  ASSERT (getdtablesize () < 10000000);
+  errno = 0;
+  ASSERT (fcntl (fd, F_DUPFD, -1) == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (fcntl (fd, F_DUPFD, 10000000) == -1);
+  ASSERT (errno == EINVAL);
+  ASSERT (getdtablesize () < 10000000);
+  errno = 0;
+  ASSERT (fcntl (fd, F_DUPFD_CLOEXEC, -1) == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (fcntl (fd, F_DUPFD_CLOEXEC, 10000000) == -1);
+  ASSERT (errno == EINVAL);
+
+  /* For F_DUPFD*, check for correct inheritance, as well as
+     preservation of text vs. binary.  */
+  setmode (fd, O_BINARY);
+  ASSERT (is_open (fd));
+  ASSERT (!is_open (fd + 1));
+  ASSERT (!is_open (fd + 2));
+  ASSERT (is_inheritable (fd));
+  ASSERT (is_mode (fd, O_BINARY));
+
+  ASSERT (fcntl (fd, F_DUPFD, fd) == fd + 1);
+  ASSERT (is_open (fd));
+  ASSERT (is_open (fd + 1));
+  ASSERT (!is_open (fd + 2));
+  ASSERT (is_inheritable (fd + 1));
+  ASSERT (is_mode (fd, O_BINARY));
+  ASSERT (is_mode (fd + 1, O_BINARY));
+  ASSERT (close (fd + 1) == 0);
+
+  ASSERT (fcntl (fd, F_DUPFD_CLOEXEC, fd + 2) == fd + 2);
+  ASSERT (is_open (fd));
+  ASSERT (!is_open (fd + 1));
+  ASSERT (is_open (fd + 2));
+  ASSERT (is_inheritable (fd));
+  ASSERT (!is_inheritable (fd + 2));
+  ASSERT (is_mode (fd, O_BINARY));
+  ASSERT (is_mode (fd + 2, O_BINARY));
+  ASSERT (close (fd) == 0);
+
+  setmode (fd + 2, O_TEXT);
+  ASSERT (fcntl (fd + 2, F_DUPFD, fd + 1) == fd + 1);
+  ASSERT (!is_open (fd));
+  ASSERT (is_open (fd + 1));
+  ASSERT (is_open (fd + 2));
+  ASSERT (is_inheritable (fd + 1));
+  ASSERT (!is_inheritable (fd + 2));
+  ASSERT (is_mode (fd + 1, O_TEXT));
+  ASSERT (is_mode (fd + 2, O_TEXT));
+  ASSERT (close (fd + 1) == 0);
+
+  ASSERT (fcntl (fd + 2, F_DUPFD_CLOEXEC, 0) == fd);
+  ASSERT (is_open (fd));
+  ASSERT (!is_open (fd + 1));
+  ASSERT (is_open (fd + 2));
+  ASSERT (!is_inheritable (fd));
+  ASSERT (!is_inheritable (fd + 2));
+  ASSERT (is_mode (fd, O_TEXT));
+  ASSERT (is_mode (fd + 2, O_TEXT));
+  ASSERT (close (fd + 2) == 0);
+
+  /* Test F_GETFD.  */
+  errno = 0;
+  ASSERT (fcntl (-1, F_GETFD) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (fd + 1, F_GETFD) == -1);
+  ASSERT (errno == EBADF);
+  errno = 0;
+  ASSERT (fcntl (10000000, F_GETFD) == -1);
+  ASSERT (errno == EBADF);
+  {
+    int result = fcntl (fd, F_GETFD);
+    ASSERT (0 <= result);
+    ASSERT ((result & FD_CLOEXEC) == FD_CLOEXEC);
+    ASSERT (dup (fd) == fd + 1);
+    result = fcntl (fd + 1, F_GETFD);
+    ASSERT (0 <= result);
+    ASSERT ((result & FD_CLOEXEC) == 0);
+    ASSERT (close (fd + 1) == 0);
+  }
+
+  /* Cleanup.  */
+  ASSERT (close (fd) == 0);
+  ASSERT (unlink (file) == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-fflush.c b/tests/gnu/test-fflush.c
new file mode 100755
index 00000000..12403e2a
--- /dev/null
+++ b/tests/gnu/test-fflush.c
@@ -0,0 +1,145 @@
+/* Test of POSIX compatible fflush() function.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake, 2007.  */
+
+#include <config.h>
+
+/* None of the files accessed by this test are large, so disable the
+   ftell link warning if we are not using the gnulib ftell module.  */
+#define _GL_NO_LARGE_FILES
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fflush, int, (FILE *));
+
+#include <unistd.h>
+
+int
+main (void)
+{
+  FILE *f;
+  char buffer[10];
+  int fd;
+
+  /* Create test file.  */
+  f = fopen ("test-fflush.txt", "w");
+  if (!f || fwrite ("1234567890ABCDEFG", 1, 17, f) != 17 || fclose (f) != 0)
+    {
+      fputs ("Failed to create sample file.\n", stderr);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+
+  /* Test fflush.  */
+  f = fopen ("test-fflush.txt", "r");
+  fd = fileno (f);
+  if (!f || 0 > fd || fread (buffer, 1, 5, f) != 5)
+    {
+      fputs ("Failed initial read of sample file.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* For deterministic results, ensure f read a bigger buffer.
+     This is not the case on BeOS, nor on uClibc.  */
+#if !(defined __BEOS__ || defined __UCLIBC__)
+  if (lseek (fd, 0, SEEK_CUR) == 5)
+    {
+      fputs ("Sample file was not buffered after fread.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+#endif
+  /* POSIX requires fflush-fseek to set file offset of fd.  */
+  if (fflush (f) != 0 || fseeko (f, 0, SEEK_CUR) != 0)
+    {
+      fputs ("Failed to flush-fseek sample file.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* Check that offset is correct.  */
+  if (lseek (fd, 0, SEEK_CUR) != 5)
+    {
+      fprintf (stderr, "File offset is wrong after fseek: %ld.\n",
+               (long) lseek (fd, 0, SEEK_CUR));
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  if (ftell (f) != 5)
+    {
+      fprintf (stderr, "ftell result is wrong after fseek: %ld.\n",
+               (long) ftell (f));
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* Check that file reading resumes at correct location.  */
+  if (fgetc (f) != '6')
+    {
+      fputs ("Failed to read next byte after fseek.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* For deterministic results, ensure f read a bigger buffer.  */
+  if (lseek (fd, 0, SEEK_CUR) == 6)
+    {
+      fputs ("Sample file was not buffered after fgetc.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* POSIX requires fflush-fseeko to set file offset of fd.  */
+  if (fflush (f) != 0 || fseeko (f, 0, SEEK_CUR) != 0)
+    {
+      fputs ("Failed to flush-fseeko sample file.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* Check that offset is correct.  */
+  if (lseek (fd, 0, SEEK_CUR) != 6)
+    {
+      fprintf (stderr, "File offset is wrong after fseeko: %ld.\n",
+               (long) lseek (fd, 0, SEEK_CUR));
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  if (ftell (f) != 6)
+    {
+      fprintf (stderr, "ftell result is wrong after fseeko: %ld.\n",
+               (long) ftell (f));
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  /* Check that file reading resumes at correct location.  */
+  if (fgetc (f) != '7')
+    {
+      fputs ("Failed to read next byte after fseeko.\n", stderr);
+      fclose (f);
+      unlink ("test-fflush.txt");
+      return 1;
+    }
+  fclose (f);
+  unlink ("test-fflush.txt");
+  return 0;
+}
diff --git a/tests/gnu/test-fflush2.c b/tests/gnu/test-fflush2.c
new file mode 100755
index 00000000..c89dc912
--- /dev/null
+++ b/tests/gnu/test-fflush2.c
@@ -0,0 +1,108 @@
+/* Test of POSIX compatible fflush() function.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "binary-io.h"
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  int c;
+
+  /* Avoid the well-known bugs of fflush() on streams in O_TEXT mode
+     on native Windows platforms.  */
+  SET_BINARY (0);
+
+  if (argc > 1)
+    switch (argv[1][0])
+      {
+      case '1':
+        /* Check fflush after a backup ungetc() call.  This is case 1a in
+           terms of
+           <http://lists.gnu.org/archive/html/bug-gnulib/2008-03/msg00131.html>,
+           according to the Austin Group's resolution on 2009-01-08.  */
+
+        c = fgetc (stdin);
+        ASSERT (c == '#');
+
+        c = fgetc (stdin);
+        ASSERT (c == '!');
+
+        /* Here the file-position indicator must be 2.  */
+
+        c = ungetc ('!', stdin);
+        ASSERT (c == '!');
+
+        fflush (stdin);
+
+        /* Here the file-position indicator must be 1.  */
+
+        c = fgetc (stdin);
+        ASSERT (c == '!');
+
+        c = fgetc (stdin);
+        ASSERT (c == '/');
+
+        return 0;
+
+      case '2':
+        /* Check fflush after a non-backup ungetc() call.  This is case 2a in
+           terms of
+           <http://lists.gnu.org/archive/html/bug-gnulib/2008-03/msg00131.html>,
+           according to the Austin Group's resolution on 2009-01-08.  */
+        /* Check that fflush after a non-backup ungetc() call discards the
+           ungetc buffer.  This is mandated by POSIX
+           <http://www.opengroup.org/susv3/functions/ungetc.html>:
+             "The value of the file-position indicator for the stream after
+              reading or discarding all pushed-back bytes shall be the same
+              as it was before the bytes were pushed back."
+           <http://www.opengroup.org/austin/aardvark/latest/xshbug3.txt>
+             "[After fflush(),] the file offset of the underlying open file
+              description shall be set to the file position of the stream, and
+              any characters pushed back onto the stream by ungetc() or
+              ungetwc() that have not subsequently been read from the stream
+              shall be discarded."  */
+
+        c = fgetc (stdin);
+        ASSERT (c == '#');
+
+        c = fgetc (stdin);
+        ASSERT (c == '!');
+
+        /* Here the file-position indicator must be 2.  */
+
+        c = ungetc ('@', stdin);
+        ASSERT (c == '@');
+
+        fflush (stdin);
+
+        /* Here the file-position indicator must be 1.  */
+
+        c = fgetc (stdin);
+        ASSERT (c == '!');
+
+        c = fgetc (stdin);
+        ASSERT (c == '/');
+
+        return 0;
+      }
+
+  return 1;
+}
diff --git a/tests/gnu/test-fflush2.sh b/tests/gnu/test-fflush2.sh
new file mode 100755
index 00000000..ef77fa48
--- /dev/null
+++ b/tests/gnu/test-fflush2.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+# Execute the test only with seekable input stream.
+# The behaviour of fflush() on a non-seekable input stream is undefined.
+./test-fflush2${EXEEXT} 1 < "$srcdir/test-fflush2.sh" || exit $?
+./test-fflush2${EXEEXT} 2 < "$srcdir/test-fflush2.sh" || exit $?
+#cat "$srcdir/test-fflush2.sh" | ./test-fflush2${EXEEXT} || exit $?
+
+exit 0
diff --git a/tests/gnu/test-filenamecat.c b/tests/gnu/test-filenamecat.c
new file mode 100755
index 00000000..b01645a4
--- /dev/null
+++ b/tests/gnu/test-filenamecat.c
@@ -0,0 +1,66 @@
+/* Test of concatenation of two arbitrary file names.
+
+   Copyright (C) 1996-2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Jim Meyering.  */
+
+#include <config.h>
+
+#include "filenamecat.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "progname.h"
+
+int
+main (int argc _GL_UNUSED, char *argv[])
+{
+  static char const *const tests[][3] =
+    {
+      {"a", "b",   "a/b"},
+      {"a/", "b",  "a/b"},
+      {"a/", "/b", "a/b"},
+      {"a", "/b",  "a/b"},
+
+      {"/", "b",  "/b"},
+      {"/", "/b", "/b"},
+      {"/", "/",  "/"},
+      {"a", "/",  "a/"},   /* this might deserve a diagnostic */
+      {"/a", "/", "/a/"},  /* this might deserve a diagnostic */
+      {"a", "//b",  "a/b"},
+      {"", "a", "a"},  /* this might deserve a diagnostic */
+    };
+  unsigned int i;
+  bool fail = false;
+
+  set_program_name (argv[0]);
+
+  for (i = 0; i < sizeof tests / sizeof tests[0]; i++)
+    {
+      char *base_in_result;
+      char const *const *t = tests[i];
+      char *res = file_name_concat (t[0], t[1], &base_in_result);
+      if (strcmp (res, t[2]) != 0)
+        {
+          fprintf (stderr, "test #%u: got %s, expected %s\n", i, res, t[2]);
+          fail = true;
+        }
+    }
+  exit (fail ? EXIT_FAILURE : EXIT_SUCCESS);
+}
diff --git a/tests/gnu/test-fopen-safer.c b/tests/gnu/test-fopen-safer.c
new file mode 100755
index 00000000..c12080dc
--- /dev/null
+++ b/tests/gnu/test-fopen-safer.c
@@ -0,0 +1,31 @@
+/* Test of opening a file stream.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "stdio--.h"
+
+#define BASE "test-fopen-safer.t"
+
+#include "test-fopen.h"
+
+int
+main (void)
+{
+  return test_fopen ();
+}
diff --git a/tests/gnu/test-fopen.c b/tests/gnu/test-fopen.c
new file mode 100755
index 00000000..d788d84e
--- /dev/null
+++ b/tests/gnu/test-fopen.c
@@ -0,0 +1,34 @@
+/* Test of opening a file stream.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fopen, FILE *, (char const *, char const *));
+
+#define BASE "test-fopen.t"
+
+#include "test-fopen.h"
+
+int
+main (void)
+{
+  return test_fopen ();
+}
diff --git a/tests/gnu/test-fopen.h b/tests/gnu/test-fopen.h
new file mode 100755
index 00000000..765f2f8a
--- /dev/null
+++ b/tests/gnu/test-fopen.h
@@ -0,0 +1,73 @@
+/* Test of opening a file stream.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+/* Include <config.h> and a form of <stdio.h> first.  */
+
+#include <errno.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+/* Test fopen.  Assumes BASE is defined.  */
+
+static int
+test_fopen (void)
+{
+  FILE *f;
+  /* Remove anything from prior partial run.  */
+  unlink (BASE "file");
+
+  /* Read requires existing file.  */
+  errno = 0;
+  ASSERT (fopen (BASE "file", "r") == NULL);
+  ASSERT (errno == ENOENT);
+
+  /* Write can create a file.  */
+  f = fopen (BASE "file", "w");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+
+  /* Trailing slash is invalid on non-directory.  */
+  errno = 0;
+  ASSERT (fopen (BASE "file/", "r") == NULL);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL);
+
+  /* Cannot create a directory.  */
+  errno = 0;
+  ASSERT (fopen ("nonexist.ent/", "w") == NULL);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == ENOENT
+          || errno == EINVAL);
+
+  /* Directories cannot be opened for writing.  */
+  errno = 0;
+  ASSERT (fopen (".", "w") == NULL);
+  ASSERT (errno == EISDIR || errno == EINVAL || errno == EACCES);
+
+  /* /dev/null must exist, and be writable.  */
+  f = fopen ("/dev/null", "r");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+  f = fopen ("/dev/null", "w");
+  ASSERT (f);
+  ASSERT (fclose (f) == 0);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-fpending.c b/tests/gnu/test-fpending.c
new file mode 100755
index 00000000..d79a2083
--- /dev/null
+++ b/tests/gnu/test-fpending.c
@@ -0,0 +1,41 @@
+/* Ensure that __fpending works.
+
+   Copyright (C) 2004, 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+   Written by Jim Meyering.  */
+
+#include <config.h>
+
+#include "fpending.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  ASSERT (__fpending (stdout) == 0);
+
+  fputs ("foo", stdout);
+  ASSERT (__fpending (stdout) == 3);
+
+  fflush (stdout);
+  ASSERT (__fpending (stdout) == 0);
+
+  exit (0);
+}
diff --git a/tests/gnu/test-fpending.sh b/tests/gnu/test-fpending.sh
new file mode 100755
index 00000000..636af25a
--- /dev/null
+++ b/tests/gnu/test-fpending.sh
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+tmpfile=
+trap 'rm -fr $tmpfile' 1 2 3 15
+
+tmpfile=test-fpending.t
+
+./test-fpending${EXEEXT} > $tmpfile || exit 1
+
+rm -fr $tmpfile
+
+exit 0
diff --git a/tests/gnu/test-fprintf-posix.h b/tests/gnu/test-fprintf-posix.h
new file mode 100755
index 00000000..dcd65021
--- /dev/null
+++ b/tests/gnu/test-fprintf-posix.h
@@ -0,0 +1,151 @@
+/* Test of POSIX compatible vsprintf() and sprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+static void
+test_function (int (*my_fprintf) (FILE *, const char *, ...))
+{
+  /* Here we don't test output that may be platform dependent.
+     The bulk of the tests is done as part of the 'vasnprintf-posix' module.  */
+
+  /* Test support of size specifiers as in C99.  */
+
+  my_fprintf (stdout, "%ju %d\n", (uintmax_t) 12345671, 33, 44, 55);
+
+  my_fprintf (stdout, "%zu %d\n", (size_t) 12345672, 33, 44, 55);
+
+  my_fprintf (stdout, "%tu %d\n", (ptrdiff_t) 12345673, 33, 44, 55);
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  /* Positive zero.  */
+  my_fprintf (stdout, "%a %d\n", 0.0, 33, 44, 55);
+
+  /* Positive infinity.  */
+  my_fprintf (stdout, "%a %d\n", 1.0 / 0.0, 33, 44, 55);
+
+  /* Negative infinity.  */
+  my_fprintf (stdout, "%a %d\n", -1.0 / 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO with infinite number.  */
+  my_fprintf (stdout, "%010a %d\n", 1.0 / 0.0, 33, 44, 55);
+
+  /* Test the support of the %f format directive.  */
+
+  /* A positive number.  */
+  my_fprintf (stdout, "%f %d\n", 12.75, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_fprintf (stdout, "%f %d\n", 1234567.0, 33, 44, 55);
+
+  /* A negative number.  */
+  my_fprintf (stdout, "%f %d\n", -0.03125, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_fprintf (stdout, "%f %d\n", 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_fprintf (stdout, "%015f %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision.  */
+  my_fprintf (stdout, "%.f %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_fprintf (stdout, "%.2f %d\n", 999.95, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_fprintf (stdout, "%.2f %d\n", 999.996, 33, 44, 55);
+
+  /* A positive number.  */
+  my_fprintf (stdout, "%Lf %d\n", 12.75L, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_fprintf (stdout, "%Lf %d\n", 1234567.0L, 33, 44, 55);
+
+  /* A negative number.  */
+  my_fprintf (stdout, "%Lf %d\n", -0.03125L, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_fprintf (stdout, "%Lf %d\n", 0.0L, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_fprintf (stdout, "%015Lf %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision.  */
+  my_fprintf (stdout, "%.Lf %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_fprintf (stdout, "%.2Lf %d\n", 999.95L, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_fprintf (stdout, "%.2Lf %d\n", 999.996L, 33, 44, 55);
+
+  /* Test the support of the %F format directive.  */
+
+  /* A positive number.  */
+  my_fprintf (stdout, "%F %d\n", 12.75, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_fprintf (stdout, "%F %d\n", 1234567.0, 33, 44, 55);
+
+  /* A negative number.  */
+  my_fprintf (stdout, "%F %d\n", -0.03125, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_fprintf (stdout, "%F %d\n", 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_fprintf (stdout, "%015F %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision.  */
+  my_fprintf (stdout, "%.F %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_fprintf (stdout, "%.2F %d\n", 999.95, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_fprintf (stdout, "%.2F %d\n", 999.996, 33, 44, 55);
+
+  /* A positive number.  */
+  my_fprintf (stdout, "%LF %d\n", 12.75L, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_fprintf (stdout, "%LF %d\n", 1234567.0L, 33, 44, 55);
+
+  /* A negative number.  */
+  my_fprintf (stdout, "%LF %d\n", -0.03125L, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_fprintf (stdout, "%LF %d\n", 0.0L, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_fprintf (stdout, "%015LF %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision.  */
+  my_fprintf (stdout, "%.LF %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_fprintf (stdout, "%.2LF %d\n", 999.95L, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_fprintf (stdout, "%.2LF %d\n", 999.996L, 33, 44, 55);
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  my_fprintf (stdout, "%2$d %1$d\n", 33, 55);
+}
diff --git a/tests/gnu/test-fpurge.c b/tests/gnu/test-fpurge.c
new file mode 100755
index 00000000..89fe8c0c
--- /dev/null
+++ b/tests/gnu/test-fpurge.c
@@ -0,0 +1,132 @@
+/* Test of fpurge() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+/* None of the files accessed by this test are large, so disable the
+   fseek link warning if we are not using the gnulib fseek module.  */
+#define _GL_NO_LARGE_FILES
+#include <stdio.h>
+
+#include <string.h>
+
+#include "macros.h"
+
+#define TESTFILE "t-fpurge.tmp"
+
+int
+main (void)
+{
+  int check_filepos;
+
+  for (check_filepos = 0; check_filepos <= 1; check_filepos++)
+    {
+      FILE *fp;
+
+      /* Create a file with some contents.  */
+      fp = fopen (TESTFILE, "w");
+      if (fp == NULL)
+        goto skip;
+      if (fwrite ("foobarsh", 1, 8, fp) < 8)
+        goto skip;
+      if (fclose (fp))
+        goto skip;
+
+      /* The file's contents is now "foobarsh".  */
+
+      /* Open it in read-write mode.  */
+      fp = fopen (TESTFILE, "r+");
+      if (fp == NULL)
+        goto skip;
+      if (fseek (fp, 3, SEEK_CUR))
+        goto skip;
+      if (fwrite ("g", 1, 1, fp) < 1)
+        goto skip;
+      if (fflush (fp))
+        goto skip;
+      if (fwrite ("bz", 1, 2, fp) < 2)
+        goto skip;
+      /* Discard pending write.  */
+      ASSERT (fpurge (fp) == 0);
+      /* Verify that when discarding pending output, the file position is set
+         back to where it was before the write calls.  */
+      if (check_filepos)
+        ASSERT (ftell (fp) == 4);
+      ASSERT (fclose (fp) == 0);
+
+      /* Open it in read-only mode.  */
+      fp = fopen (TESTFILE, "r");
+      if (fp == NULL)
+        goto skip;
+      /* Verify that the pending writes before the fpurge were really
+         discarded.  */
+      {
+        char buf[8];
+        if (fread (buf, 1, 7, fp) < 7)
+          goto skip;
+        ASSERT (memcmp (buf, "foogars", 7) == 0);
+      }
+      /* Discard the buffered 'h'.  */
+      if (check_filepos)
+        ASSERT (ftell (fp) == 7);
+      ASSERT (fpurge (fp) == 0);
+      /* Verify that when discarding pending input, the file position is
+         advanced to match the end of the previously read input.  */
+      if (check_filepos)
+        ASSERT (ftell (fp) == 8);
+      ASSERT (getc (fp) == EOF);
+      ASSERT (fclose (fp) == 0);
+
+      /* The file's contents is now "foogarsh".  */
+
+      /* Ensure that purging a read does not corrupt subsequent writes.  */
+      fp = fopen (TESTFILE, "r+");
+      if (fp == NULL)
+        goto skip;
+      if (fseek (fp, -1, SEEK_END))
+        goto skip;
+      ASSERT (getc (fp) == 'h');
+      ASSERT (getc (fp) == EOF);
+      if (check_filepos)
+        ASSERT (ftell (fp) == 8);
+      ASSERT (fpurge (fp) == 0);
+      if (check_filepos)
+        ASSERT (ftell (fp) == 8);
+      ASSERT (putc ('!', fp) == '!');
+      ASSERT (fclose (fp) == 0);
+      fp = fopen (TESTFILE, "r");
+      if (fp == NULL)
+        goto skip;
+      {
+        char buf[10];
+        ASSERT (fread (buf, 1, 10, fp) == 9);
+        ASSERT (memcmp (buf, "foogarsh!", 9) == 0);
+      }
+      ASSERT (fclose (fp) == 0);
+
+      /* The file's contents is now "foogarsh!".  */
+    }
+
+  remove (TESTFILE);
+  return 0;
+
+ skip:
+  fprintf (stderr, "Skipping test: prerequisite file operations failed.\n");
+  remove (TESTFILE);
+  return 77;
+}
diff --git a/tests/gnu/test-freadahead.c b/tests/gnu/test-freadahead.c
new file mode 100755
index 00000000..3f34a421
--- /dev/null
+++ b/tests/gnu/test-freadahead.c
@@ -0,0 +1,73 @@
+/* Test of freadahead() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "freadahead.h"
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  int nbytes = atoi (argv[1]);
+  if (nbytes > 0)
+    {
+      void *buf = malloc (nbytes);
+      ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
+    }
+
+  if (nbytes == 0)
+    ASSERT (freadahead (stdin) == 0);
+  else
+    {
+      if (lseek (0, 0, SEEK_CUR) == nbytes)
+        /* An unbuffered stdio, such as BeOS or on uClibc compiled without
+           __STDIO_BUFFERS.  */
+        ASSERT (freadahead (stdin) == 0);
+      else
+        {
+          /* Normal buffered stdio.  */
+          size_t buffered;
+          int c, c2;
+
+          ASSERT (freadahead (stdin) != 0);
+          buffered = freadahead (stdin);
+
+          c = fgetc (stdin);
+          ASSERT (freadahead (stdin) == buffered - 1);
+          ungetc (c, stdin);
+          ASSERT (freadahead (stdin) == buffered);
+          c2 = fgetc (stdin);
+          ASSERT (c2 == c);
+          ASSERT (freadahead (stdin) == buffered - 1);
+
+          c = '@';
+          ungetc (c, stdin);
+          ASSERT (freadahead (stdin) == buffered);
+          c2 = fgetc (stdin);
+          ASSERT (c2 == c);
+          ASSERT (freadahead (stdin) == buffered - 1);
+        }
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-freadahead.sh b/tests/gnu/test-freadahead.sh
new file mode 100755
index 00000000..27cf5504
--- /dev/null
+++ b/tests/gnu/test-freadahead.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-freadahead${EXEEXT} 0 < "$srcdir/test-freadahead.sh" || exit 1
+./test-freadahead${EXEEXT} 5 < "$srcdir/test-freadahead.sh" || exit 1
+exit 0
diff --git a/tests/gnu/test-freading.c b/tests/gnu/test-freading.c
new file mode 100755
index 00000000..fee82284
--- /dev/null
+++ b/tests/gnu/test-freading.c
@@ -0,0 +1,130 @@
+/* Test of freading() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+/* None of the files accessed by this test are large, so disable the
+   fseek link warning if we are not using the gnulib fseek module.  */
+#define _GL_NO_LARGE_FILES
+#include "freading.h"
+
+#include <stdio.h>
+
+#include "macros.h"
+
+#define TESTFILE "t-freading.tmp"
+
+int
+main (void)
+{
+  FILE *fp;
+
+  /* Create a file with some contents.  Write-only file is never reading.  */
+  fp = fopen (TESTFILE, "w");
+  ASSERT (fp);
+  ASSERT (!freading (fp));
+  ASSERT (fwrite ("foobarsh", 1, 8, fp) == 8);
+  ASSERT (!freading (fp));
+  ASSERT (fclose (fp) == 0);
+
+  /* Open it in read-only mode.  Read-only file is always reading.  */
+  fp = fopen (TESTFILE, "r");
+  ASSERT (fp);
+  ASSERT (freading (fp));
+  ASSERT (fgetc (fp) == 'f');
+  ASSERT (freading (fp));
+  ASSERT (fseek (fp, 2, SEEK_CUR) == 0);
+  ASSERT (freading (fp));
+  ASSERT (fgetc (fp) == 'b');
+  ASSERT (freading (fp));
+  fflush (fp);
+  ASSERT (freading (fp));
+  ASSERT (fgetc (fp) == 'a');
+  ASSERT (freading (fp));
+  ASSERT (fseek (fp, 0, SEEK_END) == 0);
+  ASSERT (freading (fp));
+  ASSERT (fclose (fp) == 0);
+
+  /* Open it in read-write mode.  POSIX requires a reposition (fseek,
+     fsetpos, rewind) or EOF when transitioning from read to write;
+     freading is only deterministic after input or output, but this
+     test case should be portable even on open, after reposition, and
+     at EOF.  */
+  /* First a scenario with only fgetc, fseek, fputc.  */
+  fp = fopen (TESTFILE, "r+");
+  ASSERT (fp);
+  ASSERT (!freading (fp));
+  ASSERT (fgetc (fp) == 'f');
+  ASSERT (freading (fp));
+  ASSERT (fseek (fp, 2, SEEK_CUR) ==  0);
+  /* freading (fp) is undefined here, but fwriting (fp) is false.  */
+  ASSERT (fgetc (fp) == 'b');
+  ASSERT (freading (fp));
+  /* This fseek call is necessary when switching from reading to writing.
+     See the description of fopen(), ISO C 99 7.19.5.3.(6).  */
+  ASSERT (fseek (fp, 0, SEEK_CUR) == 0);
+  /* freading (fp) is undefined here, but fwriting (fp) is false.  */
+  ASSERT (fputc ('x', fp) == 'x');
+  ASSERT (!freading (fp));
+  ASSERT (fseek (fp, 0, SEEK_END) == 0);
+  /* freading (fp) is undefined here, because on some implementations (e.g.
+     glibc) fseek causes a buffer to be read.
+     fwriting (fp) is undefined as well.  */
+  ASSERT (fclose (fp) == 0);
+
+  /* Open it in read-write mode.  POSIX requires a reposition (fseek,
+     fsetpos, rewind) or EOF when transitioning from read to write;
+     freading is only deterministic after input or output, but this
+     test case should be portable even on open, after reposition, and
+     at EOF.  */
+  /* Here a scenario that includes fflush.  */
+  fp = fopen (TESTFILE, "r+");
+  ASSERT (fp);
+  ASSERT (!freading (fp));
+  ASSERT (fgetc (fp) == 'f');
+  ASSERT (freading (fp));
+  ASSERT (fseek (fp, 2, SEEK_CUR) == 0);
+  /* freading (fp) is undefined here, but fwriting (fp) is false.  */
+  ASSERT (fgetc (fp) == 'b');
+  ASSERT (freading (fp));
+  fflush (fp);
+  /* freading (fp) is undefined here, but fwriting (fp) is false.  */
+  ASSERT (fgetc (fp) == 'x');
+  ASSERT (freading (fp));
+  /* This fseek call is necessary when switching from reading to writing.
+     See the description of fopen(), ISO C 99 7.19.5.3.(6).  */
+  ASSERT (fseek (fp, 0, SEEK_CUR) == 0);
+  /* freading (fp) is undefined here, but fwriting (fp) is false.  */
+  ASSERT (fputc ('z', fp) == 'z');
+  ASSERT (!freading (fp));
+  ASSERT (fseek (fp, 0, SEEK_END) == 0);
+  /* freading (fp) is undefined here, because on some implementations (e.g.
+     glibc) fseek causes a buffer to be read.
+     fwriting (fp) is undefined as well.  */
+  ASSERT (fclose (fp) == 0);
+
+  /* Open it in append mode.  Write-only file is never reading.  */
+  fp = fopen (TESTFILE, "a");
+  ASSERT (fp);
+  ASSERT (!freading (fp));
+  ASSERT (fwrite ("bla", 1, 3, fp) == 3);
+  ASSERT (!freading (fp));
+  ASSERT (fclose (fp) == 0);
+  ASSERT (remove (TESTFILE) == 0);
+  return 0;
+}
diff --git a/tests/gnu/test-freadptr.c b/tests/gnu/test-freadptr.c
new file mode 100755
index 00000000..f73b0fcd
--- /dev/null
+++ b/tests/gnu/test-freadptr.c
@@ -0,0 +1,94 @@
+/* Test of freadptr() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include "freadptr.h"
+
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  int nbytes = atoi (argv[1]);
+  void *buf = malloc (nbytes);
+  ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
+
+  if (lseek (0, 0, SEEK_CUR) == nbytes)
+    {
+      /* An unbuffered stdio, such as BeOS or on uClibc compiled without
+         __STDIO_BUFFERS.  Or stdin is a pipe.  */
+      size_t size;
+      ASSERT (freadptr (stdin, &size) == NULL);
+    }
+  else
+    {
+      /* Normal buffered stdio.  */
+      const char stdin_contents[] =
+        "#!/bin/sh\n\n./test-freadptr${EXEEXT} 5 < \"$srcdir/test-freadptr.sh\" || exit 1\ncat \"$srcdir/test-freadptr.sh\" | ./test-freadptr${EXEEXT} 5 || exit 1\nexit 0\n";
+      const char *expected = stdin_contents + nbytes;
+      size_t available1;
+      size_t available2;
+      size_t available3;
+
+      /* Test normal behaviour.  */
+      {
+        const char *ptr = freadptr (stdin, &available1);
+
+        ASSERT (ptr != NULL);
+        ASSERT (available1 != 0);
+        ASSERT (available1 <= strlen (expected));
+        ASSERT (memcmp (ptr, expected, available1) == 0);
+      }
+
+      /* Test behaviour after normal ungetc.  */
+      ungetc (fgetc (stdin), stdin);
+      {
+        const char *ptr = freadptr (stdin, &available2);
+
+        if (ptr != NULL)
+          {
+            ASSERT (available2 == available1);
+            ASSERT (memcmp (ptr, expected, available2) == 0);
+          }
+      }
+
+      /* Test behaviour after arbitrary ungetc.  */
+      fgetc (stdin);
+      ungetc ('@', stdin);
+      {
+        const char *ptr = freadptr (stdin, &available3);
+
+        if (ptr != NULL)
+          {
+            ASSERT (available3 == 1 || available3 == available1);
+            ASSERT (ptr[0] == '@');
+            if (available3 > 1)
+              {
+                ASSERT (memcmp (ptr + 1, expected + 1, available3 - 1) == 0);
+              }
+          }
+      }
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-freadptr.sh b/tests/gnu/test-freadptr.sh
new file mode 100755
index 00000000..97819b29
--- /dev/null
+++ b/tests/gnu/test-freadptr.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-freadptr${EXEEXT} 5 < "$srcdir/test-freadptr.sh" || exit 1
+cat "$srcdir/test-freadptr.sh" | ./test-freadptr${EXEEXT} 5 || exit 1
+exit 0
diff --git a/tests/gnu/test-freadptr2.c b/tests/gnu/test-freadptr2.c
new file mode 100755
index 00000000..cec011c5
--- /dev/null
+++ b/tests/gnu/test-freadptr2.c
@@ -0,0 +1,62 @@
+/* Test of freadptr() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "freadptr.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+static int
+freadptrbufsize (FILE *fp)
+{
+  size_t size = 0;
+
+  freadptr (fp, &size);
+  return size;
+}
+
+int
+main (int argc, char **argv)
+{
+  int nbytes = atoi (argv[1]);
+  if (nbytes > 0)
+    {
+      void *buf = malloc (nbytes);
+      ASSERT (fread (buf, 1, nbytes, stdin) == nbytes);
+    }
+
+  if (nbytes == 0)
+    ASSERT (freadptrbufsize (stdin) == 0);
+  else
+    {
+      if (lseek (0, 0, SEEK_CUR) == nbytes)
+        /* An unbuffered stdio, such as BeOS or on uClibc compiled without
+           __STDIO_BUFFERS.  */
+        ASSERT (freadptrbufsize (stdin) == 0);
+      else
+        /* Normal buffered stdio.  */
+        ASSERT (freadptrbufsize (stdin) != 0);
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-freadptr2.sh b/tests/gnu/test-freadptr2.sh
new file mode 100755
index 00000000..7634d85f
--- /dev/null
+++ b/tests/gnu/test-freadptr2.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-freadptr2${EXEEXT} 0 < "$srcdir/test-freadptr2.sh" || exit 1
+./test-freadptr2${EXEEXT} 5 < "$srcdir/test-freadptr2.sh" || exit 1
+exit 0
diff --git a/tests/gnu/test-freadseek.c b/tests/gnu/test-freadseek.c
new file mode 100755
index 00000000..1da24c18
--- /dev/null
+++ b/tests/gnu/test-freadseek.c
@@ -0,0 +1,93 @@
+/* Test of freadseek() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include "freadseek.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  static const char stdin_contents[] =
+    "#!/bin/sh\n\n./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 < \"$srcdir/test-freadseek.sh\" || exit 1\ncat \"$srcdir/test-freadseek.sh\" | ./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 || exit 1\nexit 0\n";
+  int nbytes1 = atoi (argv[1]);
+  int nbytes2 = atoi (argv[2]);
+  int nbytes3 = atoi (argv[3]);
+  int nbytes4 = atoi (argv[4]);
+  int nbytes5 = atoi (argv[5]);
+  int nbytes6 = atoi (argv[6]);
+  int nbytes7 = atoi (argv[7]);
+  void *buf1 = malloc (nbytes1);
+  void *buf3 = malloc (nbytes3);
+  void *buf5 = malloc (nbytes5);
+  void *buf7 = malloc (nbytes7);
+  /* A private variable to keep track of the position.  */
+  size_t position = 0;
+
+  ASSERT (fread (buf1, 1, nbytes1, stdin) == nbytes1);
+  ASSERT (memcmp (buf1, stdin_contents + position, nbytes1) == 0);
+  position += nbytes1;
+
+  /* Test normal behaviour.  */
+  ASSERT (freadseek (stdin, nbytes2) == 0);
+  position += nbytes2;
+
+  ASSERT (fread (buf3, 1, nbytes3, stdin) == nbytes3);
+  ASSERT (memcmp (buf3, stdin_contents + position, nbytes3) == 0);
+  position += nbytes3;
+
+  /* Test behaviour after normal ungetc.  */
+  ungetc (fgetc (stdin), stdin);
+  ASSERT (freadseek (stdin, nbytes4) == 0);
+  position += nbytes4;
+
+  ASSERT (fread (buf5, 1, nbytes5, stdin) == nbytes5);
+  ASSERT (memcmp (buf5, stdin_contents + position, nbytes5) == 0);
+  position += nbytes5;
+
+  /* Test behaviour after arbitrary ungetc.  */
+  fgetc (stdin);
+  ungetc ('@', stdin);
+  ASSERT (freadseek (stdin, nbytes6) == 0);
+  position += nbytes6;
+
+  ASSERT (fread (buf7, 1, nbytes7, stdin) == nbytes7);
+  ASSERT (memcmp (buf7, stdin_contents + position, nbytes7) == 0);
+  position += nbytes7;
+
+  /* Test move to end of file.  */
+  ASSERT (freadseek (stdin, strlen (stdin_contents) - position) == 0);
+  ASSERT (fgetc (stdin) == EOF);
+  ASSERT (!ferror (stdin));
+
+#if !defined __MINT__ /* FreeMiNT has problems seeking past end of file */
+  /* Test move beyond end of file.  */
+  ASSERT (freadseek (stdin, 1000000) == 0);
+  ASSERT (fgetc (stdin) == EOF);
+  ASSERT (!ferror (stdin));
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-freadseek.sh b/tests/gnu/test-freadseek.sh
new file mode 100755
index 00000000..453cadfd
--- /dev/null
+++ b/tests/gnu/test-freadseek.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 < "$srcdir/test-freadseek.sh" || exit 1
+cat "$srcdir/test-freadseek.sh" | ./test-freadseek${EXEEXT} 5 19 6 7 18 9 19 || exit 1
+exit 0
diff --git a/tests/gnu/test-frexp.c b/tests/gnu/test-frexp.c
new file mode 100755
index 00000000..d5ab7e50
--- /dev/null
+++ b/tests/gnu/test-frexp.c
@@ -0,0 +1,199 @@
+/* Test of splitting a double into fraction and mantissa.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (frexp, double, (double, int *));
+
+#include <float.h>
+
+#include "isnand-nolibm.h"
+#include "nan.h"
+#include "macros.h"
+
+/* Avoid some warnings from "gcc -Wshadow".
+   This file doesn't use the exp() function.  */
+#undef exp
+#define exp exponent
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zero instead.  */
+double zero = 0.0;
+
+static double
+my_ldexp (double x, int d)
+{
+  for (; d > 0; d--)
+    x *= 2.0;
+  for (; d < 0; d++)
+    x *= 0.5;
+  return x;
+}
+
+int
+main ()
+{
+  int i;
+  /* The use of 'volatile' guarantees that excess precision bits are dropped
+     when dealing with denormalized numbers.  It is necessary on x86 systems
+     where double-floats are not IEEE compliant by default, to avoid that the
+     results become platform and compiler option dependent.  'volatile' is a
+     portable alternative to gcc's -ffloat-store option.  */
+  volatile double x;
+
+  { /* NaN.  */
+    int exp = -9999;
+    double mantissa;
+    x = NaNd ();
+    mantissa = frexp (x, &exp);
+    ASSERT (isnand (mantissa));
+  }
+
+  { /* Positive infinity.  */
+    int exp = -9999;
+    double mantissa;
+    x = 1.0 / 0.0;
+    mantissa = frexp (x, &exp);
+    ASSERT (mantissa == x);
+  }
+
+  { /* Negative infinity.  */
+    int exp = -9999;
+    double mantissa;
+    x = -1.0 / 0.0;
+    mantissa = frexp (x, &exp);
+    ASSERT (mantissa == x);
+  }
+
+  { /* Positive zero.  */
+    int exp = -9999;
+    double mantissa;
+    x = 0.0;
+    mantissa = frexp (x, &exp);
+    ASSERT (exp == 0);
+    ASSERT (mantissa == x);
+    ASSERT (!signbit (mantissa));
+  }
+
+  { /* Negative zero.  */
+    int exp = -9999;
+    double mantissa;
+    x = -zero;
+    mantissa = frexp (x, &exp);
+    ASSERT (exp == 0);
+    ASSERT (mantissa == x);
+    ASSERT (signbit (mantissa));
+  }
+
+  for (i = 1, x = 1.0; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5);
+    }
+  for (i = 1, x = 1.0; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5);
+    }
+
+  for (i = 1, x = -1.0; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5);
+    }
+  for (i = 1, x = -1.0; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x < 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5);
+    }
+
+  for (i = 1, x = 1.01; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.505);
+    }
+  for (i = 1, x = 1.01; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.505);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa >= 0.5);
+      ASSERT (mantissa < 1.0);
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  for (i = 1, x = 1.73205; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.866025);
+    }
+  for (i = 1, x = 1.73205; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.866025);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = frexp (x, &exp);
+      ASSERT (exp == i || exp == i + 1);
+      ASSERT (mantissa >= 0.5);
+      ASSERT (mantissa < 1.0);
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-frexpl.c b/tests/gnu/test-frexpl.c
new file mode 100755
index 00000000..8d9d41d2
--- /dev/null
+++ b/tests/gnu/test-frexpl.c
@@ -0,0 +1,223 @@
+/* Test of splitting a 'long double' into fraction and mantissa.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (frexpl, long double, (long double, int *));
+
+#include <float.h>
+
+#include "fpucw.h"
+#include "isnanl-nolibm.h"
+#include "nan.h"
+#include "macros.h"
+
+/* Avoid some warnings from "gcc -Wshadow".
+   This file doesn't use the exp() function.  */
+#undef exp
+#define exp exponent
+
+/* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
+   exponent for 'long double' is -964.  Similarly, on PowerPC machines,
+   LDBL_MIN_EXP is -1021, but the smallest reliable exponent for 'long double'
+   is -968.  For exponents below that, the precision may be truncated to the
+   precision used for 'double'.  */
+#ifdef __sgi
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 57)
+#elif defined __ppc || defined __ppc__ || defined __powerpc || defined __powerpc__
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 53)
+#else
+# define MIN_NORMAL_EXP LDBL_MIN_EXP
+#endif
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zero instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zero (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zero compute_minus_zero ()
+#else
+long double minus_zero = -0.0L;
+#endif
+
+static long double
+my_ldexp (long double x, int d)
+{
+  for (; d > 0; d--)
+    x *= 2.0L;
+  for (; d < 0; d++)
+    x *= 0.5L;
+  return x;
+}
+
+int
+main ()
+{
+  int i;
+  long double x;
+  DECL_LONG_DOUBLE_ROUNDING
+
+  BEGIN_LONG_DOUBLE_ROUNDING ();
+
+  { /* NaN.  */
+    int exp = -9999;
+    long double mantissa;
+    x = NaNl ();
+    mantissa = frexpl (x, &exp);
+    ASSERT (isnanl (mantissa));
+  }
+
+  { /* Positive infinity.  */
+    int exp = -9999;
+    long double mantissa;
+    x = 1.0L / 0.0L;
+    mantissa = frexpl (x, &exp);
+    ASSERT (mantissa == x);
+  }
+
+  { /* Negative infinity.  */
+    int exp = -9999;
+    long double mantissa;
+    x = -1.0L / 0.0L;
+    mantissa = frexpl (x, &exp);
+    ASSERT (mantissa == x);
+  }
+
+  { /* Positive zero.  */
+    int exp = -9999;
+    long double mantissa;
+    x = 0.0L;
+    mantissa = frexpl (x, &exp);
+    ASSERT (exp == 0);
+    ASSERT (mantissa == x);
+    ASSERT (!signbit (mantissa));
+  }
+
+  { /* Negative zero.  */
+    int exp = -9999;
+    long double mantissa;
+    x = minus_zero;
+    mantissa = frexpl (x, &exp);
+    ASSERT (exp == 0);
+    ASSERT (mantissa == x);
+    ASSERT (signbit (mantissa));
+  }
+
+  for (i = 1, x = 1.0L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5L);
+    }
+  for (i = 1, x = 1.0L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5L);
+    }
+  for (; i >= LDBL_MIN_EXP - 100 && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.5L);
+    }
+
+  for (i = 1, x = -1.0L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5L);
+    }
+  for (i = 1, x = -1.0L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5L);
+    }
+  for (; i >= LDBL_MIN_EXP - 100 && x < 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == -0.5L);
+    }
+
+  for (i = 1, x = 1.01L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.505L);
+    }
+  for (i = 1, x = 1.01L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.505L);
+    }
+  for (; i >= LDBL_MIN_EXP - 100 && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa >= 0.5L);
+      ASSERT (mantissa < 1.0L);
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  for (i = 1, x = 1.73205L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.866025L);
+    }
+  for (i = 1, x = 1.73205L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i);
+      ASSERT (mantissa == 0.866025L);
+    }
+  for (; i >= LDBL_MIN_EXP - 100 && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = frexpl (x, &exp);
+      ASSERT (exp == i || exp == i + 1);
+      ASSERT (mantissa >= 0.5L);
+      ASSERT (mantissa < 1.0L);
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-fseeko.c b/tests/gnu/test-fseeko.c
new file mode 100755
index 00000000..be2a78dc
--- /dev/null
+++ b/tests/gnu/test-fseeko.c
@@ -0,0 +1,74 @@
+/* Test of fseeko() function.
+   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+/* None of the files accessed by this test are large, so disable the
+   fseek link warning if we are not using the gnulib fseek module.  */
+#define _GL_NO_LARGE_FILES
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (fseeko, int, (FILE *, off_t, int));
+
+
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
+
+int
+main (int argc, char **argv _GL_UNUSED)
+{
+  /* Assume stdin is non-empty, seekable, and starts with '#!/bin/sh'
+     iff argc > 1.  */
+  int expected = argc > 1 ? 0 : -1;
+  /* Exit with success only if fseek/fseeko agree.  */
+  int r1 = fseeko (stdin, 0, SEEK_CUR);
+  int r2 = fseek (stdin, 0, SEEK_CUR);
+  ASSERT (r1 == r2 && r1 == expected);
+  if (argc > 1)
+    {
+      /* Test that fseek discards previously read ungetc data.  */
+      int ch = fgetc (stdin);
+      ASSERT (ch == '#');
+      ASSERT (ungetc (ch, stdin) == ch);
+      ASSERT (fseeko (stdin, 2, SEEK_SET) == 0);
+      ch = fgetc (stdin);
+      ASSERT (ch == '/');
+      if (2 < argc)
+        {
+          if (FUNC_UNGETC_BROKEN)
+            {
+              fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
+                     stderr);
+              return 77;
+            }
+          /* Test that fseek discards random ungetc data.  */
+          ASSERT (ungetc (ch ^ 0xff, stdin) == (ch ^ 0xff));
+        }
+      ASSERT (fseeko (stdin, 0, SEEK_END) == 0);
+      ASSERT (fgetc (stdin) == EOF);
+      /* Test that fseek resets end-of-file marker.  */
+      ASSERT (feof (stdin));
+      ASSERT (fseeko (stdin, 0, SEEK_END) == 0);
+      ASSERT (!feof (stdin));
+    }
+  return 0;
+}
diff --git a/tests/gnu/test-fseeko.sh b/tests/gnu/test-fseeko.sh
new file mode 100755
index 00000000..5c558272
--- /dev/null
+++ b/tests/gnu/test-fseeko.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-fseeko${EXEEXT} 1 < "$srcdir/test-fseeko.sh" || exit 1
+echo hi | ./test-fseeko${EXEEXT} || exit 1
+exit 0
diff --git a/tests/gnu/test-fseeko2.sh b/tests/gnu/test-fseeko2.sh
new file mode 100755
index 00000000..6e1130cf
--- /dev/null
+++ b/tests/gnu/test-fseeko2.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec ./test-fseeko${EXEEXT} 1 2 < "$srcdir/test-fseeko2.sh"
diff --git a/tests/gnu/test-fseterr.c b/tests/gnu/test-fseterr.c
new file mode 100755
index 00000000..c114f1a1
--- /dev/null
+++ b/tests/gnu/test-fseterr.c
@@ -0,0 +1,44 @@
+/* Test setting the error indicator of a stream.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "fseterr.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+main ()
+{
+  /* All streams are initially created with the error indicator cleared.  */
+  if (ferror (stdout))
+    abort ();
+
+  /* Verify that fseterr() works.  */
+  fseterr (stdout);
+  if (!ferror (stdout))
+    abort ();
+
+  /* Verify fseterr's effect can be undone by clearerr().  */
+  clearerr (stdout);
+  if (ferror (stdout))
+    abort ();
+
+  return 0;
+}
diff --git a/tests/gnu/test-ftello.c b/tests/gnu/test-ftello.c
new file mode 100755
index 00000000..5fae570f
--- /dev/null
+++ b/tests/gnu/test-ftello.c
@@ -0,0 +1,118 @@
+/* Test of ftello() function.
+   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+/* None of the files accessed by this test are large, so disable the
+   fseek link warning if we are not using the gnulib fseek module.  */
+#define _GL_NO_LARGE_FILES
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (ftello, off_t, (FILE *));
+
+#include "binary-io.h"
+#include "macros.h"
+
+#ifndef FUNC_UNGETC_BROKEN
+# define FUNC_UNGETC_BROKEN 0
+#endif
+
+int
+main (int argc, char **argv _GL_UNUSED)
+{
+  int ch;
+  /* Assume stdin is seekable iff argc > 1.  */
+  if (argc == 1)
+    {
+      ASSERT (ftell (stdin) == -1);
+      ASSERT (ftello (stdin) == -1);
+      return 0;
+    }
+
+  /* mingw ftell is unreliable on text mode input.  */
+  SET_BINARY (0);
+
+  /* Simple tests.  For each test, make sure ftell and ftello agree.  */
+  ASSERT (ftell (stdin) == 0);
+  ASSERT (ftello (stdin) == 0);
+
+  ch = fgetc (stdin);
+  ASSERT (ch == '#');
+  ASSERT (ftell (stdin) == 1);
+  ASSERT (ftello (stdin) == 1);
+
+  /* Test ftell after ungetc of read input.  */
+  ch = ungetc ('#', stdin);
+  ASSERT (ch == '#');
+  ASSERT (ftell (stdin) == 0);
+  ASSERT (ftello (stdin) == 0);
+
+  ch = fgetc (stdin);
+  ASSERT (ch == '#');
+  ASSERT (ftell (stdin) == 1);
+  ASSERT (ftello (stdin) == 1);
+
+  /* Test ftell after fseek.  */
+  ASSERT (fseek (stdin, 2, SEEK_SET) == 0);
+  ASSERT (ftell (stdin) == 2);
+  ASSERT (ftello (stdin) == 2);
+
+  /* Test ftell after random ungetc.  */
+  ch = fgetc (stdin);
+  ASSERT (ch == '/');
+  ch = ungetc ('@', stdin);
+  ASSERT (ch == '@');
+  ASSERT (ftell (stdin) == 2);
+  ASSERT (ftello (stdin) == 2);
+
+  ch = fgetc (stdin);
+  ASSERT (ch == '@');
+  ASSERT (ftell (stdin) == 3);
+  ASSERT (ftello (stdin) == 3);
+
+  if (2 < argc)
+    {
+      if (FUNC_UNGETC_BROKEN)
+        {
+          fputs ("Skipping test: ungetc cannot handle arbitrary bytes\n",
+                 stderr);
+          return 77;
+        }
+      /* Test ftell after ungetc without read.  */
+      ASSERT (fseek (stdin, 0, SEEK_CUR) == 0);
+      ASSERT (ftell (stdin) == 3);
+      ASSERT (ftello (stdin) == 3);
+
+      ch = ungetc ('~', stdin);
+      ASSERT (ch == '~');
+      ASSERT (ftell (stdin) == 2);
+      ASSERT (ftello (stdin) == 2);
+    }
+
+#if !defined __MINT__ /* FreeMiNT has problems seeking past end of file */
+  /* Test ftell beyond end of file.  */
+  ASSERT (fseek (stdin, 0, SEEK_END) == 0);
+  ch = ftello (stdin);
+  ASSERT (fseek (stdin, 10, SEEK_END) == 0);
+  ASSERT (ftell (stdin) == ch + 10);
+  ASSERT (ftello (stdin) == ch + 10);
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-ftello.sh b/tests/gnu/test-ftello.sh
new file mode 100755
index 00000000..33d2e838
--- /dev/null
+++ b/tests/gnu/test-ftello.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./test-ftello${EXEEXT} 1 < "$srcdir/test-ftello.sh" || exit 1
+echo hi | ./test-ftello${EXEEXT} || exit 1
+exit 0
diff --git a/tests/gnu/test-ftello2.sh b/tests/gnu/test-ftello2.sh
new file mode 100755
index 00000000..ba750b00
--- /dev/null
+++ b/tests/gnu/test-ftello2.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+exec ./test-ftello${EXEEXT} 1 2 < "$srcdir/test-ftello2.sh"
diff --git a/tests/gnu/test-getdtablesize.c b/tests/gnu/test-getdtablesize.c
new file mode 100755
index 00000000..20e18732
--- /dev/null
+++ b/tests/gnu/test-getdtablesize.c
@@ -0,0 +1,34 @@
+/* Test of getdtablesize() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (getdtablesize, int, (void));
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  ASSERT (getdtablesize () >= 3);
+
+  return 0;
+}
diff --git a/tests/gnu/test-gettimeofday.c b/tests/gnu/test-gettimeofday.c
new file mode 100755
index 00000000..ff2bc72b
--- /dev/null
+++ b/tests/gnu/test-gettimeofday.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2005, 2007, 2009, 2010 Free Software Foundation, Inc.
+ * Written by Jim Meyering.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <sys/time.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (gettimeofday, int,
+                 (struct timeval *, GETTIMEOFDAY_TIMEZONE *));
+
+#include <time.h>
+
+#include <stdio.h>
+#include <string.h>
+
+int
+main (void)
+{
+  time_t t = 0;
+  struct tm *lt;
+  struct tm saved_lt;
+  struct timeval tv;
+  lt = localtime (&t);
+  saved_lt = *lt;
+  gettimeofday (&tv, NULL);
+  if (memcmp (lt, &saved_lt, sizeof (struct tm)) != 0)
+    {
+      fprintf (stderr, "gettimeofday still clobbers the localtime buffer!\n");
+      return 1;
+    }
+  return 0;
+}
diff --git a/tests/gnu/test-iconv.c b/tests/gnu/test-iconv.c
new file mode 100755
index 00000000..cf00ac89
--- /dev/null
+++ b/tests/gnu/test-iconv.c
@@ -0,0 +1,148 @@
+/* Test of character set conversion.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#if HAVE_ICONV
+# include <iconv.h>
+
+# ifndef ICONV_CONST
+#  define ICONV_CONST /* empty */
+# endif
+
+#include "signature.h"
+SIGNATURE_CHECK (iconv, size_t, (iconv_t, ICONV_CONST char **, size_t *,
+                                 char **, size_t *));
+SIGNATURE_CHECK (iconv_close, int, (iconv_t x));
+SIGNATURE_CHECK (iconv_open, iconv_t, (char const *, char const *));
+
+#endif
+
+#include <errno.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+#if HAVE_ICONV
+  /* Assume that iconv() supports at least the encodings ASCII, ISO-8859-1,
+     and UTF-8.  */
+  iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
+  iconv_t cd_utf8_to_88591 = iconv_open ("ISO-8859-1", "UTF-8");
+
+  ASSERT (cd_88591_to_utf8 != (iconv_t)(-1));
+  ASSERT (cd_utf8_to_88591 != (iconv_t)(-1));
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  {
+    static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    char buf[50];
+    const char *inptr = input;
+    size_t inbytesleft = strlen (input);
+    char *outptr = buf;
+    size_t outbytesleft = sizeof (buf);
+    size_t res = iconv (cd_88591_to_utf8,
+                        (ICONV_CONST char **) &inptr, &inbytesleft,
+                        &outptr, &outbytesleft);
+    ASSERT (res == 0 && inbytesleft == 0);
+    ASSERT (outptr == buf + strlen (expected));
+    ASSERT (memcmp (buf, expected, strlen (expected)) == 0);
+  }
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with E2BIG.  */
+  {
+    static const char input[] = "\304";
+    static char buf[2] = { (char)0xDE, (char)0xAD };
+    const char *inptr = input;
+    size_t inbytesleft = 1;
+    char *outptr = buf;
+    size_t outbytesleft = 1;
+    size_t res = iconv (cd_88591_to_utf8,
+                        (ICONV_CONST char **) &inptr, &inbytesleft,
+                        &outptr, &outbytesleft);
+    ASSERT (res == (size_t)(-1) && errno == E2BIG);
+    ASSERT (inbytesleft == 1);
+    ASSERT (outbytesleft == 1);
+    ASSERT ((unsigned char) buf[1] == 0xAD);
+    ASSERT ((unsigned char) buf[0] == 0xDE);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  {
+    static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    char buf[50];
+    const char *inptr = input;
+    size_t inbytesleft = strlen (input);
+    char *outptr = buf;
+    size_t outbytesleft = sizeof (buf);
+    size_t res = iconv (cd_utf8_to_88591,
+                        (ICONV_CONST char **) &inptr, &inbytesleft,
+                        &outptr, &outbytesleft);
+    ASSERT (res == 0 && inbytesleft == 0);
+    ASSERT (outptr == buf + strlen (expected));
+    ASSERT (memcmp (buf, expected, strlen (expected)) == 0);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  {
+    static const char input[] = "\342\202\254"; /* EURO SIGN */
+    char buf[10];
+    const char *inptr = input;
+    size_t inbytesleft = strlen (input);
+    char *outptr = buf;
+    size_t outbytesleft = sizeof (buf);
+    size_t res = iconv (cd_utf8_to_88591,
+                        (ICONV_CONST char **) &inptr, &inbytesleft,
+                        &outptr, &outbytesleft);
+    if (res == (size_t)(-1))
+      {
+        ASSERT (errno == EILSEQ);
+        ASSERT (inbytesleft == strlen (input) && outptr == buf);
+      }
+    else
+      {
+        ASSERT (res == 1);
+        ASSERT (inbytesleft == 0);
+      }
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  {
+    static const char input[] = "\342";
+    char buf[10];
+    const char *inptr = input;
+    size_t inbytesleft = 1;
+    char *outptr = buf;
+    size_t outbytesleft = sizeof (buf);
+    size_t res = iconv (cd_utf8_to_88591,
+                        (ICONV_CONST char **) &inptr, &inbytesleft,
+                        &outptr, &outbytesleft);
+    ASSERT (res == (size_t)(-1) && errno == EINVAL);
+    ASSERT (inbytesleft == 1 && outptr == buf);
+  }
+
+  iconv_close (cd_88591_to_utf8);
+  iconv_close (cd_utf8_to_88591);
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-inttypes.c b/tests/gnu/test-inttypes.c
new file mode 100755
index 00000000..f055a4e8
--- /dev/null
+++ b/tests/gnu/test-inttypes.c
@@ -0,0 +1,121 @@
+/* Test of <inttypes.h> substitute.
+   Copyright (C) 2006-2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
+#define __STDC_CONSTANT_MACROS 1 /* to make it work also in C++ mode */
+#define __STDC_FORMAT_MACROS 1 /* to make it work also in C++ mode */
+#include <inttypes.h>
+
+#include <stddef.h>
+
+/* Tests for macros supposed to be defined in inttypes.h.  */
+
+const char *k = /* implicit string concatenation */
+#ifdef INT8_MAX
+  PRId8 PRIi8
+#endif
+#ifdef UINT8_MAX
+  PRIo8 PRIu8 PRIx8 PRIX8
+#endif
+#ifdef INT16_MAX
+  PRId16 PRIi16
+#endif
+#ifdef UINT16_MAX
+  PRIo16 PRIu16 PRIx16 PRIX16
+#endif
+#ifdef INT32_MAX
+  PRId32 PRIi32
+#endif
+#ifdef UINT32_MAX
+  PRIo32 PRIu32 PRIx32 PRIX32
+#endif
+#ifdef INT64_MAX
+  PRId64 PRIi64
+#endif
+#ifdef UINT64_MAX
+  PRIo64 PRIu64 PRIx64 PRIX64
+#endif
+  PRIdLEAST8 PRIiLEAST8 PRIoLEAST8 PRIuLEAST8 PRIxLEAST8 PRIXLEAST8
+  PRIdLEAST16 PRIiLEAST16 PRIoLEAST16 PRIuLEAST16 PRIxLEAST16 PRIXLEAST16
+  PRIdLEAST32 PRIiLEAST32 PRIoLEAST32 PRIuLEAST32 PRIxLEAST32 PRIXLEAST32
+  PRIdLEAST64 PRIiLEAST64
+  PRIoLEAST64 PRIuLEAST64 PRIxLEAST64 PRIXLEAST64
+  PRIdFAST8 PRIiFAST8 PRIoFAST8 PRIuFAST8 PRIxFAST8 PRIXFAST8
+  PRIdFAST16 PRIiFAST16 PRIoFAST16 PRIuFAST16 PRIxFAST16 PRIXFAST16
+  PRIdFAST32 PRIiFAST32 PRIoFAST32 PRIuFAST32 PRIxFAST32 PRIXFAST32
+  PRIdFAST64 PRIiFAST64
+  PRIoFAST64 PRIuFAST64 PRIxFAST64 PRIXFAST64
+  PRIdMAX PRIiMAX PRIoMAX PRIuMAX PRIxMAX PRIXMAX
+#ifdef INTPTR_MAX
+  PRIdPTR PRIiPTR
+#endif
+#ifdef UINTPTR_MAX
+  PRIoPTR PRIuPTR PRIxPTR PRIXPTR
+#endif
+  ;
+const char *l = /* implicit string concatenation */
+#ifdef INT8_MAX
+  SCNd8 SCNi8
+#endif
+#ifdef UINT8_MAX
+  SCNo8 SCNu8 SCNx8
+#endif
+#ifdef INT16_MAX
+  SCNd16 SCNi16
+#endif
+#ifdef UINT16_MAX
+  SCNo16 SCNu16 SCNx16
+#endif
+#ifdef INT32_MAX
+  SCNd32 SCNi32
+#endif
+#ifdef UINT32_MAX
+  SCNo32 SCNu32 SCNx32
+#endif
+#ifdef INT64_MAX
+  SCNd64 SCNi64
+#endif
+#ifdef UINT64_MAX
+  SCNo64 SCNu64 SCNx64
+#endif
+  SCNdLEAST8 SCNiLEAST8 SCNoLEAST8 SCNuLEAST8 SCNxLEAST8
+  SCNdLEAST16 SCNiLEAST16 SCNoLEAST16 SCNuLEAST16 SCNxLEAST16
+  SCNdLEAST32 SCNiLEAST32 SCNoLEAST32 SCNuLEAST32 SCNxLEAST32
+  SCNdLEAST64 SCNiLEAST64
+  SCNoLEAST64 SCNuLEAST64 SCNxLEAST64
+  SCNdFAST8 SCNiFAST8 SCNoFAST8 SCNuFAST8 SCNxFAST8
+  SCNdFAST16 SCNiFAST16 SCNoFAST16 SCNuFAST16 SCNxFAST16
+  SCNdFAST32 SCNiFAST32 SCNoFAST32 SCNuFAST32 SCNxFAST32
+  SCNdFAST64 SCNiFAST64
+  SCNoFAST64 SCNuFAST64 SCNxFAST64
+  SCNdMAX SCNiMAX SCNoMAX SCNuMAX SCNxMAX
+#ifdef INTPTR_MAX
+  SCNdPTR SCNiPTR
+#endif
+#ifdef UINTPTR_MAX
+  SCNoPTR SCNuPTR SCNxPTR
+#endif
+  ;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-isnand-nolibm.c b/tests/gnu/test-isnand-nolibm.c
new file mode 100755
index 00000000..b0ac0ba4
--- /dev/null
+++ b/tests/gnu/test-isnand-nolibm.c
@@ -0,0 +1,22 @@
+/* Test of isnand() substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "isnand-nolibm.h"
+
+#include "test-isnand.h"
+
diff --git a/tests/gnu/test-isnand.h b/tests/gnu/test-isnand.h
new file mode 100755
index 00000000..f9866217
--- /dev/null
+++ b/tests/gnu/test-isnand.h
@@ -0,0 +1,65 @@
+/* Test of isnand() substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <limits.h>
+
+#include "nan.h"
+#include "macros.h"
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zero instead.  */
+double zero = 0.0;
+
+int
+main ()
+{
+  /* Finite values.  */
+  ASSERT (!isnand (3.141));
+  ASSERT (!isnand (3.141e30));
+  ASSERT (!isnand (3.141e-30));
+  ASSERT (!isnand (-2.718));
+  ASSERT (!isnand (-2.718e30));
+  ASSERT (!isnand (-2.718e-30));
+  ASSERT (!isnand (0.0));
+  ASSERT (!isnand (-zero));
+  /* Infinite values.  */
+  ASSERT (!isnand (1.0 / 0.0));
+  ASSERT (!isnand (-1.0 / 0.0));
+  /* Quiet NaN.  */
+  ASSERT (isnand (NaNd ()));
+#if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
+  /* Signalling NaN.  */
+  {
+    #define NWORDS \
+      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+    typedef union { double value; unsigned int word[NWORDS]; } memory_double;
+    memory_double m;
+    m.value = NaNd ();
+# if DBL_EXPBIT0_BIT > 0
+    m.word[DBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (DBL_EXPBIT0_BIT - 1);
+# else
+    m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      |= (unsigned int) 1 << DBL_EXPBIT0_BIT;
+    ASSERT (isnand (m.value));
+  }
+#endif
+  return 0;
+}
diff --git a/tests/gnu/test-isnanf-nolibm.c b/tests/gnu/test-isnanf-nolibm.c
new file mode 100755
index 00000000..6ac69e0d
--- /dev/null
+++ b/tests/gnu/test-isnanf-nolibm.c
@@ -0,0 +1,21 @@
+/* Test of isnanf() substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "isnanf-nolibm.h"
+
+#include "test-isnanf.h"
diff --git a/tests/gnu/test-isnanf.h b/tests/gnu/test-isnanf.h
new file mode 100755
index 00000000..d071b2cc
--- /dev/null
+++ b/tests/gnu/test-isnanf.h
@@ -0,0 +1,67 @@
+/* Test of isnanf() substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <limits.h>
+
+#include "nan.h"
+#include "macros.h"
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
+   So we use -zero instead.  */
+float zero = 0.0f;
+
+int
+main ()
+{
+  /* Finite values.  */
+  ASSERT (!isnanf (3.141f));
+  ASSERT (!isnanf (3.141e30f));
+  ASSERT (!isnanf (3.141e-30f));
+  ASSERT (!isnanf (-2.718f));
+  ASSERT (!isnanf (-2.718e30f));
+  ASSERT (!isnanf (-2.718e-30f));
+  ASSERT (!isnanf (0.0f));
+  ASSERT (!isnanf (-zero));
+  /* Infinite values.  */
+  ASSERT (!isnanf (1.0f / 0.0f));
+  ASSERT (!isnanf (-1.0f / 0.0f));
+  /* Quiet NaN.  */
+  ASSERT (isnanf (NaNf ()));
+#if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
+  /* Signalling NaN.  */
+  {
+    #define NWORDS \
+      ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+    typedef union { float value; unsigned int word[NWORDS]; } memory_float;
+    memory_float m;
+    m.value = NaNf ();
+# if FLT_EXPBIT0_BIT > 0
+    m.word[FLT_EXPBIT0_WORD] ^= (unsigned int) 1 << (FLT_EXPBIT0_BIT - 1);
+# else
+    m.word[FLT_EXPBIT0_WORD + (FLT_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    if (FLT_EXPBIT0_WORD < NWORDS / 2)
+      m.word[FLT_EXPBIT0_WORD + 1] |= (unsigned int) 1 << FLT_EXPBIT0_BIT;
+    else
+      m.word[0] |= (unsigned int) 1;
+    ASSERT (isnanf (m.value));
+  }
+#endif
+  return 0;
+}
diff --git a/tests/gnu/test-isnanl-nolibm.c b/tests/gnu/test-isnanl-nolibm.c
new file mode 100755
index 00000000..eeca6d8f
--- /dev/null
+++ b/tests/gnu/test-isnanl-nolibm.c
@@ -0,0 +1,23 @@
+/* Test of isnanl() substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "isnanl-nolibm.h"
+
+#include "test-isnanl.h"
diff --git a/tests/gnu/test-isnanl.h b/tests/gnu/test-isnanl.h
new file mode 100755
index 00000000..1665cf41
--- /dev/null
+++ b/tests/gnu/test-isnanl.h
@@ -0,0 +1,141 @@
+/* Test of isnanl() substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <float.h>
+#include <limits.h>
+
+#include "nan.h"
+#include "macros.h"
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zero instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zero (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zero compute_minus_zero ()
+#else
+long double minus_zero = -0.0L;
+#endif
+
+int
+main ()
+{
+  #define NWORDS \
+    ((sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+  typedef union { unsigned int word[NWORDS]; long double value; }
+          memory_long_double;
+
+  /* Finite values.  */
+  ASSERT (!isnanl (3.141L));
+  ASSERT (!isnanl (3.141e30L));
+  ASSERT (!isnanl (3.141e-30L));
+  ASSERT (!isnanl (-2.718L));
+  ASSERT (!isnanl (-2.718e30L));
+  ASSERT (!isnanl (-2.718e-30L));
+  ASSERT (!isnanl (0.0L));
+  ASSERT (!isnanl (minus_zero));
+  /* Infinite values.  */
+  ASSERT (!isnanl (1.0L / 0.0L));
+  ASSERT (!isnanl (-1.0L / 0.0L));
+  /* Quiet NaN.  */
+  ASSERT (isnanl (NaNl ()));
+
+#if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT
+  /* A bit pattern that is different from a Quiet NaN.  With a bit of luck,
+     it's a Signalling NaN.  */
+  {
+    memory_long_double m;
+    m.value = NaNl ();
+# if LDBL_EXPBIT0_BIT > 0
+    m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1);
+# else
+    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      |= (unsigned int) 1 << LDBL_EXPBIT0_BIT;
+    ASSERT (isnanl (m.value));
+  }
+#endif
+
+#if ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+   of 'unsigned int' words.  */
+# ifdef WORDS_BIGENDIAN
+#  define LDBL80_WORDS(exponent,manthi,mantlo) \
+     { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+       ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+       (unsigned int) (mantlo) << 16                                        \
+     }
+# else
+#  define LDBL80_WORDS(exponent,manthi,mantlo) \
+     { mantlo, manthi, exponent }
+# endif
+  { /* Quiet NaN.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  {
+    /* Signalling NaN.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  { /* Pseudo-Infinity.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  { /* Pseudo-Zero.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  { /* Unnormalized number.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+  { /* Pseudo-Denormal.  */
+    static memory_long_double x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    ASSERT (isnanl (x.value));
+  }
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-langinfo.c b/tests/gnu/test-langinfo.c
new file mode 100755
index 00000000..7547f3bf
--- /dev/null
+++ b/tests/gnu/test-langinfo.c
@@ -0,0 +1,92 @@
+/* Test of <langinfo.h> substitute.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2009.  */
+
+#include <config.h>
+
+#include <langinfo.h>
+
+/* Check that all the nl_item values are defined.  */
+int items[] =
+  {
+    /* nl_langinfo items of the LC_CTYPE category */
+    CODESET,
+    /* nl_langinfo items of the LC_NUMERIC category */
+    RADIXCHAR,
+    THOUSEP,
+    /* nl_langinfo items of the LC_TIME category */
+    D_T_FMT,
+    D_FMT,
+    T_FMT,
+    T_FMT_AMPM,
+    AM_STR,
+    PM_STR,
+    DAY_1,
+    DAY_2,
+    DAY_3,
+    DAY_4,
+    DAY_5,
+    DAY_6,
+    DAY_7,
+    ABDAY_1,
+    ABDAY_2,
+    ABDAY_3,
+    ABDAY_4,
+    ABDAY_5,
+    ABDAY_6,
+    ABDAY_7,
+    MON_1,
+    MON_2,
+    MON_3,
+    MON_4,
+    MON_5,
+    MON_6,
+    MON_7,
+    MON_8,
+    MON_9,
+    MON_10,
+    MON_11,
+    MON_12,
+    ABMON_1,
+    ABMON_2,
+    ABMON_3,
+    ABMON_4,
+    ABMON_5,
+    ABMON_6,
+    ABMON_7,
+    ABMON_8,
+    ABMON_9,
+    ABMON_10,
+    ABMON_11,
+    ABMON_12,
+    ERA,
+    ERA_D_FMT,
+    ERA_D_T_FMT,
+    ERA_T_FMT,
+    ALT_DIGITS,
+    /* nl_langinfo items of the LC_MONETARY category */
+    CRNCYSTR,
+    /* nl_langinfo items of the LC_MESSAGES category */
+    YESEXPR,
+    NOEXPR
+  };
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-link.c b/tests/gnu/test-link.c
new file mode 100755
index 00000000..65ee9e09
--- /dev/null
+++ b/tests/gnu/test-link.c
@@ -0,0 +1,47 @@
+/* Test of link() function.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (link, int, (char const *, char const *));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-link.t"
+
+#include "test-link.h"
+
+int
+main (void)
+{
+  /* Remove any garbage left from previous partial runs.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_link (link, true);
+}
diff --git a/tests/gnu/test-link.h b/tests/gnu/test-link.h
new file mode 100755
index 00000000..28bdcc13
--- /dev/null
+++ b/tests/gnu/test-link.h
@@ -0,0 +1,176 @@
+/* Test of link() function.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* This file is designed to test both link(a,b) and
+   linkat(AT_FDCWD,a,AT_FDCWD,b,0).  FUNC is the function to test.
+   Assumes that BASE and ASSERT are already defined, and that
+   appropriate headers are already included.  If PRINT, warn before
+   skipping tests with status 77.  This test does not try to create
+   hard links to symlinks, but does test other aspects of symlink.  */
+
+static int
+test_link (int (*func) (char const *, char const *), bool print)
+{
+  int fd;
+  int ret;
+
+  /* Create first file.  */
+  fd = open (BASE "a", O_CREAT | O_EXCL | O_WRONLY, 0600);
+  ASSERT (0 <= fd);
+  ASSERT (write (fd, "hello", 5) == 5);
+  ASSERT (close (fd) == 0);
+
+  /* Not all file systems support link.  Mingw doesn't have reliable
+     st_nlink on hard links, but our implementation does fail with
+     EPERM on poor file systems, and we can detect the inferior stat()
+     via st_ino.  Cygwin 1.5.x copies rather than links files on those
+     file systems, but there, st_nlink and st_ino are reliable.  */
+  ret = func (BASE "a", BASE "b");
+  if (!ret)
+  {
+    struct stat st;
+    ASSERT (stat (BASE "b", &st) == 0);
+    if (st.st_ino && st.st_nlink != 2)
+      {
+        ASSERT (unlink (BASE "b") == 0);
+        errno = EPERM;
+        ret = -1;
+      }
+  }
+  if (ret == -1)
+    {
+      /* If the device does not support hard links, errno is
+         EPERM on Linux, EOPNOTSUPP on FreeBSD.  */
+      switch (errno)
+        {
+        case EPERM:
+        case EOPNOTSUPP:
+          if (print)
+            fputs ("skipping test: "
+                   "hard links not supported on this file system\n",
+                   stderr);
+          ASSERT (unlink (BASE "a") == 0);
+          return 77;
+        default:
+          perror ("link");
+          return 1;
+        }
+    }
+  ASSERT (ret == 0);
+
+  /* Now, for some behavior tests.  Modify the contents of 'b', and
+     ensure that 'a' can see it, both while 'b' exists and after.  */
+  fd = open (BASE "b", O_APPEND | O_WRONLY);
+  ASSERT (0 <= fd);
+  ASSERT (write (fd, "world", 5) == 5);
+  ASSERT (close (fd) == 0);
+  {
+    char buf[11] = { 0 };
+    fd = open (BASE "a", O_RDONLY);
+    ASSERT (0 <= fd);
+    ASSERT (read (fd, buf, 10) == 10);
+    ASSERT (strcmp (buf, "helloworld") == 0);
+    ASSERT (close (fd) == 0);
+    ASSERT (unlink (BASE "b") == 0);
+    fd = open (BASE "a", O_RDONLY);
+    ASSERT (0 <= fd);
+    ASSERT (read (fd, buf, 10) == 10);
+    ASSERT (strcmp (buf, "helloworld") == 0);
+    ASSERT (close (fd) == 0);
+  }
+
+  /* Test for various error conditions.  */
+  ASSERT (mkdir (BASE "d", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "a", ".") == -1);
+  ASSERT (errno == EEXIST || errno == EINVAL);
+  errno = 0;
+  ASSERT (func (BASE "a", BASE "a") == -1);
+  ASSERT (errno == EEXIST);
+  ASSERT (func (BASE "a", BASE "b") == 0);
+  errno = 0;
+  ASSERT (func (BASE "a", BASE "b") == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func (BASE "a", BASE "d") == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func (BASE "c", BASE "e") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "a", BASE "c/.") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "a/", BASE "c") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "a", BASE "c/") == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT);
+
+  /* Most platforms reject hard links to directories, and even on
+     those that do permit it, most users can't create them.  We assume
+     that if this test is run as root and we managed to create a hard
+     link, then unlink better be able to clean it up.  */
+  {
+    int result;
+    errno = 0;
+    result = func (BASE "d", BASE "c");
+    if (result == 0)
+      {
+        /* Probably root on Solaris.  */
+        ASSERT (unlink (BASE "c") == 0);
+      }
+    else
+      {
+        /* Most everyone else.  */
+        ASSERT (errno == EPERM || errno == EACCES);
+        errno = 0;
+        ASSERT (func (BASE "d/.", BASE "c") == -1);
+        ASSERT (errno == EPERM || errno == EACCES || errno == EINVAL);
+        errno = 0;
+        ASSERT (func (BASE "d/.//", BASE "c") == -1);
+        ASSERT (errno == EPERM || errno == EACCES || errno == EINVAL);
+      }
+  }
+  ASSERT (unlink (BASE "a") == 0);
+  errno = 0;
+  ASSERT (unlink (BASE "c") == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (rmdir (BASE "d") == 0);
+
+  /* Test invalid use of symlink.  */
+  if (symlink (BASE "a", BASE "link") != 0)
+    {
+      ASSERT (unlink (BASE "b") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  errno = 0;
+  ASSERT (func (BASE "b", BASE "link/") == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT || errno == EEXIST);
+  ASSERT (rename (BASE "b", BASE "a") == 0);
+  errno = 0;
+  ASSERT (func (BASE "link/", BASE "b") == -1);
+  ASSERT (errno == ENOTDIR || errno == EEXIST);
+
+  /* Clean up.  */
+  ASSERT (unlink (BASE "a") == 0);
+  ASSERT (unlink (BASE "link") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-linkedhash_list.c b/tests/gnu/test-linkedhash_list.c
new file mode 100755
index 00000000..9139c212
--- /dev/null
+++ b/tests/gnu/test-linkedhash_list.c
@@ -0,0 +1,441 @@
+/* Test of sequential list data type implementation.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2006.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "gl_linkedhash_list.h"
+
+#include <limits.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "gl_array_list.h"
+#include "progname.h"
+#include "macros.h"
+
+static const char *objects[15] =
+  {
+    "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o"
+  };
+
+#define SIZE_BITS (sizeof (size_t) * CHAR_BIT)
+
+static bool
+string_equals (const void *x1, const void *x2)
+{
+  const char *s1 = x1;
+  const char *s2 = x2;
+  return strcmp (s1, s2) == 0;
+}
+
+/* A hash function for NUL-terminated char* strings using
+   the method described by Bruno Haible.
+   See http://www.haible.de/bruno/hashfunc.html.  */
+static size_t
+string_hash (const void *x)
+{
+  const char *s = x;
+  size_t h = 0;
+
+  for (; *s; s++)
+    h = *s + ((h << 9) | (h >> (SIZE_BITS - 9)));
+
+  return h;
+}
+
+#define RANDOM(n) (rand () % (n))
+#define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
+
+static void
+check_equals (gl_list_t list1, gl_list_t list2)
+{
+  size_t n, i;
+
+  n = gl_list_size (list1);
+  ASSERT (n == gl_list_size (list2));
+  for (i = 0; i < n; i++)
+    {
+      ASSERT (gl_list_get_at (list1, i) == gl_list_get_at (list2, i));
+    }
+}
+
+static void
+check_all (gl_list_t list1, gl_list_t list2, gl_list_t list3)
+{
+  check_equals (list1, list2);
+  check_equals (list1, list3);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gl_list_t list1, list2, list3;
+
+  set_program_name (argv[0]);
+
+  /* Allow the user to provide a non-default random seed on the command line.  */
+  if (argc > 1)
+    srand (atoi (argv[1]));
+
+  {
+    size_t initial_size = RANDOM (50);
+    const void **contents =
+      (const void **) malloc (initial_size * sizeof (const void *));
+    size_t i;
+    unsigned int repeat;
+
+    for (i = 0; i < initial_size; i++)
+      contents[i] = RANDOM_OBJECT ();
+
+    /* Create list1.  */
+    list1 = gl_list_nx_create (GL_ARRAY_LIST,
+                               string_equals, string_hash, NULL, true,
+                               initial_size, contents);
+    ASSERT (list1 != NULL);
+    /* Create list2.  */
+    list2 = gl_list_nx_create_empty (GL_LINKEDHASH_LIST,
+                                     string_equals, string_hash, NULL, true);
+    ASSERT (list2 != NULL);
+    for (i = 0; i < initial_size; i++)
+      ASSERT (gl_list_nx_add_last (list2, contents[i]) != NULL);
+
+    /* Create list3.  */
+    list3 = gl_list_nx_create (GL_LINKEDHASH_LIST,
+                               string_equals, string_hash, NULL, true,
+                               initial_size, contents);
+    ASSERT (list3 != NULL);
+
+    check_all (list1, list2, list3);
+
+    for (repeat = 0; repeat < 10000; repeat++)
+      {
+        unsigned int operation = RANDOM (16);
+        switch (operation)
+          {
+          case 0:
+            if (gl_list_size (list1) > 0)
+              {
+                size_t index = RANDOM (gl_list_size (list1));
+                const char *obj = RANDOM_OBJECT ();
+                gl_list_node_t node1, node2, node3;
+
+                node1 = gl_list_nx_set_at (list1, index, obj);
+                ASSERT (node1 != NULL);
+                ASSERT (gl_list_get_at (list1, index) == obj);
+                ASSERT (gl_list_node_value (list1, node1) == obj);
+
+                node2 = gl_list_nx_set_at (list2, index, obj);
+                ASSERT (node2 != NULL);
+                ASSERT (gl_list_get_at (list2, index) == obj);
+                ASSERT (gl_list_node_value (list2, node2) == obj);
+
+                node3 = gl_list_nx_set_at (list3, index, obj);
+                ASSERT (node3 != NULL);
+                ASSERT (gl_list_get_at (list3, index) == obj);
+                ASSERT (gl_list_node_value (list3, node3) == obj);
+
+                if (index > 0)
+                  {
+                    ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
+                            == gl_list_get_at (list1, index - 1));
+                    ASSERT (gl_list_node_value (list2, gl_list_previous_node (list3, node3))
+                            == gl_list_get_at (list2, index - 1));
+                    ASSERT (gl_list_node_value (list3, gl_list_previous_node (list3, node3))
+                            == gl_list_get_at (list2, index - 1));
+                  }
+                if (index + 1 < gl_list_size (list1))
+                  {
+                    ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
+                            == gl_list_get_at (list1, index + 1));
+                    ASSERT (gl_list_node_value (list2, gl_list_next_node (list3, node3))
+                            == gl_list_get_at (list2, index + 1));
+                    ASSERT (gl_list_node_value (list3, gl_list_next_node (list3, node3))
+                            == gl_list_get_at (list2, index + 1));
+                  }
+              }
+            break;
+          case 1:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2, node3;
+              node1 = gl_list_search (list1, obj);
+              node2 = gl_list_search (list2, obj);
+              node3 = gl_list_search (list3, obj);
+              if (node1 == NULL)
+                {
+                  ASSERT (node2 == NULL);
+                  ASSERT (node3 == NULL);
+                }
+              else
+                {
+                  ASSERT (node2 != NULL);
+                  ASSERT (node3 != NULL);
+                  ASSERT (gl_list_node_value (list1, node1) == obj);
+                  ASSERT (gl_list_node_value (list2, node2) == obj);
+                  ASSERT (gl_list_node_value (list3, node3) == obj);
+                }
+            }
+            break;
+          case 2:
+            {
+              const char *obj = RANDOM_OBJECT ();
+              size_t index1, index2, index3;
+              index1 = gl_list_indexof (list1, obj);
+              index2 = gl_list_indexof (list2, obj);
+              index3 = gl_list_indexof (list3, obj);
+              if (index1 == (size_t)(-1))
+                {
+                  ASSERT (index2 == (size_t)(-1));
+                  ASSERT (index3 == (size_t)(-1));
+                }
+              else
+                {
+                  ASSERT (index2 != (size_t)(-1));
+                  ASSERT (index3 != (size_t)(-1));
+                  ASSERT (gl_list_get_at (list1, index1) == obj);
+                  ASSERT (gl_list_get_at (list2, index2) == obj);
+                  ASSERT (gl_list_get_at (list3, index3) == obj);
+                  ASSERT (index2 == index1);
+                  ASSERT (index3 == index1);
+                }
+            }
+            break;
+          case 3: /* add 1 element */
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2, node3;
+              node1 = gl_list_nx_add_first (list1, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_first (list2, obj);
+              ASSERT (node2 != NULL);
+              node3 = gl_list_nx_add_first (list3, obj);
+              ASSERT (node3 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              ASSERT (gl_list_node_value (list3, node3) == obj);
+              ASSERT (gl_list_get_at (list1, 0) == obj);
+              ASSERT (gl_list_get_at (list2, 0) == obj);
+              ASSERT (gl_list_get_at (list3, 0) == obj);
+            }
+            break;
+          case 4: /* add 1 element */
+            {
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2, node3;
+              node1 = gl_list_nx_add_last (list1, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_last (list2, obj);
+              ASSERT (node2 != NULL);
+              node3 = gl_list_nx_add_last (list3, obj);
+              ASSERT (node3 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              ASSERT (gl_list_node_value (list3, node3) == obj);
+              ASSERT (gl_list_get_at (list1, gl_list_size (list1) - 1) == obj);
+              ASSERT (gl_list_get_at (list2, gl_list_size (list2) - 1) == obj);
+              ASSERT (gl_list_get_at (list3, gl_list_size (list3) - 1) == obj);
+            }
+            break;
+          case 5: /* add 3 elements */
+            {
+              const char *obj0 = RANDOM_OBJECT ();
+              const char *obj1 = RANDOM_OBJECT ();
+              const char *obj2 = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2, node3;
+              node1 = gl_list_nx_add_first (list1, obj2);
+              ASSERT (node1 != NULL);
+              node1 = gl_list_nx_add_before (list1, node1, obj0);
+              ASSERT (node1 != NULL);
+              node1 = gl_list_nx_add_after (list1, node1, obj1);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_first (list2, obj2);
+              ASSERT (node2 != NULL);
+              node2 = gl_list_nx_add_before (list2, node2, obj0);
+              ASSERT (node2 != NULL);
+              node2 = gl_list_nx_add_after (list2, node2, obj1);
+              ASSERT (node2 != NULL);
+              node3 = gl_list_nx_add_first (list3, obj2);
+              ASSERT (node3 != NULL);
+              node3 = gl_list_nx_add_before (list3, node3, obj0);
+              ASSERT (node3 != NULL);
+              node3 = gl_list_nx_add_after (list3, node3, obj1);
+              ASSERT (node3 != NULL);
+              ASSERT (gl_list_node_value (list1, node1) == obj1);
+              ASSERT (gl_list_node_value (list2, node2) == obj1);
+              ASSERT (gl_list_node_value (list3, node3) == obj1);
+              ASSERT (gl_list_get_at (list1, 0) == obj0);
+              ASSERT (gl_list_get_at (list1, 1) == obj1);
+              ASSERT (gl_list_get_at (list1, 2) == obj2);
+              ASSERT (gl_list_get_at (list2, 0) == obj0);
+              ASSERT (gl_list_get_at (list2, 1) == obj1);
+              ASSERT (gl_list_get_at (list2, 2) == obj2);
+              ASSERT (gl_list_get_at (list3, 0) == obj0);
+              ASSERT (gl_list_get_at (list3, 1) == obj1);
+              ASSERT (gl_list_get_at (list3, 2) == obj2);
+            }
+            break;
+          case 6: /* add 1 element */
+            {
+              size_t index = RANDOM (gl_list_size (list1) + 1);
+              const char *obj = RANDOM_OBJECT ();
+              gl_list_node_t node1, node2, node3;
+              node1 = gl_list_nx_add_at (list1, index, obj);
+              ASSERT (node1 != NULL);
+              node2 = gl_list_nx_add_at (list2, index, obj);
+              ASSERT (node2 != NULL);
+              node3 = gl_list_nx_add_at (list3, index, obj);
+              ASSERT (node3 != NULL);
+              ASSERT (gl_list_get_at (list1, index) == obj);
+              ASSERT (gl_list_node_value (list1, node1) == obj);
+              ASSERT (gl_list_get_at (list2, index) == obj);
+              ASSERT (gl_list_node_value (list2, node2) == obj);
+              ASSERT (gl_list_get_at (list3, index) == obj);
+              ASSERT (gl_list_node_value (list3, node3) == obj);
+              if (index > 0)
+                {
+                  ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
+                          == gl_list_get_at (list1, index - 1));
+                  ASSERT (gl_list_node_value (list2, gl_list_previous_node (list3, node3))
+                          == gl_list_get_at (list2, index - 1));
+                  ASSERT (gl_list_node_value (list3, gl_list_previous_node (list3, node3))
+                          == gl_list_get_at (list2, index - 1));
+                }
+              if (index + 1 < gl_list_size (list1))
+                {
+                  ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
+                          == gl_list_get_at (list1, index + 1));
+                  ASSERT (gl_list_node_value (list2, gl_list_next_node (list3, node3))
+                          == gl_list_get_at (list2, index + 1));
+                  ASSERT (gl_list_node_value (list3, gl_list_next_node (list3, node3))
+                          == gl_list_get_at (list2, index + 1));
+                }
+            }
+            break;
+          case 7: case 8: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = gl_list_get_at (list1, RANDOM (n));
+                gl_list_node_t node1, node2, node3;
+                node1 = gl_list_search (list1, obj);
+                node2 = gl_list_search (list2, obj);
+                node3 = gl_list_search (list3, obj);
+                ASSERT (node1 != NULL);
+                ASSERT (node2 != NULL);
+                ASSERT (node3 != NULL);
+                ASSERT (gl_list_remove_node (list1, node1));
+                ASSERT (gl_list_remove_node (list2, node2));
+                ASSERT (gl_list_remove_node (list3, node3));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 9: case 10: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                size_t index = RANDOM (n);
+                ASSERT (gl_list_remove_at (list1, index));
+                ASSERT (gl_list_remove_at (list2, index));
+                ASSERT (gl_list_remove_at (list3, index));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 11: case 12: /* remove 1 element */
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = gl_list_get_at (list1, RANDOM (n));
+                ASSERT (gl_list_remove (list1, obj));
+                ASSERT (gl_list_remove (list2, obj));
+                ASSERT (gl_list_remove (list3, obj));
+                ASSERT (gl_list_size (list1) == n - 1);
+              }
+            break;
+          case 13:
+            if (gl_list_size (list1) > 0)
+              {
+                size_t n = gl_list_size (list1);
+                const char *obj = "xyzzy";
+                ASSERT (!gl_list_remove (list1, obj));
+                ASSERT (!gl_list_remove (list2, obj));
+                ASSERT (!gl_list_remove (list3, obj));
+                ASSERT (gl_list_size (list1) == n);
+              }
+            break;
+          case 14:
+            {
+              size_t n = gl_list_size (list1);
+              gl_list_iterator_t iter1, iter2, iter3;
+              const void *elt;
+              iter1 = gl_list_iterator (list1);
+              iter2 = gl_list_iterator (list2);
+              iter3 = gl_list_iterator (list3);
+              for (i = 0; i < n; i++)
+                {
+                  ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
+                  ASSERT (gl_list_get_at (list1, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
+                  ASSERT (gl_list_get_at (list2, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter3, &elt, NULL));
+                  ASSERT (gl_list_get_at (list3, i) == elt);
+                }
+              ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter3, &elt, NULL));
+              gl_list_iterator_free (&iter1);
+              gl_list_iterator_free (&iter2);
+              gl_list_iterator_free (&iter3);
+            }
+            break;
+          case 15:
+            {
+              size_t end = RANDOM (gl_list_size (list1) + 1);
+              size_t start = RANDOM (end + 1);
+              gl_list_iterator_t iter1, iter2, iter3;
+              const void *elt;
+              iter1 = gl_list_iterator_from_to (list1, start, end);
+              iter2 = gl_list_iterator_from_to (list2, start, end);
+              iter3 = gl_list_iterator_from_to (list3, start, end);
+              for (i = start; i < end; i++)
+                {
+                  ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
+                  ASSERT (gl_list_get_at (list1, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
+                  ASSERT (gl_list_get_at (list2, i) == elt);
+                  ASSERT (gl_list_iterator_next (&iter3, &elt, NULL));
+                  ASSERT (gl_list_get_at (list3, i) == elt);
+                }
+              ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
+              ASSERT (!gl_list_iterator_next (&iter3, &elt, NULL));
+              gl_list_iterator_free (&iter1);
+              gl_list_iterator_free (&iter2);
+              gl_list_iterator_free (&iter3);
+            }
+            break;
+          }
+        check_all (list1, list2, list3);
+      }
+
+    gl_list_free (list1);
+    gl_list_free (list2);
+    gl_list_free (list3);
+    free (contents);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-lseek.c b/tests/gnu/test-lseek.c
new file mode 100755
index 00000000..bafa9b58
--- /dev/null
+++ b/tests/gnu/test-lseek.c
@@ -0,0 +1,96 @@
+/* Test of lseek() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake, 2007.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (lseek, off_t, (int, off_t, int));
+
+#include <errno.h>
+
+#include "macros.h"
+
+/* ARGC must be 2; *ARGV[1] is '0' if stdin and stdout are files, '1'
+   if they are pipes, and '2' if they are closed.  Check for proper
+   semantics of lseek.  */
+int
+main (int argc, char **argv)
+{
+  if (argc != 2)
+    return 2;
+  switch (*argv[1])
+    {
+    case '0': /* regular files */
+      ASSERT (lseek (0, (off_t)2, SEEK_SET) == 2);
+      ASSERT (lseek (0, (off_t)-4, SEEK_CUR) == -1);
+      ASSERT (errno == EINVAL);
+      errno = 0;
+#if ! defined __BEOS__
+      /* POSIX says that the last lseek call, when failing, does not change
+         the current offset.  But BeOS sets it to 0.  */
+      ASSERT (lseek (0, (off_t)0, SEEK_CUR) == 2);
+#endif
+#if 0 /* leads to SIGSYS on IRIX 6.5 */
+      ASSERT (lseek (0, (off_t)0, (SEEK_SET | SEEK_CUR | SEEK_END) + 1) == -1);
+      ASSERT (errno == EINVAL);
+#endif
+      ASSERT (lseek (1, (off_t)2, SEEK_SET) == 2);
+      errno = 0;
+      ASSERT (lseek (1, (off_t)-4, SEEK_CUR) == -1);
+      ASSERT (errno == EINVAL);
+      errno = 0;
+#if ! defined __BEOS__
+      /* POSIX says that the last lseek call, when failing, does not change
+         the current offset.  But BeOS sets it to 0.  */
+      ASSERT (lseek (1, (off_t)0, SEEK_CUR) == 2);
+#endif
+#if 0 /* leads to SIGSYS on IRIX 6.5 */
+      ASSERT (lseek (1, (off_t)0, (SEEK_SET | SEEK_CUR | SEEK_END) + 1) == -1);
+      ASSERT (errno == EINVAL);
+#endif
+      break;
+
+    case '1': /* pipes */
+      errno = 0;
+      ASSERT (lseek (0, (off_t)0, SEEK_CUR) == -1);
+      ASSERT (errno == ESPIPE);
+      errno = 0;
+      ASSERT (lseek (1, (off_t)0, SEEK_CUR) == -1);
+      ASSERT (errno == ESPIPE);
+      break;
+
+    case '2': /* closed */
+      /* Explicitly close file descriptors 0 and 1.  The <&- and >&- in the
+         invoking shell are not enough on HP-UX.  */
+      close (0);
+      close (1);
+      errno = 0;
+      ASSERT (lseek (0, (off_t)0, SEEK_CUR) == -1);
+      ASSERT (errno == EBADF);
+      errno = 0;
+      ASSERT (lseek (1, (off_t)0, SEEK_CUR) == -1);
+      ASSERT (errno == EBADF);
+      break;
+
+    default:
+      return 1;
+    }
+  return 0;
+}
diff --git a/tests/gnu/test-lseek.sh b/tests/gnu/test-lseek.sh
new file mode 100755
index 00000000..e84c2bb4
--- /dev/null
+++ b/tests/gnu/test-lseek.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+tmpfiles=
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles=t-lseek.tmp
+# seekable files
+./test-lseek${EXEEXT} 0 < "$srcdir/test-lseek.sh" > t-lseek.tmp || exit 1
+
+# pipes
+echo hi | ./test-lseek${EXEEXT} 1 | cat || exit 1
+
+# closed descriptors
+./test-lseek${EXEEXT} 2 <&- >&- || exit 1
+
+rm -rf $tmpfiles
+exit 0
diff --git a/tests/gnu/test-lstat.c b/tests/gnu/test-lstat.c
new file mode 100755
index 00000000..b8f9237e
--- /dev/null
+++ b/tests/gnu/test-lstat.c
@@ -0,0 +1,60 @@
+/* Test of lstat() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Simon Josefsson, 2008; and Eric Blake, 2009.  */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+/* Caution: lstat may be a function-like macro.  Although this
+   signature check must pass, it may be the signature of the real (and
+   broken) lstat rather than rpl_lstat.  Most code should not use the
+   address of lstat.  */
+#include "signature.h"
+SIGNATURE_CHECK (lstat, int, (char const *, struct stat *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "same-inode.h"
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-lstat.t"
+
+#include "test-lstat.h"
+
+/* Wrapper around lstat, which works even if lstat is a function-like
+   macro, where test_lstat_func(lstat) would do the wrong thing.  */
+static int
+do_lstat (char const *name, struct stat *st)
+{
+  return lstat (name, st);
+}
+
+int
+main (void)
+{
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_lstat_func (do_lstat, true);
+}
diff --git a/tests/gnu/test-lstat.h b/tests/gnu/test-lstat.h
new file mode 100755
index 00000000..f120f4c5
--- /dev/null
+++ b/tests/gnu/test-lstat.h
@@ -0,0 +1,116 @@
+/* Test of lstat() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Simon Josefsson, 2008; and Eric Blake, 2009.  */
+
+/* This file is designed to test both lstat(n,buf) and
+   fstatat(AT_FDCWD,n,buf,AT_SYMLINK_NOFOLLOW).  FUNC is the function
+   to test.  Assumes that BASE and ASSERT are already defined, and
+   that appropriate headers are already included.  If PRINT, warn
+   before skipping symlink tests with status 77.  */
+
+static int
+test_lstat_func (int (*func) (char const *, struct stat *), bool print)
+{
+  struct stat st1;
+  struct stat st2;
+
+  /* Test for common directories.  */
+  ASSERT (func (".", &st1) == 0);
+  ASSERT (func ("./", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (S_ISDIR (st1.st_mode));
+  ASSERT (S_ISDIR (st2.st_mode));
+  ASSERT (func ("/", &st1) == 0);
+  ASSERT (func ("///", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (S_ISDIR (st1.st_mode));
+  ASSERT (S_ISDIR (st2.st_mode));
+  ASSERT (func ("..", &st1) == 0);
+  ASSERT (S_ISDIR (st1.st_mode));
+
+  /* Test for error conditions.  */
+  errno = 0;
+  ASSERT (func ("", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  ASSERT (func (BASE "file", &st1) == 0);
+  ASSERT (S_ISREG (st1.st_mode));
+  errno = 0;
+  ASSERT (func (BASE "file/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Now for some symlink tests, where supported.  We set up:
+     link1 -> directory
+     link2 -> file
+     link3 -> dangling
+     link4 -> loop
+     then test behavior both with and without trailing slash.
+  */
+  if (symlink (".", BASE "link1") != 0)
+    {
+      ASSERT (unlink (BASE "file") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  ASSERT (symlink (BASE "file", BASE "link2") == 0);
+  ASSERT (symlink (BASE "nosuch", BASE "link3") == 0);
+  ASSERT (symlink (BASE "link4", BASE "link4") == 0);
+
+  ASSERT (func (BASE "link1", &st1) == 0);
+  ASSERT (S_ISLNK (st1.st_mode));
+  ASSERT (func (BASE "link1/", &st1) == 0);
+  ASSERT (stat (BASE "link1", &st2) == 0);
+  ASSERT (S_ISDIR (st1.st_mode));
+  ASSERT (S_ISDIR (st2.st_mode));
+  ASSERT (SAME_INODE (st1, st2));
+
+  ASSERT (func (BASE "link2", &st1) == 0);
+  ASSERT (S_ISLNK (st1.st_mode));
+  errno = 0;
+  ASSERT (func (BASE "link2/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  ASSERT (func (BASE "link3", &st1) == 0);
+  ASSERT (S_ISLNK (st1.st_mode));
+  errno = 0;
+  ASSERT (func (BASE "link3/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  ASSERT (func (BASE "link4", &st1) == 0);
+  ASSERT (S_ISLNK (st1.st_mode));
+  errno = 0;
+  ASSERT (func (BASE "link4/", &st1) == -1);
+  ASSERT (errno == ELOOP);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link1") == 0);
+  ASSERT (unlink (BASE "link2") == 0);
+  ASSERT (unlink (BASE "link3") == 0);
+  ASSERT (unlink (BASE "link4") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-malloca.c b/tests/gnu/test-malloca.c
new file mode 100755
index 00000000..14ef3a9d
--- /dev/null
+++ b/tests/gnu/test-malloca.c
@@ -0,0 +1,59 @@
+/* Test of safe automatic memory allocation.
+   Copyright (C) 2005, 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2005.  */
+
+#include <config.h>
+
+#include "malloca.h"
+
+#include <stdlib.h>
+
+static void
+do_allocation (int n)
+{
+  void *ptr = malloca (n);
+  freea (ptr);
+  ptr = safe_alloca (n);
+}
+
+void (*func) (int) = do_allocation;
+
+int
+main ()
+{
+  int i;
+
+  /* Repeat a lot of times, to make sure there's no memory leak.  */
+  for (i = 0; i < 50000; i++)
+    {
+      /* Try various values.
+         n = 0 gave a crash on Alpha with gcc-2.5.8.
+         Some versions of MacOS X have a stack size limit of 512 KB.  */
+      func (34);
+      func (134);
+      func (399);
+      func (510823);
+      func (129321);
+      func (0);
+      func (4070);
+      func (4095);
+      func (1);
+      func (16582);
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-math.c b/tests/gnu/test-math.c
new file mode 100755
index 00000000..f940a249
--- /dev/null
+++ b/tests/gnu/test-math.c
@@ -0,0 +1,53 @@
+/* Test of <math.h> substitute.
+   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#ifndef NAN
+# error NAN should be defined
+choke me
+#endif
+
+#if 0
+/* Check that NAN expands into a constant expression.  */
+static float n = NAN;
+#endif
+
+/* Compare two numbers with ==.
+   This is a separate function because IRIX 6.5 "cc -O" miscompiles an
+   'x == x' test.  */
+static int
+numeric_equal (double x, double y)
+{
+  return x == y;
+}
+
+int
+main (void)
+{
+  double d = NAN;
+  double zero = 0.0;
+  if (numeric_equal (d, d))
+    return 1;
+  d = HUGE_VAL;
+  if (!numeric_equal (d, 1.0 / zero))
+    return 1;
+  return 0;
+}
diff --git a/tests/gnu/test-mbrtowc.c b/tests/gnu/test-mbrtowc.c
new file mode 100755
index 00000000..5477677c
--- /dev/null
+++ b/tests/gnu/test-mbrtowc.c
@@ -0,0 +1,323 @@
+/* Test of conversion of multibyte character to wide character.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (mbrtowc, size_t, (wchar_t *, char const *, size_t,
+                                   mbstate_t *));
+
+#include <locale.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  mbstate_t state;
+  wchar_t wc;
+  size_t ret;
+
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  /* Test zero-length input.  */
+  {
+    memset (&state, '\0', sizeof (mbstate_t));
+    wc = (wchar_t) 0xBADFACE;
+    ret = mbrtowc (&wc, "x", 0, &state);
+    /* gnulib's implementation returns (size_t)(-2).
+       The AIX 5.1 implementation returns (size_t)(-1).
+       glibc's implementation returns 0.  */
+    ASSERT (ret == (size_t)(-2) || ret == (size_t)(-1) || ret == 0);
+    ASSERT (mbsinit (&state));
+  }
+
+  /* Test NUL byte input.  */
+  {
+    memset (&state, '\0', sizeof (mbstate_t));
+    wc = (wchar_t) 0xBADFACE;
+    ret = mbrtowc (&wc, "", 1, &state);
+    ASSERT (ret == 0);
+    ASSERT (wc == 0);
+    ASSERT (mbsinit (&state));
+    ret = mbrtowc (NULL, "", 1, &state);
+    ASSERT (ret == 0);
+    ASSERT (mbsinit (&state));
+  }
+
+  /* Test single-byte input.  */
+  {
+    int c;
+    char buf[1];
+
+    memset (&state, '\0', sizeof (mbstate_t));
+    for (c = 0; c < 0x100; c++)
+      switch (c)
+        {
+        case '\t': case '\v': case '\f':
+        case ' ': case '!': case '"': case '#': case '%':
+        case '&': case '\'': case '(': case ')': case '*':
+        case '+': case ',': case '-': case '.': case '/':
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+        case ':': case ';': case '<': case '=': case '>':
+        case '?':
+        case 'A': case 'B': case 'C': case 'D': case 'E':
+        case 'F': case 'G': case 'H': case 'I': case 'J':
+        case 'K': case 'L': case 'M': case 'N': case 'O':
+        case 'P': case 'Q': case 'R': case 'S': case 'T':
+        case 'U': case 'V': case 'W': case 'X': case 'Y':
+        case 'Z':
+        case '[': case '\\': case ']': case '^': case '_':
+        case 'a': case 'b': case 'c': case 'd': case 'e':
+        case 'f': case 'g': case 'h': case 'i': case 'j':
+        case 'k': case 'l': case 'm': case 'n': case 'o':
+        case 'p': case 'q': case 'r': case 's': case 't':
+        case 'u': case 'v': case 'w': case 'x': case 'y':
+        case 'z': case '{': case '|': case '}': case '~':
+          /* c is in the ISO C "basic character set".  */
+          buf[0] = c;
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, buf, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == c);
+          ASSERT (mbsinit (&state));
+          ret = mbrtowc (NULL, buf, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (mbsinit (&state));
+          break;
+        }
+  }
+
+  /* Test special calling convention, passing a NULL pointer.  */
+  {
+    memset (&state, '\0', sizeof (mbstate_t));
+    wc = (wchar_t) 0xBADFACE;
+    ret = mbrtowc (&wc, NULL, 5, &state);
+    ASSERT (ret == 0);
+    ASSERT (wc == (wchar_t) 0xBADFACE);
+    ASSERT (mbsinit (&state));
+  }
+
+  if (argc > 1)
+    switch (argv[1][0])
+      {
+      case '1':
+        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
+        {
+          char input[] = "B\374\337er"; /* "Büßer" */
+          memset (&state, '\0', sizeof (mbstate_t));
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'B');
+          ASSERT (mbsinit (&state));
+          input[0] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 1, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wctob (wc) == (unsigned char) '\374');
+          ASSERT (mbsinit (&state));
+          input[1] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 2, 3, &state);
+          ASSERT (ret == 1);
+          ASSERT (wctob (wc) == (unsigned char) '\337');
+          ASSERT (mbsinit (&state));
+          input[2] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 3, 2, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'e');
+          ASSERT (mbsinit (&state));
+          input[3] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 4, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'r');
+          ASSERT (mbsinit (&state));
+        }
+        return 0;
+
+      case '2':
+        /* Locale encoding is UTF-8.  */
+        {
+          char input[] = "B\303\274\303\237er"; /* "Büßer" */
+          memset (&state, '\0', sizeof (mbstate_t));
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'B');
+          ASSERT (mbsinit (&state));
+          input[0] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 1, 1, &state);
+          ASSERT (ret == (size_t)(-2));
+          ASSERT (wc == (wchar_t) 0xBADFACE);
+          ASSERT (!mbsinit (&state));
+          input[1] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 2, 5, &state);
+          ASSERT (ret == 1);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[2] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 3, 4, &state);
+          ASSERT (ret == 2);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[3] = '\0';
+          input[4] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 5, 2, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'e');
+          ASSERT (mbsinit (&state));
+          input[5] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 6, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'r');
+          ASSERT (mbsinit (&state));
+        }
+        return 0;
+
+      case '3':
+        /* Locale encoding is EUC-JP.  */
+        {
+          char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
+          memset (&state, '\0', sizeof (mbstate_t));
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == '<');
+          ASSERT (mbsinit (&state));
+          input[0] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 1, 2, &state);
+          ASSERT (ret == 2);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[1] = '\0';
+          input[2] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 3, 1, &state);
+          ASSERT (ret == (size_t)(-2));
+          ASSERT (wc == (wchar_t) 0xBADFACE);
+          ASSERT (!mbsinit (&state));
+          input[3] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 4, 4, &state);
+          ASSERT (ret == 1);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[4] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 5, 3, &state);
+          ASSERT (ret == 2);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[5] = '\0';
+          input[6] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 7, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == '>');
+          ASSERT (mbsinit (&state));
+        }
+        return 0;
+
+      case '4':
+        /* Locale encoding is GB18030.  */
+        {
+          char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
+          memset (&state, '\0', sizeof (mbstate_t));
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'B');
+          ASSERT (mbsinit (&state));
+          input[0] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 1, 1, &state);
+          ASSERT (ret == (size_t)(-2));
+          ASSERT (wc == (wchar_t) 0xBADFACE);
+          ASSERT (!mbsinit (&state));
+          input[1] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 2, 7, &state);
+          ASSERT (ret == 1);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[2] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 3, 6, &state);
+          ASSERT (ret == 4);
+          ASSERT (wctob (wc) == EOF);
+          ASSERT (mbsinit (&state));
+          input[3] = '\0';
+          input[4] = '\0';
+          input[5] = '\0';
+          input[6] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 7, 2, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'e');
+          ASSERT (mbsinit (&state));
+          input[5] = '\0';
+
+          wc = (wchar_t) 0xBADFACE;
+          ret = mbrtowc (&wc, input + 8, 1, &state);
+          ASSERT (ret == 1);
+          ASSERT (wc == 'r');
+          ASSERT (mbsinit (&state));
+        }
+        return 0;
+      }
+
+  return 1;
+}
diff --git a/tests/gnu/test-mbrtowc1.sh b/tests/gnu/test-mbrtowc1.sh
new file mode 100755
index 00000000..3becba3a
--- /dev/null
+++ b/tests/gnu/test-mbrtowc1.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test in an ISO-8859-1 or ISO-8859-15 locale.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no traditional french locale is installed"
+  else
+    echo "Skipping test: no traditional french locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR \
+./test-mbrtowc${EXEEXT} 1
diff --git a/tests/gnu/test-mbrtowc2.sh b/tests/gnu/test-mbrtowc2.sh
new file mode 100755
index 00000000..0405abaf
--- /dev/null
+++ b/tests/gnu/test-mbrtowc2.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french Unicode locale is installed"
+  else
+    echo "Skipping test: no french Unicode locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR_UTF8 \
+./test-mbrtowc${EXEEXT} 2
diff --git a/tests/gnu/test-mbrtowc3.sh b/tests/gnu/test-mbrtowc3.sh
new file mode 100755
index 00000000..63a89a2e
--- /dev/null
+++ b/tests/gnu/test-mbrtowc3.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific EUC-JP locale is installed.
+: ${LOCALE_JA=ja_JP}
+if test $LOCALE_JA = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no traditional japanese locale is installed"
+  else
+    echo "Skipping test: no traditional japanese locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_JA \
+./test-mbrtowc${EXEEXT} 3
diff --git a/tests/gnu/test-mbrtowc4.sh b/tests/gnu/test-mbrtowc4.sh
new file mode 100755
index 00000000..b299a2c4
--- /dev/null
+++ b/tests/gnu/test-mbrtowc4.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific GB18030 locale is installed.
+: ${LOCALE_ZH_CN=zh_CN.GB18030}
+if test $LOCALE_ZH_CN = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no transitional chinese locale is installed"
+  else
+    echo "Skipping test: no transitional chinese locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_ZH_CN \
+./test-mbrtowc${EXEEXT} 4
diff --git a/tests/gnu/test-mbsinit.c b/tests/gnu/test-mbsinit.c
new file mode 100755
index 00000000..4ca0fc37
--- /dev/null
+++ b/tests/gnu/test-mbsinit.c
@@ -0,0 +1,53 @@
+/* Test of test for initial conversion state.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (mbsinit, int, (const mbstate_t *));
+
+#include <locale.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  static mbstate_t state;
+
+  ASSERT (mbsinit (&state));
+
+  if (argc > 1)
+    {
+      static const char input[1] = "\303";
+      wchar_t wc;
+      size_t ret;
+
+      /* configure should already have checked that the locale is supported.  */
+      if (setlocale (LC_ALL, "") == NULL)
+        return 1;
+
+      ret = mbrtowc (&wc, input, 1, &state);
+      ASSERT (ret == (size_t)(-2));
+      ASSERT (!mbsinit (&state));
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-mbsinit.sh b/tests/gnu/test-mbsinit.sh
new file mode 100755
index 00000000..bbda48d2
--- /dev/null
+++ b/tests/gnu/test-mbsinit.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french Unicode locale is installed"
+  else
+    echo "Skipping test: no french Unicode locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR_UTF8 \
+./test-mbsinit${EXEEXT}
diff --git a/tests/gnu/test-mbsstr1.c b/tests/gnu/test-mbsstr1.c
new file mode 100755
index 00000000..e9fb50ea
--- /dev/null
+++ b/tests/gnu/test-mbsstr1.c
@@ -0,0 +1,128 @@
+/* Test of searching in a string.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <stdlib.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+  /* This test is executed in the C locale.  */
+
+  {
+    const char input[] = "foo";
+    const char *result = mbsstr (input, "");
+    ASSERT (result == input);
+  }
+
+  {
+    const char input[] = "foo";
+    const char *result = mbsstr (input, "o");
+    ASSERT (result == input + 1);
+  }
+
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = mbsstr (input, "ABCDABD");
+    ASSERT (result == input + 15);
+  }
+
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = mbsstr (input, "ABCDABE");
+    ASSERT (result == NULL);
+  }
+
+  /* Check that a very long haystack is handled quickly if the needle is
+     short and occurs near the beginning.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *needle =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
+    char *haystack = (char *) malloc (m + 1);
+    if (haystack != NULL)
+      {
+        memset (haystack, 'A', m);
+        haystack[0] = 'B';
+        haystack[m] = '\0';
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (mbsstr (haystack, needle) == haystack + 1);
+          }
+
+        free (haystack);
+      }
+  }
+
+  /* Check that a very long needle is discarded quickly if the haystack is
+     short.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *haystack =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "ABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABAB";
+    char *needle = (char *) malloc (m + 1);
+    if (needle != NULL)
+      {
+        memset (needle, 'A', m);
+        needle[m] = '\0';
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (mbsstr (haystack, needle) == NULL);
+          }
+
+        free (needle);
+      }
+  }
+
+  /* Check that the asymptotic worst-case complexity is not quadratic.  */
+  {
+    size_t m = 1000000;
+    char *haystack = (char *) malloc (2 * m + 2);
+    char *needle = (char *) malloc (m + 2);
+    if (haystack != NULL && needle != NULL)
+      {
+        const char *result;
+
+        memset (haystack, 'A', 2 * m);
+        haystack[2 * m] = 'B';
+        haystack[2 * m + 1] = '\0';
+
+        memset (needle, 'A', m);
+        needle[m] = 'B';
+        needle[m + 1] = '\0';
+
+        result = mbsstr (haystack, needle);
+        ASSERT (result == haystack + m);
+      }
+    free (needle);
+    free (haystack);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-mbsstr2.c b/tests/gnu/test-mbsstr2.c
new file mode 100755
index 00000000..488b2108
--- /dev/null
+++ b/tests/gnu/test-mbsstr2.c
@@ -0,0 +1,141 @@
+/* Test of searching in a string.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <locale.h>
+#include <stdlib.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  {
+    const char input[] = "f\303\266\303\266";
+    const char *result = mbsstr (input, "");
+    ASSERT (result == input);
+  }
+
+  {
+    const char input[] = "f\303\266\303\266";
+    const char *result = mbsstr (input, "\303\266");
+    ASSERT (result == input + 1);
+  }
+
+  {
+    const char input[] = "f\303\266\303\266";
+    const char *result = mbsstr (input, "\266\303");
+    ASSERT (result == NULL);
+  }
+
+  {
+    const char input[] = "\303\204BC \303\204BCD\303\204B \303\204BCD\303\204BCD\303\204BDE"; /* "ÄBC ÄBCDÄB ÄBCDÄBCDÄBDE" */
+    const char *result = mbsstr (input, "\303\204BCD\303\204BD"); /* "ÄBCDÄBD" */
+    ASSERT (result == input + 19);
+  }
+
+  {
+    const char input[] = "\303\204BC \303\204BCD\303\204B \303\204BCD\303\204BCD\303\204BDE"; /* "ÄBC ÄBCDÄB ÄBCDÄBCDÄBDE" */
+    const char *result = mbsstr (input, "\303\204BCD\303\204BE"); /* "ÄBCDÄBE" */
+    ASSERT (result == NULL);
+  }
+
+  /* Check that a very long haystack is handled quickly if the needle is
+     short and occurs near the beginning.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *needle =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
+    char *haystack = (char *) malloc (m + 1);
+    if (haystack != NULL)
+      {
+        memset (haystack, 'A', m);
+        haystack[0] = '\303'; haystack[1] = '\204';
+        haystack[m] = '\0';
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (mbsstr (haystack, needle) == haystack + 2);
+          }
+
+        free (haystack);
+      }
+  }
+
+  /* Check that a very long needle is discarded quickly if the haystack is
+     short.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *haystack =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207"
+      "A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207"
+      "A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207"
+      "A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207"
+      "A\303\207A\303\207A\303\207A\303\207A\303\207A\303\207";
+    char *needle = (char *) malloc (m + 1);
+    if (needle != NULL)
+      {
+        memset (needle, 'A', m);
+        needle[m] = '\0';
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (mbsstr (haystack, needle) == NULL);
+          }
+
+        free (needle);
+      }
+  }
+
+  /* Check that the asymptotic worst-case complexity is not quadratic.  */
+  {
+    size_t m = 1000000;
+    char *haystack = (char *) malloc (2 * m + 3);
+    char *needle = (char *) malloc (m + 3);
+    if (haystack != NULL && needle != NULL)
+      {
+        const char *result;
+
+        memset (haystack, 'A', 2 * m);
+        haystack[2 * m] = '\303'; haystack[2 * m + 1] = '\207';
+        haystack[2 * m + 2] = '\0';
+
+        memset (needle, 'A', m);
+        needle[m] = '\303'; needle[m + 1] = '\207';
+        needle[m + 2] = '\0';
+
+        result = mbsstr (haystack, needle);
+        ASSERT (result == haystack + m);
+      }
+    free (needle);
+    free (haystack);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-mbsstr2.sh b/tests/gnu/test-mbsstr2.sh
new file mode 100755
index 00000000..79d06df6
--- /dev/null
+++ b/tests/gnu/test-mbsstr2.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no french Unicode locale is installed"
+  else
+    echo "Skipping test: no french Unicode locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_FR_UTF8 \
+./test-mbsstr2${EXEEXT}
diff --git a/tests/gnu/test-mbsstr3.c b/tests/gnu/test-mbsstr3.c
new file mode 100755
index 00000000..a1479be4
--- /dev/null
+++ b/tests/gnu/test-mbsstr3.c
@@ -0,0 +1,81 @@
+/* Test of searching in a string.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <locale.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  /* Tests with a character < 0x30.  */
+  {
+    const char input[] = "\312\276\300\375 \312\276\300\375 \312\276\300\375"; /* "示例 示例 示例" */
+    const char *result = mbsstr (input, " ");
+    ASSERT (result == input + 4);
+  }
+
+  {
+    const char input[] = "\312\276\300\375"; /* "示例" */
+    const char *result = mbsstr (input, " ");
+    ASSERT (result == NULL);
+  }
+
+  /* Tests with a character >= 0x30.  */
+  {
+    const char input[] = "\272\305123\324\313\320\320\241\243"; /* "号123运行。" */
+    const char *result = mbsstr (input, "2");
+    ASSERT (result == input + 3);
+  }
+
+  /* The following tests show how mbsstr() is different from strstr().  */
+
+  {
+    const char input[] = "\313\320\320\320"; /* "诵行" */
+    const char *result = mbsstr (input, "\320\320"); /* "行" */
+    ASSERT (result == input + 2);
+  }
+
+  {
+    const char input[] = "\203\062\332\066123\324\313\320\320\241\243"; /* "씋123运行。" */
+    const char *result = mbsstr (input, "2");
+    ASSERT (result == input + 5);
+  }
+
+  {
+    const char input[] = "\312\276\300\375 \312\276\300\375 \312\276\300\375"; /* "示例 示例 示例" */
+    const char *result = mbsstr (input, "\276\300"); /* "纠" */
+    ASSERT (result == NULL);
+  }
+
+  {
+    const char input[] = "\312\276\300\375 \312\276\300\375 \312\276\300\375"; /* "示例 示例 示例" */
+    const char *result = mbsstr (input, "\375 "); /* invalid multibyte sequence */
+    ASSERT (result == NULL);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-mbsstr3.sh b/tests/gnu/test-mbsstr3.sh
new file mode 100755
index 00000000..732c01fd
--- /dev/null
+++ b/tests/gnu/test-mbsstr3.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+# Test whether a specific GB18030 locale is installed.
+: ${LOCALE_ZH_CN=zh_CN.GB18030}
+if test $LOCALE_ZH_CN = none; then
+  if test -f /usr/bin/localedef; then
+    echo "Skipping test: no chinese GB18030 locale is installed"
+  else
+    echo "Skipping test: no chinese GB18030 locale is supported"
+  fi
+  exit 77
+fi
+
+LC_ALL=$LOCALE_ZH_CN \
+./test-mbsstr3${EXEEXT}
diff --git a/tests/gnu/test-memchr.c b/tests/gnu/test-memchr.c
new file mode 100755
index 00000000..a8016140
--- /dev/null
+++ b/tests/gnu/test-memchr.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright (C) 2008-2010 Free Software Foundation, Inc.
+ * Written by Eric Blake and Bruno Haible
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (memchr, void *, (void const *, int, size_t));
+
+#include <stdlib.h>
+
+#include "zerosize-ptr.h"
+#include "macros.h"
+
+/* Calculating void * + int is not portable, so this wrapper converts
+   to char * to make the tests easier to write.  */
+#define MEMCHR (char *) memchr
+
+int
+main (void)
+{
+  size_t n = 0x100000;
+  char *input = malloc (n);
+  ASSERT (input);
+
+  input[0] = 'a';
+  input[1] = 'b';
+  memset (input + 2, 'c', 1024);
+  memset (input + 1026, 'd', n - 1028);
+  input[n - 2] = 'e';
+  input[n - 1] = 'a';
+
+  /* Basic behavior tests.  */
+  ASSERT (MEMCHR (input, 'a', n) == input);
+
+  ASSERT (MEMCHR (input, 'a', 0) == NULL);
+  ASSERT (MEMCHR (zerosize_ptr (), 'a', 0) == NULL);
+
+  ASSERT (MEMCHR (input, 'b', n) == input + 1);
+  ASSERT (MEMCHR (input, 'c', n) == input + 2);
+  ASSERT (MEMCHR (input, 'd', n) == input + 1026);
+
+  ASSERT (MEMCHR (input + 1, 'a', n - 1) == input + n - 1);
+  ASSERT (MEMCHR (input + 1, 'e', n - 1) == input + n - 2);
+
+  ASSERT (MEMCHR (input, 'f', n) == NULL);
+  ASSERT (MEMCHR (input, '\0', n) == NULL);
+
+  /* Check that a very long haystack is handled quickly if the byte is
+     found near the beginning.  */
+  {
+    size_t repeat = 10000;
+    for (; repeat > 0; repeat--)
+      {
+        ASSERT (MEMCHR (input, 'c', n) == input + 2);
+      }
+  }
+
+  /* Alignment tests.  */
+  {
+    int i, j;
+    for (i = 0; i < 32; i++)
+      {
+        for (j = 0; j < 256; j++)
+          input[i + j] = j;
+        for (j = 0; j < 256; j++)
+          {
+            ASSERT (MEMCHR (input + i, j, 256) == input + i + j);
+          }
+      }
+  }
+
+  /* Check that memchr() does not read past the first occurrence of the
+     byte being searched.  See the Austin Group's clarification
+     <http://www.opengroup.org/austin/docs/austin_454.txt>.  */
+  {
+    char *page_boundary = (char *) zerosize_ptr ();
+
+    if (page_boundary != NULL)
+      {
+        for (n = 1; n <= 500; n++)
+          {
+            char *mem = page_boundary - n;
+            memset (mem, 'X', n);
+            ASSERT (MEMCHR (mem, 'U', n) == NULL);
+
+            {
+              size_t i;
+
+              for (i = 0; i < n; i++)
+                {
+                  mem[i] = 'U';
+                  ASSERT (MEMCHR (mem, 'U', 4000) == mem + i);
+                  mem[i] = 'X';
+                }
+            }
+          }
+      }
+  }
+
+  free (input);
+
+  return 0;
+}
diff --git a/tests/gnu/test-memchr2.c b/tests/gnu/test-memchr2.c
new file mode 100755
index 00000000..bb81c0b4
--- /dev/null
+++ b/tests/gnu/test-memchr2.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2008-2010 Free Software Foundation, Inc.
+ * Written by Eric Blake
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include "memchr2.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "zerosize-ptr.h"
+#include "macros.h"
+
+/* Calculating void * + int is not portable, so this wrapper converts
+   to char * to make the tests easier to write.  */
+#define MEMCHR2 (char *) memchr2
+
+int
+main (void)
+{
+  size_t n = 0x100000;
+  char *input = malloc (n);
+  ASSERT (input);
+
+  input[0] = 'a';
+  input[1] = 'b';
+  memset (input + 2, 'c', 1024);
+  memset (input + 1026, 'd', n - 1028);
+  input[n - 2] = 'e';
+  input[n - 1] = 'a';
+
+  /* Basic behavior tests.  */
+  ASSERT (MEMCHR2 (input, 'a', 'b', n) == input);
+  ASSERT (MEMCHR2 (input, 'b', 'a', n) == input);
+
+  ASSERT (MEMCHR2 (input, 'a', 'b', 0) == NULL);
+  ASSERT (MEMCHR2 (zerosize_ptr (), 'a', 'b', 0) == NULL);
+
+  ASSERT (MEMCHR2 (input, 'b', 'd', n) == input + 1);
+  ASSERT (MEMCHR2 (input + 2, 'b', 'd', n - 2) == input + 1026);
+
+  ASSERT (MEMCHR2 (input, 'd', 'e', n) == input + 1026);
+  ASSERT (MEMCHR2 (input, 'e', 'd', n) == input + 1026);
+
+  ASSERT (MEMCHR2 (input + 1, 'a', 'e', n - 1) == input + n - 2);
+  ASSERT (MEMCHR2 (input + 1, 'e', 'a', n - 1) == input + n - 2);
+
+  ASSERT (MEMCHR2 (input, 'f', 'g', n) == NULL);
+  ASSERT (MEMCHR2 (input, 'f', '\0', n) == NULL);
+
+  ASSERT (MEMCHR2 (input, 'a', 'a', n) == input);
+  ASSERT (MEMCHR2 (input + 1, 'a', 'a', n - 1) == input + n - 1);
+  ASSERT (MEMCHR2 (input, 'f', 'f', n) == NULL);
+
+  /* Check that a very long haystack is handled quickly if one of the
+     two bytes is found near the beginning.  */
+  {
+    size_t repeat = 10000;
+    for (; repeat > 0; repeat--)
+      {
+        ASSERT (MEMCHR2 (input, 'c', 'e', n) == input + 2);
+        ASSERT (MEMCHR2 (input, 'e', 'c', n) == input + 2);
+        ASSERT (MEMCHR2 (input, 'c', '\0', n) == input + 2);
+        ASSERT (MEMCHR2 (input, '\0', 'c', n) == input + 2);
+      }
+  }
+
+  /* Alignment tests.  */
+  {
+    int i, j;
+    for (i = 0; i < 32; i++)
+      {
+        for (j = 0; j < 256; j++)
+          input[i + j] = j;
+        for (j = 0; j < 256; j++)
+          {
+            ASSERT (MEMCHR2 (input + i, j, 0xff, 256) == input + i + j);
+            ASSERT (MEMCHR2 (input + i, 0xff, j, 256) == input + i + j);
+          }
+      }
+  }
+
+  free (input);
+
+  return 0;
+}
diff --git a/tests/gnu/test-memmem.c b/tests/gnu/test-memmem.c
new file mode 100755
index 00000000..a9d3558c
--- /dev/null
+++ b/tests/gnu/test-memmem.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (C) 2004, 2007-2010 Free Software Foundation, Inc.
+ * Written by Bruno Haible and Eric Blake
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (memmem, void *, (void const *, size_t, void const *, size_t));
+
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "zerosize-ptr.h"
+#include "macros.h"
+
+static void *
+null_ptr (void)
+{
+  return NULL;
+}
+
+int
+main (int argc, char *argv[])
+{
+#if HAVE_DECL_ALARM
+  /* Declare failure if test takes too long, by using default abort
+     caused by SIGALRM.  All known platforms that lack alarm also lack
+     memmem, and the replacement memmem is known to not take too
+     long.  */
+  signal (SIGALRM, SIG_DFL);
+  alarm (100);
+#endif
+
+  {
+    const char input[] = "foo";
+    const char *result = memmem (input, strlen (input), "", 0);
+    ASSERT (result == input);
+  }
+
+  {
+    const char input[] = "foo";
+    const char *result = memmem (input, strlen (input), "o", 1);
+    ASSERT (result == input + 1);
+  }
+
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = memmem (input, strlen (input), "ABCDABD", 7);
+    ASSERT (result == input + 15);
+  }
+
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = memmem (input, strlen (input), "ABCDABE", 7);
+    ASSERT (result == NULL);
+  }
+
+  {
+    const char input[] = "ABC ABCDAB ABCDABCDABDE";
+    const char *result = memmem (input, strlen (input), "ABCDABCD", 8);
+    ASSERT (result == input + 11);
+  }
+
+  /* Check that length 0 does not dereference the pointer.  */
+  {
+    const char *result = memmem (zerosize_ptr (), 0, "foo", 3);
+    ASSERT (result == NULL);
+  }
+
+  {
+    const char input[] = "foo";
+    const char *result = memmem (input, strlen (input), null_ptr (), 0);
+    ASSERT (result == input);
+  }
+
+  /* Check that a very long haystack is handled quickly if the needle is
+     short and occurs near the beginning.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *needle =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
+    size_t n = strlen (needle);
+    char *haystack = (char *) malloc (m + 1);
+    if (haystack != NULL)
+      {
+        memset (haystack, 'A', m);
+        haystack[0] = 'B';
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (memmem (haystack, m, needle, n) == haystack + 1);
+          }
+
+        free (haystack);
+      }
+  }
+
+  /* Check that a very long needle is discarded quickly if the haystack is
+     short.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    char *haystack =
+      "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
+      "ABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABABAB";
+    size_t n = strlen (haystack);
+    char *needle = (char *) malloc (m + 1);
+    if (needle != NULL)
+      {
+        memset (needle, 'A', m);
+
+        for (; repeat > 0; repeat--)
+          {
+            ASSERT (memmem (haystack, n, needle, m) == NULL);
+          }
+
+        free (needle);
+      }
+  }
+
+  /* Check that the asymptotic worst-case complexity is not quadratic.  */
+  {
+    size_t m = 1000000;
+    char *haystack = (char *) malloc (2 * m + 1);
+    char *needle = (char *) malloc (m + 1);
+    if (haystack != NULL && needle != NULL)
+      {
+        const char *result;
+
+        memset (haystack, 'A', 2 * m);
+        haystack[2 * m] = 'B';
+
+        memset (needle, 'A', m);
+        needle[m] = 'B';
+
+        result = memmem (haystack, 2 * m + 1, needle, m + 1);
+        ASSERT (result == haystack + m);
+      }
+    free (needle);
+    free (haystack);
+  }
+
+  /* Check that long needles not present in a haystack can be handled
+     with sublinear speed.  */
+  {
+    size_t repeat = 10000;
+    size_t m = 1000000;
+    size_t n = 1000;
+    char *haystack = (char *) malloc (m);
+    char *needle = (char *) malloc (n);
+    if (haystack != NULL && needle != NULL)
+      {
+        const char *result;
+
+        memset (haystack, 'A', m);
+        memset (needle, 'B', n);
+
+        for (; repeat > 0; repeat--)
+          {
+            result = memmem (haystack, m, needle, n);
+            ASSERT (result == NULL);
+          }
+      }
+    free (haystack);
+    free (needle);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-nl_langinfo.c b/tests/gnu/test-nl_langinfo.c
new file mode 100755
index 00000000..ec89b3f7
--- /dev/null
+++ b/tests/gnu/test-nl_langinfo.c
@@ -0,0 +1,115 @@
+/* Test of nl_langinfo replacement.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2009.  */
+
+#include <config.h>
+
+#include <langinfo.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (nl_langinfo, char *, (nl_item));
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "c-strcase.h"
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  int pass = atoi (argv[1]);
+  /* pass    locale
+      0        C
+      1        traditional French locale
+      2        French UTF-8 locale
+   */
+
+  setlocale (LC_ALL, "");
+
+  /* nl_langinfo items of the LC_CTYPE category */
+  ASSERT (strlen (nl_langinfo (CODESET)) > 0);
+  if (pass == 2)
+    {
+      const char *codeset = nl_langinfo (CODESET);
+      ASSERT (c_strcasecmp (codeset, "UTF-8") == 0 || c_strcasecmp (codeset, "UTF8") == 0);
+    }
+  /* nl_langinfo items of the LC_NUMERIC category */
+  ASSERT (strlen (nl_langinfo (RADIXCHAR)) > 0);
+  ASSERT (strlen (nl_langinfo (THOUSEP)) >= 0);
+  /* nl_langinfo items of the LC_TIME category */
+  ASSERT (strlen (nl_langinfo (D_T_FMT)) > 0);
+  ASSERT (strlen (nl_langinfo (D_FMT)) > 0);
+  ASSERT (strlen (nl_langinfo (T_FMT)) > 0);
+  ASSERT (strlen (nl_langinfo (T_FMT_AMPM)) >= (pass == 0 ? 1 : 0));
+  ASSERT (strlen (nl_langinfo (AM_STR)) >= (pass == 0 ? 1 : 0));
+  ASSERT (strlen (nl_langinfo (PM_STR)) >= (pass == 0 ? 1 : 0));
+  ASSERT (strlen (nl_langinfo (DAY_1)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_2)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_3)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_4)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_5)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_6)) > 0);
+  ASSERT (strlen (nl_langinfo (DAY_7)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_1)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_2)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_3)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_4)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_5)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_6)) > 0);
+  ASSERT (strlen (nl_langinfo (ABDAY_7)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_1)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_2)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_3)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_4)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_5)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_6)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_7)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_8)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_9)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_10)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_11)) > 0);
+  ASSERT (strlen (nl_langinfo (MON_12)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_1)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_2)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_3)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_4)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_5)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_6)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_7)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_8)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_9)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_10)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_11)) > 0);
+  ASSERT (strlen (nl_langinfo (ABMON_12)) > 0);
+  ASSERT (strlen (nl_langinfo (ERA)) >= 0);
+  ASSERT (strlen (nl_langinfo (ERA_D_FMT)) >= 0);
+  ASSERT (strlen (nl_langinfo (ERA_D_T_FMT)) >= 0);
+  ASSERT (strlen (nl_langinfo (ERA_T_FMT)) >= 0);
+  ASSERT (nl_langinfo (ALT_DIGITS) != NULL);
+  /* nl_langinfo items of the LC_MONETARY category */
+  {
+    const char *currency = nl_langinfo (CRNCYSTR);
+    ASSERT (strlen (currency) >= (pass > 0 ? 1 : 0));
+  }
+  /* nl_langinfo items of the LC_MESSAGES category */
+  ASSERT (strlen (nl_langinfo (YESEXPR)) > 0);
+  ASSERT (strlen (nl_langinfo (NOEXPR)) > 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-nl_langinfo.sh b/tests/gnu/test-nl_langinfo.sh
new file mode 100755
index 00000000..3168f426
--- /dev/null
+++ b/tests/gnu/test-nl_langinfo.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+LC_ALL=C ./test-nl_langinfo${EXEEXT} 0 || exit 1
+
+# Test whether a specific traditional locale is installed.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR != none; then
+  LC_ALL=$LOCALE_FR ./test-nl_langinfo${EXEEXT} 1 || exit 1
+fi
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 != none; then
+  LC_ALL=$LOCALE_FR_UTF8 ./test-nl_langinfo${EXEEXT} 2 || exit 1
+fi
+
+exit 0
diff --git a/tests/gnu/test-obstack-printf.c b/tests/gnu/test-obstack-printf.c
new file mode 100755
index 00000000..6d2aceca
--- /dev/null
+++ b/tests/gnu/test-obstack-printf.c
@@ -0,0 +1,138 @@
+/* Test of obstack_printf() and obstack_vprintf() functions.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2008.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (obstack_printf, int, (struct obstack *, char const *, ...));
+SIGNATURE_CHECK (obstack_vprintf, int, (struct obstack *, char const *,
+                                        va_list));
+
+#include "obstack.h"
+#include "xalloc.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "progname.h"
+#include "macros.h"
+
+#define obstack_chunk_alloc xmalloc
+#define obstack_chunk_free free
+
+static void
+test_function (int (*my_obstack_printf) (struct obstack *, const char *, ...))
+{
+  struct obstack obs;
+  obstack_init (&obs);
+  /* In general, be careful that arguments to obstack_* don't have
+     side effects, as not all compilers evaluate macro arguments only
+     once.  */
+
+  /* Grow the obstack to near its boundary, then check that short
+     output longer than the obstack free space grows the obstack.  */
+  {
+    char *base = obstack_base (&obs);
+    char *new_base;
+    int result;
+    int room = obstack_room (&obs) - 4;
+
+    obstack_blank_fast (&obs, room);
+    result = my_obstack_printf (&obs, "%d %s", 123, "456");
+    ASSERT (result == 7);
+    ASSERT (result + room == obstack_object_size (&obs));
+    obstack_1grow (&obs, 0);
+    new_base = obstack_finish (&obs);
+    ASSERT (base != new_base);
+    ASSERT (strcmp (new_base + room, "123 456") == 0);
+  }
+
+  /* Check that strings shorter than the obstack free space don't
+     cause a reshuffling of the obstack.  */
+  {
+    char *base = obstack_base (&obs);
+    char *new_base;
+    int result;
+    int room = obstack_room (&obs);
+
+    ASSERT (8 < room);
+    result = my_obstack_printf (&obs, "%d %s", 123, "456");
+    ASSERT (result == 7);
+    ASSERT (result == obstack_object_size (&obs));
+    new_base = obstack_base (&obs);
+    ASSERT (base == new_base);
+    ASSERT (strncmp (base, "123 456", result) == 0);
+    obstack_finish (&obs);
+  }
+
+  /* Check for generating much more output than a chunk size.  */
+  {
+    char *base = obstack_base (&obs);
+    char *new_base;
+    int result;
+    int i;
+
+    ASSERT (obstack_chunk_size (&obs) < 10000);
+    result = my_obstack_printf (&obs, "%010000d", 0);
+    ASSERT (result == 10000);
+    ASSERT (result == obstack_object_size (&obs));
+    new_base = obstack_base (&obs);
+    ASSERT (base != new_base);
+    for (i = 0; i < 10000; i++)
+      ASSERT (new_base[i] == '0');
+  }
+
+  obstack_free (&obs, NULL);
+}
+
+static int
+my_obstack_printf (struct obstack *obs, const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = obstack_vprintf (obs, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_obstack_vprintf ()
+{
+  test_function (my_obstack_printf);
+}
+
+static void
+test_obstack_printf ()
+{
+  test_function (obstack_printf);
+}
+
+int
+main (int argc, char *argv[])
+{
+  set_program_name (argv[0]);
+
+  test_obstack_vprintf ();
+  test_obstack_printf ();
+  return 0;
+}
diff --git a/tests/gnu/test-open.c b/tests/gnu/test-open.c
new file mode 100755
index 00000000..ae9b3aca
--- /dev/null
+++ b/tests/gnu/test-open.c
@@ -0,0 +1,41 @@
+/* Test of opening a file descriptor.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <fcntl.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (open, int, (char const *, int, ...));
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+#define BASE "test-open.t"
+
+#include "test-open.h"
+
+int
+main (void)
+{
+  return test_open (open, true);
+}
diff --git a/tests/gnu/test-open.h b/tests/gnu/test-open.h
new file mode 100755
index 00000000..6341a635
--- /dev/null
+++ b/tests/gnu/test-open.h
@@ -0,0 +1,87 @@
+/* Test of opening a file descriptor.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+/* This file is designed to test both open(n,buf[,mode]) and
+   openat(AT_FDCWD,n,buf[,mode]).  FUNC is the function to test.
+   Assumes that BASE and ASSERT are already defined, and that
+   appropriate headers are already included.  If PRINT, warn before
+   skipping symlink tests with status 77.  */
+
+static int
+test_open (int (*func) (char const *, int, ...), bool print)
+{
+  int fd;
+  /* Remove anything from prior partial run.  */
+  unlink (BASE "file");
+
+  /* Cannot create directory.  */
+  errno = 0;
+  ASSERT (func ("nonexist.ent/", O_CREAT | O_RDONLY, 0600) == -1);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == ENOENT
+          || errno == EINVAL);
+
+  /* Create a regular file.  */
+  fd = func (BASE "file", O_CREAT | O_RDONLY, 0600);
+  ASSERT (0 <= fd);
+  ASSERT (close (fd) == 0);
+
+  /* Trailing slash handling.  */
+  errno = 0;
+  ASSERT (func (BASE "file/", O_RDONLY) == -1);
+  ASSERT (errno == ENOTDIR || errno == EISDIR || errno == EINVAL);
+
+  /* Directories cannot be opened for writing.  */
+  errno = 0;
+  ASSERT (func (".", O_WRONLY) == -1);
+  ASSERT (errno == EISDIR || errno == EACCES);
+
+  /* /dev/null must exist, and be writable.  */
+  fd = func ("/dev/null", O_RDONLY);
+  ASSERT (0 <= fd);
+  {
+    char c;
+    ASSERT (read (fd, &c, 1) == 0);
+  }
+  ASSERT (close (fd) == 0);
+  fd = func ("/dev/null", O_WRONLY);
+  ASSERT (0 <= fd);
+  ASSERT (write (fd, "c", 1) == 1);
+  ASSERT (close (fd) == 0);
+
+  /* Symlink handling, where supported.  */
+  if (symlink (BASE "file", BASE "link") != 0)
+    {
+      ASSERT (unlink (BASE "file") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  errno = 0;
+  ASSERT (func (BASE "link/", O_RDONLY) == -1);
+  ASSERT (errno == ENOTDIR);
+  fd = func (BASE "link", O_RDONLY);
+  ASSERT (0 <= fd);
+  ASSERT (close (fd) == 0);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-pipe.c b/tests/gnu/test-pipe.c
new file mode 100755
index 00000000..2dcab58b
--- /dev/null
+++ b/tests/gnu/test-pipe.c
@@ -0,0 +1,204 @@
+/* Test of create_pipe_bidi/wait_subprocess.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+#include "pipe.h"
+#include "wait-process.h"
+
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+/* Depending on arguments, this test intentionally closes stderr or
+   starts life with stderr closed.  So, we arrange to have fd 10
+   (outside the range of interesting fd's during the test) set up to
+   duplicate the original stderr.  */
+
+#define BACKUP_STDERR_FILENO 10
+#define ASSERT_STREAM myerr
+#include "macros.h"
+
+static FILE *myerr;
+
+/* Code executed by the child process.  argv[1] = "child".  */
+static int
+child_main (int argc, char *argv[])
+{
+  char buffer[2] = { 's', 't' };
+  int fd;
+  int ret;
+
+  ASSERT (argc == 3);
+
+  /* Read one byte from fd 0, and write its value plus one to fd 1.
+     fd 2 should be closed iff the argument is 1.  Check that no other file
+     descriptors leaked.  */
+
+  ASSERT (read (STDIN_FILENO, buffer, 2) == 1);
+
+  buffer[0]++;
+  ASSERT (write (STDOUT_FILENO, buffer, 1) == 1);
+
+  errno = 0;
+  ret = dup2 (STDERR_FILENO, STDERR_FILENO);
+  switch (atoi (argv[2]))
+    {
+    case 0:
+      /* Expect fd 2 is open.  */
+      ASSERT (ret == STDERR_FILENO);
+      break;
+    case 1:
+      /* Expect fd 2 is closed.  */
+      ASSERT (ret == -1);
+      ASSERT (errno == EBADF);
+      break;
+    default:
+      ASSERT (false);
+    }
+
+  for (fd = 3; fd < 7; fd++)
+    {
+      errno = 0;
+      ASSERT (close (fd) == -1);
+      ASSERT (errno == EBADF);
+    }
+
+  return 0;
+}
+
+/* Create a bi-directional pipe to a test child, and validate that the
+   child program returns the expected output.  The child is the same
+   program as the parent ARGV0, but with different arguments.
+   STDERR_CLOSED is true if we have already closed fd 2.  */
+static void
+test_pipe (const char *argv0, bool stderr_closed)
+{
+  int fd[2];
+  char *argv[4];
+  pid_t pid;
+  char buffer[2] = { 'a', 't' };
+
+  /* Set up child.  */
+  argv[0] = (char *) argv0;
+  argv[1] = (char *) "child";
+  argv[2] = (char *) (stderr_closed ? "1" : "0");
+  argv[3] = NULL;
+  pid = create_pipe_bidi (argv0, argv0, argv, false, true, true, fd);
+  ASSERT (0 <= pid);
+  ASSERT (STDERR_FILENO < fd[0]);
+  ASSERT (STDERR_FILENO < fd[1]);
+
+  /* Push child's input.  */
+  ASSERT (write (fd[1], buffer, 1) == 1);
+  ASSERT (close (fd[1]) == 0);
+
+  /* Get child's output.  */
+  ASSERT (read (fd[0], buffer, 2) == 1);
+
+  /* Wait for child.  */
+  ASSERT (wait_subprocess (pid, argv0, true, false, true, true, NULL) == 0);
+  ASSERT (close (fd[0]) == 0);
+
+  /* Check the result.  */
+  ASSERT (buffer[0] == 'b');
+  ASSERT (buffer[1] == 't');
+}
+
+/* Code executed by the parent process.  */
+static int
+parent_main (int argc, char *argv[])
+{
+  int test;
+  int fd;
+
+  ASSERT (argc == 2);
+
+  /* Selectively close various standard fds, to verify the child process is
+     not impacted by this.  */
+  test = atoi (argv[1]);
+  switch (test)
+    {
+    case 0:
+      break;
+    case 1:
+      close (0);
+      break;
+    case 2:
+      close (1);
+      break;
+    case 3:
+      close (0);
+      close (1);
+      break;
+    case 4:
+      close (2);
+      break;
+    case 5:
+      close (0);
+      close (2);
+      break;
+    case 6:
+      close (1);
+      close (2);
+      break;
+    case 7:
+      close (0);
+      close (1);
+      close (2);
+      break;
+    default:
+      ASSERT (false);
+    }
+
+  /* Plug any file descriptor leaks inherited from outside world before
+     starting, so that child has a clean slate (at least for the fds that we
+     might be manipulating).  */
+  for (fd = 3; fd < 7; fd++)
+    close (fd);
+
+  test_pipe (argv[0], test >= 4);
+
+  return 0;
+}
+
+int
+main (int argc, char *argv[])
+{
+  if (argc < 2)
+    {
+      fprintf (stderr, "%s: need arguments\n", argv[0]);
+      return 2;
+    }
+  if (strcmp (argv[1], "child") == 0)
+    {
+      /* fd 2 might be closed, but fd BACKUP_STDERR_FILENO is the original
+         stderr.  */
+      myerr = fdopen (BACKUP_STDERR_FILENO, "w");
+      if (!myerr)
+        return 2;
+      return child_main (argc, argv);
+    }
+  /* We might close fd 2 later, so save it in fd 10.  */
+  if (dup2 (STDERR_FILENO, BACKUP_STDERR_FILENO) != BACKUP_STDERR_FILENO
+      || (myerr = fdopen (BACKUP_STDERR_FILENO, "w")) == NULL)
+    return 2;
+  return parent_main (argc, argv);
+}
diff --git a/tests/gnu/test-pipe.sh b/tests/gnu/test-pipe.sh
new file mode 100755
index 00000000..323c90fb
--- /dev/null
+++ b/tests/gnu/test-pipe.sh
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+st=0
+for i in 0 1 2 3 4 5 6 7 ; do
+  ./test-pipe${EXEEXT} $i \
+    || { echo test-pipe.sh: iteration $i failed >&2; st=1; }
+done
+exit $st
diff --git a/tests/gnu/test-pipe2.c b/tests/gnu/test-pipe2.c
new file mode 100755
index 00000000..bd6df7ce
--- /dev/null
+++ b/tests/gnu/test-pipe2.c
@@ -0,0 +1,145 @@
+/* Test of pipe2.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (pipe2, int, (int[2], int));
+
+#include <fcntl.h>
+#include <stdbool.h>
+
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+/* Get declarations of the Win32 API functions.  */
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+#endif
+
+#include "binary-io.h"
+#include "macros.h"
+
+/* Return true if FD is open.  */
+static bool
+is_open (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* On Win32, the initial state of unassigned standard file
+     descriptors is that they are open but point to an
+     INVALID_HANDLE_VALUE, and there is no fcntl.  */
+  return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
+#else
+# ifndef F_GETFL
+#  error Please port fcntl to your platform
+# endif
+  return 0 <= fcntl (fd, F_GETFL);
+#endif
+}
+
+/* Return true if FD is not inherited to child processes.  */
+static bool
+is_cloexec (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  HANDLE h = (HANDLE) _get_osfhandle (fd);
+  DWORD flags;
+  ASSERT (GetHandleInformation (h, &flags));
+  return (flags & HANDLE_FLAG_INHERIT) == 0;
+#else
+  int flags;
+  ASSERT ((flags = fcntl (fd, F_GETFD)) >= 0);
+  return (flags & FD_CLOEXEC) != 0;
+#endif
+}
+
+/* Return true if FD is in non-blocking mode.  */
+static bool
+is_nonblocking (int fd)
+{
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+  /* We don't use the non-blocking mode for sockets here.  */
+  return 0;
+#else
+  int flags;
+  ASSERT ((flags = fcntl (fd, F_GETFL)) >= 0);
+  return (flags & O_NONBLOCK) != 0;
+#endif
+}
+
+int
+main ()
+{
+  int use_nonblocking;
+  int use_cloexec;
+
+#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+  for (use_nonblocking = 0; use_nonblocking <= 1; use_nonblocking++)
+#else
+  use_nonblocking = 0;
+#endif
+#if defined O_CLOEXEC
+    for (use_cloexec = 0; use_cloexec <= 1; use_cloexec++)
+#else
+    use_cloexec = 0;
+#endif
+      {
+        int o_flags;
+        int fd[2];
+
+        o_flags = 0;
+#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
+        if (use_nonblocking)
+          o_flags |= O_NONBLOCK;
+#endif
+#if defined O_CLOEXEC
+        if (use_cloexec)
+          o_flags |= O_CLOEXEC;
+#endif
+
+        fd[0] = -1;
+        fd[1] = -1;
+        ASSERT (pipe2 (fd, o_flags) >= 0);
+        ASSERT (fd[0] >= 0);
+        ASSERT (fd[1] >= 0);
+        ASSERT (fd[0] != fd[1]);
+        ASSERT (is_open (fd[0]) >= 0);
+        ASSERT (is_open (fd[1]) >= 0);
+        if (use_cloexec)
+          {
+            ASSERT (is_cloexec (fd[0]));
+            ASSERT (is_cloexec (fd[1]));
+          }
+        else
+          {
+            ASSERT (!is_cloexec (fd[0]));
+            ASSERT (!is_cloexec (fd[1]));
+          }
+        if (use_nonblocking)
+          {
+            ASSERT (is_nonblocking (fd[0]));
+            ASSERT (is_nonblocking (fd[1]));
+          }
+        else
+          {
+            ASSERT (!is_nonblocking (fd[0]));
+            ASSERT (!is_nonblocking (fd[1]));
+          }
+      }
+
+  return 0;
+}
diff --git a/tests/gnu/test-posix_spawn1.c b/tests/gnu/test-posix_spawn1.c
new file mode 100755
index 00000000..659d76a1
--- /dev/null
+++ b/tests/gnu/test-posix_spawn1.c
@@ -0,0 +1,166 @@
+/* Test of posix_spawn() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <spawn.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (posix_spawnp, int, (pid_t *, char const *,
+                                     posix_spawn_file_actions_t const *,
+                                     posix_spawnattr_t const *,
+                                     char *const[], char *const[]));
+SIGNATURE_CHECK (posix_spawnattr_init, int, (posix_spawnattr_t *));
+SIGNATURE_CHECK (posix_spawnattr_destroy, int, (posix_spawnattr_t *));
+SIGNATURE_CHECK (posix_spawnattr_setsigmask, int, (posix_spawnattr_t *,
+                                                   sigset_t const *));
+SIGNATURE_CHECK (posix_spawnattr_setflags, int, (posix_spawnattr_t *, short));
+SIGNATURE_CHECK (posix_spawn_file_actions_init, int,
+                 (posix_spawn_file_actions_t *));
+SIGNATURE_CHECK (posix_spawn_file_actions_destroy, int,
+                 (posix_spawn_file_actions_t *));
+SIGNATURE_CHECK (posix_spawn_file_actions_addclose, int,
+                 (posix_spawn_file_actions_t *, int));
+SIGNATURE_CHECK (posix_spawn_file_actions_addopen, int,
+                 (posix_spawn_file_actions_t *, int, char const *, int,
+                  mode_t));
+SIGNATURE_CHECK (posix_spawn_file_actions_adddup2, int,
+                 (posix_spawn_file_actions_t *, int, int));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+extern char **environ;
+
+#define CHILD_PROGRAM_FILENAME "test-posix_spawn1.sh"
+
+static int
+fd_safer (int fd)
+{
+  if (0 <= fd && fd <= 2)
+    {
+      int f = fd_safer (dup (fd));
+      int e = errno;
+      close (fd);
+      errno = e;
+      fd = f;
+    }
+
+  return fd;
+}
+
+int
+main ()
+{
+  char *argv[3] = { "/bin/sh", CHILD_PROGRAM_FILENAME, NULL };
+  int ifd[2];
+  sigset_t blocked_signals;
+  sigset_t fatal_signal_set;
+  posix_spawn_file_actions_t actions;
+  bool actions_allocated;
+  posix_spawnattr_t attrs;
+  bool attrs_allocated;
+  int err;
+  pid_t child;
+  int fd;
+  FILE *fp;
+  char line[80];
+  int status;
+  int exitstatus;
+
+  if (pipe (ifd) < 0 || (ifd[0] = fd_safer (ifd[0])) < 0)
+    {
+      perror ("cannot create pipe");
+      exit (1);
+    }
+  sigprocmask (SIG_SETMASK, NULL, &blocked_signals);
+  sigemptyset (&fatal_signal_set);
+  sigaddset (&fatal_signal_set, SIGINT);
+  sigaddset (&fatal_signal_set, SIGTERM);
+  sigaddset (&fatal_signal_set, SIGHUP);
+  sigaddset (&fatal_signal_set, SIGPIPE);
+  sigprocmask (SIG_BLOCK, &fatal_signal_set, NULL);
+  actions_allocated = false;
+  attrs_allocated = false;
+  if ((err = posix_spawn_file_actions_init (&actions)) != 0
+      || (actions_allocated = true,
+          (err = posix_spawn_file_actions_adddup2 (&actions, ifd[1], STDOUT_FILENO)) != 0
+          || (err = posix_spawn_file_actions_addclose (&actions, ifd[1])) != 0
+          || (err = posix_spawn_file_actions_addclose (&actions, ifd[0])) != 0
+          || (err = posix_spawn_file_actions_addopen (&actions, STDIN_FILENO, "/dev/null", O_RDONLY, 0)) != 0
+          || (err = posix_spawnattr_init (&attrs)) != 0
+          || (attrs_allocated = true,
+              (err = posix_spawnattr_setsigmask (&attrs, &blocked_signals)) != 0
+              || (err = posix_spawnattr_setflags (&attrs, POSIX_SPAWN_SETSIGMASK)) != 0)
+          || (err = posix_spawnp (&child, "/bin/sh", &actions, &attrs, argv, environ)) != 0))
+    {
+      if (actions_allocated)
+        posix_spawn_file_actions_destroy (&actions);
+      if (attrs_allocated)
+        posix_spawnattr_destroy (&attrs);
+      sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL);
+      errno = err;
+      perror ("subprocess failed");
+      exit (1);
+    }
+  posix_spawn_file_actions_destroy (&actions);
+  posix_spawnattr_destroy (&attrs);
+  sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL);
+  close (ifd[1]);
+  fd = ifd[0];
+  fp = fdopen (fd, "r");
+  if (fp == NULL)
+    {
+      fprintf (stderr, "fdopen() failed\n");
+      exit (1);
+    }
+  if (fread (line, 1, 80, fp) < 12)
+    {
+      fprintf (stderr, "could not read expected output\n");
+      exit (1);
+    }
+  if (memcmp (line, "Halle Potta", 11) != 0)
+    {
+      fprintf (stderr, "read output is not the expected output");
+      exit (1);
+    }
+  fclose (fp);
+  status = 0;
+  while (waitpid (child, &status, 0) != child)
+    ;
+  if (!WIFEXITED (status))
+    {
+      fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status);
+      exit (1);
+    }
+  exitstatus = WEXITSTATUS (status);
+  if (exitstatus != 0)
+    {
+      fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus);
+      exit (1);
+    }
+  return 0;
+}
diff --git a/tests/gnu/test-posix_spawn1.in.sh b/tests/gnu/test-posix_spawn1.in.sh
new file mode 100755
index 00000000..b370856d
--- /dev/null
+++ b/tests/gnu/test-posix_spawn1.in.sh
@@ -0,0 +1,2 @@
+#!/bin/sh
+echo "Halle Potta"
diff --git a/tests/gnu/test-posix_spawn2.c b/tests/gnu/test-posix_spawn2.c
new file mode 100755
index 00000000..d76c25c4
--- /dev/null
+++ b/tests/gnu/test-posix_spawn2.c
@@ -0,0 +1,139 @@
+/* Test of posix_spawn() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <spawn.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+extern char **environ;
+
+#define CHILD_PROGRAM_FILENAME "test-posix_spawn2.sh"
+
+static int
+fd_safer (int fd)
+{
+  if (0 <= fd && fd <= 2)
+    {
+      int f = fd_safer (dup (fd));
+      int e = errno;
+      close (fd);
+      errno = e;
+      fd = f;
+    }
+
+  return fd;
+}
+
+int
+main ()
+{
+  char *argv[3] = { "/bin/sh", CHILD_PROGRAM_FILENAME, NULL };
+  int ofd[2];
+  sigset_t blocked_signals;
+  sigset_t fatal_signal_set;
+  posix_spawn_file_actions_t actions;
+  bool actions_allocated;
+  posix_spawnattr_t attrs;
+  bool attrs_allocated;
+  int err;
+  pid_t child;
+  int fd;
+  FILE *fp;
+  int written;
+  int status;
+  int exitstatus;
+
+  if (pipe (ofd) < 0 || (ofd[1] = fd_safer (ofd[1])) < 0)
+    {
+      perror ("cannot create pipe");
+      exit (1);
+    }
+  sigprocmask (SIG_SETMASK, NULL, &blocked_signals);
+  sigemptyset (&fatal_signal_set);
+  sigaddset (&fatal_signal_set, SIGINT);
+  sigaddset (&fatal_signal_set, SIGTERM);
+  sigaddset (&fatal_signal_set, SIGHUP);
+  sigaddset (&fatal_signal_set, SIGPIPE);
+  sigprocmask (SIG_BLOCK, &fatal_signal_set, NULL);
+  actions_allocated = false;
+  attrs_allocated = false;
+  if ((err = posix_spawn_file_actions_init (&actions)) != 0
+      || (actions_allocated = true,
+          (err = posix_spawn_file_actions_adddup2 (&actions, ofd[0], STDIN_FILENO)) != 0
+          || (err = posix_spawn_file_actions_addclose (&actions, ofd[0])) != 0
+          || (err = posix_spawn_file_actions_addclose (&actions, ofd[1])) != 0
+          || (err = posix_spawnattr_init (&attrs)) != 0
+          || (attrs_allocated = true,
+              (err = posix_spawnattr_setsigmask (&attrs, &blocked_signals)) != 0
+              || (err = posix_spawnattr_setflags (&attrs, POSIX_SPAWN_SETSIGMASK)) != 0)
+          || (err = posix_spawnp (&child, "/bin/sh", &actions, &attrs, argv, environ)) != 0))
+    {
+      if (actions_allocated)
+        posix_spawn_file_actions_destroy (&actions);
+      if (attrs_allocated)
+        posix_spawnattr_destroy (&attrs);
+      sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL);
+      errno = err;
+      perror ("subprocess failed");
+      exit (1);
+    }
+  posix_spawn_file_actions_destroy (&actions);
+  posix_spawnattr_destroy (&attrs);
+  sigprocmask (SIG_UNBLOCK, &fatal_signal_set, NULL);
+  close (ofd[0]);
+  fd = ofd[1];
+  fp = fdopen (fd, "w");
+  if (fp == NULL)
+    {
+      fprintf (stderr, "fdopen() failed\n");
+      exit (1);
+    }
+  written = fwrite ("Halle Potta\n", 1, 12, fp);
+  if (written < 12)
+    {
+      fprintf (stderr, "could not write input\n");
+      exit (1);
+    }
+  fclose (fp);
+  status = 0;
+  while (waitpid (child, &status, 0) != child)
+    ;
+  if (!WIFEXITED (status))
+    {
+      fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status);
+      exit (1);
+    }
+  exitstatus = WEXITSTATUS (status);
+  if (exitstatus != 0)
+    {
+      fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus);
+      exit (1);
+    }
+  return 0;
+}
diff --git a/tests/gnu/test-posix_spawn2.in.sh b/tests/gnu/test-posix_spawn2.in.sh
new file mode 100755
index 00000000..29a9b28f
--- /dev/null
+++ b/tests/gnu/test-posix_spawn2.in.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+read line
+test "$line" = "Halle Potta"
diff --git a/tests/gnu/test-printf-frexp.c b/tests/gnu/test-printf-frexp.c
new file mode 100755
index 00000000..13e1c30e
--- /dev/null
+++ b/tests/gnu/test-printf-frexp.c
@@ -0,0 +1,119 @@
+/* Test of splitting a double into fraction and mantissa.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "printf-frexp.h"
+
+#include <float.h>
+
+#include "macros.h"
+
+static double
+my_ldexp (double x, int d)
+{
+  for (; d > 0; d--)
+    x *= 2.0;
+  for (; d < 0; d++)
+    x *= 0.5;
+  return x;
+}
+
+int
+main ()
+{
+  int i;
+  /* The use of 'volatile' guarantees that excess precision bits are dropped
+     when dealing with denormalized numbers.  It is necessary on x86 systems
+     where double-floats are not IEEE compliant by default, to avoid that the
+     results become platform and compiler option dependent.  'volatile' is a
+     portable alternative to gcc's -ffloat-store option.  */
+  volatile double x;
+
+  for (i = 1, x = 1.0; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.0);
+    }
+  for (i = 1, x = 1.0; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.0);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == DBL_MIN_EXP - 1);
+      ASSERT (mantissa == my_ldexp (1.0, i - DBL_MIN_EXP));
+    }
+
+  for (i = 1, x = 1.01; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.01);
+    }
+  for (i = 1, x = 1.01; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.01);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == DBL_MIN_EXP - 1);
+      ASSERT (mantissa >= my_ldexp (1.0, i - DBL_MIN_EXP));
+      ASSERT (mantissa <= my_ldexp (2.0, i - DBL_MIN_EXP));
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  for (i = 1, x = 1.73205; i <= DBL_MAX_EXP; i++, x *= 2.0)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.73205);
+    }
+  for (i = 1, x = 1.73205; i >= DBL_MIN_EXP; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.73205);
+    }
+  for (; i >= DBL_MIN_EXP - 100 && x > 0.0; i--, x *= 0.5)
+    {
+      int exp = -9999;
+      double mantissa = printf_frexp (x, &exp);
+      ASSERT (exp == DBL_MIN_EXP - 1);
+      ASSERT (mantissa >= my_ldexp (1.0, i - DBL_MIN_EXP));
+      ASSERT (mantissa <= my_ldexp (2.0, i - DBL_MIN_EXP));
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-printf-frexpl.c b/tests/gnu/test-printf-frexpl.c
new file mode 100755
index 00000000..6f7e4f7e
--- /dev/null
+++ b/tests/gnu/test-printf-frexpl.c
@@ -0,0 +1,134 @@
+/* Test of splitting a 'long double' into fraction and mantissa.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "printf-frexpl.h"
+
+#include <float.h>
+
+#include "fpucw.h"
+#include "macros.h"
+
+/* On MIPS IRIX machines, LDBL_MIN_EXP is -1021, but the smallest reliable
+   exponent for 'long double' is -964.  Similarly, on PowerPC machines,
+   LDBL_MIN_EXP is -1021, but the smallest reliable exponent for 'long double'
+   is -968.  For exponents below that, the precision may be truncated to the
+   precision used for 'double'.  */
+#ifdef __sgi
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 57)
+# define MIN_SUBNORMAL_EXP MIN_NORMAL_EXP
+#elif defined __ppc || defined __ppc__ || defined __powerpc || defined __powerpc__
+# define MIN_NORMAL_EXP (LDBL_MIN_EXP + 53)
+# define MIN_SUBNORMAL_EXP MIN_NORMAL_EXP
+#else
+# define MIN_NORMAL_EXP LDBL_MIN_EXP
+# define MIN_SUBNORMAL_EXP (LDBL_MIN_EXP - 100)
+#endif
+
+static long double
+my_ldexp (long double x, int d)
+{
+  for (; d > 0; d--)
+    x *= 2.0L;
+  for (; d < 0; d++)
+    x *= 0.5L;
+  return x;
+}
+
+int
+main ()
+{
+  int i;
+  long double x;
+  DECL_LONG_DOUBLE_ROUNDING
+
+  BEGIN_LONG_DOUBLE_ROUNDING ();
+
+  for (i = 1, x = 1.0L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.0L);
+    }
+  for (i = 1, x = 1.0L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.0L);
+    }
+  for (; i >= MIN_SUBNORMAL_EXP && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == LDBL_MIN_EXP - 1);
+      ASSERT (mantissa == my_ldexp (1.0L, i - LDBL_MIN_EXP));
+    }
+
+  for (i = 1, x = 1.01L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.01L);
+    }
+  for (i = 1, x = 1.01L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.01L);
+    }
+  for (; i >= MIN_SUBNORMAL_EXP && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == LDBL_MIN_EXP - 1);
+      ASSERT (mantissa >= my_ldexp (1.0L, i - LDBL_MIN_EXP));
+      ASSERT (mantissa <= my_ldexp (2.0L, i - LDBL_MIN_EXP));
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  for (i = 1, x = 1.73205L; i <= LDBL_MAX_EXP; i++, x *= 2.0L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.73205L);
+    }
+  for (i = 1, x = 1.73205L; i >= MIN_NORMAL_EXP; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == i - 1);
+      ASSERT (mantissa == 1.73205L);
+    }
+  for (; i >= MIN_SUBNORMAL_EXP && x > 0.0L; i--, x *= 0.5L)
+    {
+      int exp = -9999;
+      long double mantissa = printf_frexpl (x, &exp);
+      ASSERT (exp == LDBL_MIN_EXP - 1);
+      ASSERT (mantissa >= my_ldexp (1.0L, i - LDBL_MIN_EXP));
+      ASSERT (mantissa <= my_ldexp (2.0L, i - LDBL_MIN_EXP));
+      ASSERT (mantissa == my_ldexp (x, - exp));
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-printf-posix.h b/tests/gnu/test-printf-posix.h
new file mode 100755
index 00000000..32e6468f
--- /dev/null
+++ b/tests/gnu/test-printf-posix.h
@@ -0,0 +1,153 @@
+/* Test of POSIX compatible vsprintf() and sprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+static void
+test_function (int (*my_printf) (const char *, ...))
+{
+  /* Here we don't test output that may be platform dependent.
+     The bulk of the tests is done as part of the 'vasnprintf-posix' module.  */
+
+  /* Test support of size specifiers as in C99.  */
+
+  my_printf ("%ju %d\n", (uintmax_t) 12345671, 33, 44, 55);
+
+  my_printf ("%zu %d\n", (size_t) 12345672, 33, 44, 55);
+
+  my_printf ("%tu %d\n", (ptrdiff_t) 12345673, 33, 44, 55);
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  /* Positive zero.  */
+  my_printf ("%a %d\n", 0.0, 33, 44, 55);
+
+  /* Positive infinity.  */
+  my_printf ("%a %d\n", 1.0 / 0.0, 33, 44, 55);
+
+  /* Negative infinity.  */
+  my_printf ("%a %d\n", -1.0 / 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO with infinite number.  */
+  /* "0000000inf 33" is not a valid result; see
+     <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+  my_printf ("%010a %d\n", 1.0 / 0.0, 33, 44, 55);
+
+  /* Test the support of the %f format directive.  */
+
+  /* A positive number.  */
+  my_printf ("%f %d\n", 12.75, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_printf ("%f %d\n", 1234567.0, 33, 44, 55);
+
+  /* A negative number.  */
+  my_printf ("%f %d\n", -0.03125, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_printf ("%f %d\n", 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_printf ("%015f %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision.  */
+  my_printf ("%.f %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_printf ("%.2f %d\n", 999.95, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_printf ("%.2f %d\n", 999.996, 33, 44, 55);
+
+  /* A positive number.  */
+  my_printf ("%Lf %d\n", 12.75L, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_printf ("%Lf %d\n", 1234567.0L, 33, 44, 55);
+
+  /* A negative number.  */
+  my_printf ("%Lf %d\n", -0.03125L, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_printf ("%Lf %d\n", 0.0L, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_printf ("%015Lf %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision.  */
+  my_printf ("%.Lf %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_printf ("%.2Lf %d\n", 999.95L, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_printf ("%.2Lf %d\n", 999.996L, 33, 44, 55);
+
+  /* Test the support of the %F format directive.  */
+
+  /* A positive number.  */
+  my_printf ("%F %d\n", 12.75, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_printf ("%F %d\n", 1234567.0, 33, 44, 55);
+
+  /* A negative number.  */
+  my_printf ("%F %d\n", -0.03125, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_printf ("%F %d\n", 0.0, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_printf ("%015F %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision.  */
+  my_printf ("%.F %d\n", 1234.0, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_printf ("%.2F %d\n", 999.95, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_printf ("%.2F %d\n", 999.996, 33, 44, 55);
+
+  /* A positive number.  */
+  my_printf ("%LF %d\n", 12.75L, 33, 44, 55);
+
+  /* A larger positive number.  */
+  my_printf ("%LF %d\n", 1234567.0L, 33, 44, 55);
+
+  /* A negative number.  */
+  my_printf ("%LF %d\n", -0.03125L, 33, 44, 55);
+
+  /* Positive zero.  */
+  my_printf ("%LF %d\n", 0.0L, 33, 44, 55);
+
+  /* FLAG_ZERO.  */
+  my_printf ("%015LF %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision.  */
+  my_printf ("%.LF %d\n", 1234.0L, 33, 44, 55);
+
+  /* Precision with no rounding.  */
+  my_printf ("%.2LF %d\n", 999.95L, 33, 44, 55);
+
+  /* Precision with rounding.  */
+  my_printf ("%.2LF %d\n", 999.996L, 33, 44, 55);
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  my_printf ("%2$d %1$d\n", 33, 55);
+}
diff --git a/tests/gnu/test-printf-posix.output b/tests/gnu/test-printf-posix.output
new file mode 100755
index 00000000..618825bb
--- /dev/null
+++ b/tests/gnu/test-printf-posix.output
@@ -0,0 +1,40 @@
+12345671 33
+12345672 33
+12345673 33
+0x0p+0 33
+inf 33
+-inf 33
+       inf 33
+12.750000 33
+1234567.000000 33
+-0.031250 33
+0.000000 33
+00001234.000000 33
+1234 33
+999.95 33
+1000.00 33
+12.750000 33
+1234567.000000 33
+-0.031250 33
+0.000000 33
+00001234.000000 33
+1234 33
+999.95 33
+1000.00 33
+12.750000 33
+1234567.000000 33
+-0.031250 33
+0.000000 33
+00001234.000000 33
+1234 33
+999.95 33
+1000.00 33
+12.750000 33
+1234567.000000 33
+-0.031250 33
+0.000000 33
+00001234.000000 33
+1234 33
+999.95 33
+1000.00 33
+55 33
diff --git a/tests/gnu/test-quotearg.c b/tests/gnu/test-quotearg.c
new file mode 100755
index 00000000..1928679f
--- /dev/null
+++ b/tests/gnu/test-quotearg.c
@@ -0,0 +1,471 @@
+/* Test of quotearg family of functions.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2008.  */
+
+#include <config.h>
+
+#include "quotearg.h"
+
+#include <ctype.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "progname.h"
+#include "gettext.h"
+#include "macros.h"
+
+struct result_strings {
+  char const *str1; /* Translation of "".  */
+  char const *str2; /* Translation of "\0""1\0".  */
+  size_t len2; /* Length of str2.  */
+  char const *str3; /* Translation of "simple".  */
+  char const *str4; /* Translation of " \t\n'\"\033?""?/\\".  */
+  char const *str5; /* Translation of "a:b".  */
+  char const *str6; /* Translation of "a\\b".  */
+  char const *str7a; /* Translation of LQ RQ, in ASCII charset.  */
+  char const *str7b; /* Translation of LQ RQ, in Latin1 or UTF-8 charset.  */
+};
+
+struct result_groups {
+  struct result_strings group1; /* Via quotearg_buffer.  */
+  struct result_strings group2; /* Via quotearg{,_mem}.  */
+  struct result_strings group3; /* Via quotearg_colon{,_mem}.  */
+};
+
+/* These quotes are borrowed from a pt_PT.utf8 translation.  */
+# define LQ "\302\253"
+# define RQ "\302\273"
+# define LQ_ENC "\\302\\253"
+# define RQ_ENC "\\302\\273"
+# define RQ_ESC "\\\302\273"
+
+static struct result_strings inputs = {
+  "", "\0001\0", 3, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
+  LQ RQ, NULL
+};
+
+static struct result_groups results_g[] = {
+  /* literal_quoting_style */
+  { { "", "\0""1\0", 3, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
+      LQ RQ, LQ RQ },
+    { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
+      LQ RQ, LQ RQ },
+    { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b",
+      LQ RQ, LQ RQ } },
+
+  /* shell_quoting_style */
+  { { "''", "\0""1\0", 3, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
+      "'a\\b'", LQ RQ, LQ RQ },
+    { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "a:b",
+      "'a\\b'", LQ RQ, LQ RQ },
+    { "''", "1", 1, "simple", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
+      "'a\\b'", LQ RQ, LQ RQ } },
+
+  /* shell_always_quoting_style */
+  { { "''", "'\0""1\0'", 5, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
+      "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" },
+    { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
+      "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" },
+    { "''", "'1'", 3, "'simple'", "' \t\n'\\''\"\033?""?/\\'", "'a:b'",
+      "'a\\b'", "'" LQ RQ "'", "'" LQ RQ "'" } },
+
+  /* c_quoting_style */
+  { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } },
+
+  /* c_maybe_quoting_style */
+  { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
+    { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
+    { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "\"a:b\"", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
+
+  /* escape_quoting_style */
+  { { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
+      "a\\\\b", LQ_ENC RQ_ENC, LQ RQ },
+    { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a:b",
+      "a\\\\b", LQ_ENC RQ_ENC, LQ RQ },
+    { "", "\\0001\\0", 7, "simple", " \\t\\n'\"\\033?""?/\\\\", "a\\:b",
+      "a\\\\b", LQ_ENC RQ_ENC, LQ RQ } },
+
+  /* locale_quoting_style */
+  { { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
+      "`a:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" },
+    { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
+      "`a:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" },
+    { "`'", "`\\0001\\0'", 9, "`simple'", "` \\t\\n\\'\"\\033?""?/\\\\'",
+      "`a\\:b'", "`a\\\\b'", "`" LQ_ENC RQ_ENC "'", "`" LQ RQ "'" } },
+
+  /* clocale_quoting_style */
+  { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?""?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
+};
+
+static struct result_groups flag_results[] = {
+  /* literal_quoting_style and QA_ELIDE_NULL_BYTES */
+  { { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
+      LQ RQ },
+    { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
+      LQ RQ },
+    { "", "1", 1, "simple", " \t\n'\"\033?""?/\\", "a:b", "a\\b", LQ RQ,
+      LQ RQ } },
+
+  /* c_quoting_style and QA_ELIDE_OUTER_QUOTES */
+  { { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
+    { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "a:b", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ },
+    { "", "\"\\0001\\0\"", 9, "simple", "\" \\t\\n'\\\"\\033?""?/\\\\\"",
+      "\"a:b\"", "a\\b", "\"" LQ_ENC RQ_ENC "\"", LQ RQ } },
+
+  /* c_quoting_style and QA_SPLIT_TRIGRAPHS */
+  { { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" },
+    { "\"\"", "\"\\0001\\0\"", 9, "\"simple\"",
+      "\" \\t\\n'\\\"\\033?\"\"?/\\\\\"", "\"a\\:b\"", "\"a\\\\b\"",
+      "\"" LQ_ENC RQ_ENC "\"", "\"" LQ RQ "\"" } }
+};
+
+#if ENABLE_NLS
+
+static struct result_groups locale_results[] = {
+  /* locale_quoting_style */
+  { { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
+    { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ},
+    { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a\\:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ } },
+
+  /* clocale_quoting_style */
+  { { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
+    { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ },
+    { LQ RQ, LQ "\\0001\\0" RQ, 11, LQ "simple" RQ,
+      LQ " \\t\\n'\"\\033?""?/\\\\" RQ, LQ "a\\:b" RQ, LQ "a\\\\b" RQ,
+      LQ LQ RQ_ESC RQ, LQ LQ RQ_ESC RQ } }
+};
+
+#endif /* ENABLE_NLS */
+
+static char const *custom_quotes[][2] = {
+  { "", ""  },
+  { "'", "'"  },
+  { "(", ")"  },
+  { ":", " "  },
+  { " ", ":"  },
+  { "# ", "\n" },
+  { "\"'", "'\"" }
+};
+
+static struct result_groups custom_results[] = {
+  /* left_quote = right_quote = "" */
+  { { "", "\\0001\\0", 7, "simple",
+      " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
+      LQ_ENC RQ_ENC, LQ RQ },
+    { "", "\\0001\\0", 7, "simple",
+      " \\t\\n'\"\\033?""?/\\\\", "a:b", "a\\\\b",
+      LQ_ENC RQ_ENC, LQ RQ },
+    { "", "\\0001\\0", 7, "simple",
+      " \\t\\n'\"\\033?""?/\\\\", "a\\:b", "a\\\\b",
+      LQ_ENC RQ_ENC, LQ RQ } },
+
+  /* left_quote = right_quote = "'" */
+  { { "''", "'\\0001\\0'", 9, "'simple'",
+      "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
+      "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
+    { "''", "'\\0001\\0'", 9, "'simple'",
+      "' \\t\\n\\'\"\\033?""?/\\\\'", "'a:b'", "'a\\\\b'",
+      "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" },
+    { "''", "'\\0001\\0'", 9, "'simple'",
+      "' \\t\\n\\'\"\\033?""?/\\\\'", "'a\\:b'", "'a\\\\b'",
+      "'" LQ_ENC RQ_ENC "'", "'" LQ RQ "'" } },
+
+  /* left_quote = "(" and right_quote = ")" */
+  { { "()", "(\\0001\\0)", 9, "(simple)",
+      "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
+      "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
+    { "()", "(\\0001\\0)", 9, "(simple)",
+      "( \\t\\n'\"\\033?""?/\\\\)", "(a:b)", "(a\\\\b)",
+      "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" },
+    { "()", "(\\0001\\0)", 9, "(simple)",
+      "( \\t\\n'\"\\033?""?/\\\\)", "(a\\:b)", "(a\\\\b)",
+      "(" LQ_ENC RQ_ENC ")", "(" LQ RQ ")" } },
+
+  /* left_quote = ":" and right_quote = " " */
+  { { ": ", ":\\0001\\0 ", 9, ":simple ",
+      ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
+      ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
+    { ": ", ":\\0001\\0 ", 9, ":simple ",
+      ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a:b ", ":a\\\\b ",
+      ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " },
+    { ": ", ":\\0001\\0 ", 9, ":simple ",
+      ":\\ \\t\\n'\"\\033?""?/\\\\ ", ":a\\:b ", ":a\\\\b ",
+      ":" LQ_ENC RQ_ENC " ", ":" LQ RQ " " } },
+
+  /* left_quote = " " and right_quote = ":" */
+  { { " :", " \\0001\\0:", 9, " simple:",
+      "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
+      " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
+    { " :", " \\0001\\0:", 9, " simple:",
+      "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
+      " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" },
+    { " :", " \\0001\\0:", 9, " simple:",
+      "  \\t\\n'\"\\033?""?/\\\\:", " a\\:b:", " a\\\\b:",
+      " " LQ_ENC RQ_ENC ":", " " LQ RQ ":" } },
+
+  /* left_quote = "# " and right_quote = "\n" */
+  { { "# \n", "# \\0001\\0\n", 10, "# simple\n",
+      "#  \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
+      "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
+    { "# \n", "# \\0001\\0\n", 10, "# simple\n",
+      "#  \\t\\n'\"\\033?""?/\\\\\n", "# a:b\n", "# a\\\\b\n",
+      "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" },
+    { "# \n", "# \\0001\\0\n", 10, "# simple\n",
+      "#  \\t\\n'\"\\033?""?/\\\\\n", "# a\\:b\n", "# a\\\\b\n",
+      "# " LQ_ENC RQ_ENC "\n", "# " LQ RQ "\n" } },
+
+  /* left_quote = "\"'" and right_quote = "'\"" */
+  { { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
+      "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
+      "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
+    { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
+      "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a:b'\"", "\"'a\\\\b'\"",
+      "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" },
+    { "\"''\"", "\"'\\0001\\0'\"", 11, "\"'simple'\"",
+      "\"' \\t\\n\\'\"\\033?""?/\\\\'\"", "\"'a\\:b'\"", "\"'a\\\\b'\"",
+      "\"'" LQ_ENC RQ_ENC "'\"", "\"'" LQ RQ "'\"" } }
+};
+
+static void
+compare (char const *a, size_t la, char const *b, size_t lb)
+{
+  ASSERT (la == lb);
+  ASSERT (memcmp (a, b, la) == 0);
+  ASSERT (b[lb] == '\0');
+}
+
+static void
+compare_strings (char *(func) (char const *, size_t *),
+                 struct result_strings *results, bool ascii_only)
+{
+  size_t len;
+  char *p;
+
+  len = 0;
+  p = func (inputs.str1, &len);
+  compare (results->str1, strlen (results->str1), p, len);
+
+  len = inputs.len2;
+  p = func (inputs.str2, &len);
+  compare (results->str2, results->len2, p, len);
+
+  len = SIZE_MAX;
+  p = func (inputs.str3, &len);
+  compare (results->str3, strlen (results->str3), p, len);
+
+  len = strlen (inputs.str4);
+  p = func (inputs.str4, &len);
+  compare (results->str4, strlen (results->str4), p, len);
+
+  len = SIZE_MAX;
+  p = func (inputs.str5, &len);
+  compare (results->str5, strlen (results->str5), p, len);
+
+  len = strlen (inputs.str6);
+  p = func (inputs.str6, &len);
+  compare (results->str6, strlen (results->str6), p, len);
+
+  len = strlen (inputs.str7a);
+  p = func (inputs.str7a, &len);
+  if (ascii_only)
+    compare (results->str7a, strlen (results->str7a), p, len);
+  else
+    compare (results->str7b, strlen (results->str7b), p, len);
+}
+
+static char *
+use_quotearg_buffer (const char *str, size_t *len)
+{
+  static char buf[100];
+  size_t size;
+  memset (buf, 0xa5, 100);
+  size = quotearg_buffer (buf, 100, str, *len, NULL);
+  *len = size;
+  ASSERT ((unsigned char) buf[size + 1] == 0xa5);
+  return buf;
+}
+
+static char *
+use_quotearg (const char *str, size_t *len)
+{
+  char *p = *len == SIZE_MAX ? quotearg (str) : quotearg_mem (str, *len);
+  *len = strlen (p);
+  return p;
+}
+
+static char *
+use_quote_double_quotes (const char *str, size_t *len)
+{
+  char *p = *len == SIZE_MAX ? quotearg_char (str, '"')
+                               : quotearg_char_mem (str, *len, '"');
+  *len = strlen (p);
+  return p;
+}
+
+static char *
+use_quotearg_colon (const char *str, size_t *len)
+{
+  char *p = (*len == SIZE_MAX ? quotearg_colon (str)
+             : quotearg_colon_mem (str, *len));
+  *len = strlen (p);
+  return p;
+}
+
+int
+main (int argc _GL_UNUSED, char *argv[])
+{
+  int i;
+  bool ascii_only = MB_CUR_MAX == 1 && !isprint ((unsigned char) LQ[0]);
+
+  set_program_name (argv[0]);
+
+  /* This part of the program is hard-wired to the C locale since it
+     does not call setlocale.  However, according to POSIX, the use of
+     8-bit bytes in a character context in the C locale gives
+     unspecified results (that is, the C locale charset is allowed to
+     be unibyte with 8-bit bytes rejected [ASCII], unibyte with 8-bit
+     bytes being characters [often ISO-8859-1], or multibyte [often
+     UTF-8]).  We assume that the latter two cases will be
+     indistinguishable in this test - that is, the LQ and RQ sequences
+     will pass through unchanged in either type of charset.  So when
+     testing for quoting of str7, use the ascii_only flag to decide
+     what to expect for the 8-bit data being quoted.  */
+  ASSERT (!isprint ('\033'));
+  for (i = literal_quoting_style; i <= clocale_quoting_style; i++)
+    {
+      set_quoting_style (NULL, i);
+      compare_strings (use_quotearg_buffer, &results_g[i].group1, ascii_only);
+      compare_strings (use_quotearg, &results_g[i].group2, ascii_only);
+      if (i == c_quoting_style)
+        compare_strings (use_quote_double_quotes, &results_g[i].group2,
+                         ascii_only);
+      compare_strings (use_quotearg_colon, &results_g[i].group3, ascii_only);
+    }
+
+  set_quoting_style (NULL, literal_quoting_style);
+  ASSERT (set_quoting_flags (NULL, QA_ELIDE_NULL_BYTES) == 0);
+  compare_strings (use_quotearg_buffer, &flag_results[0].group1, ascii_only);
+  compare_strings (use_quotearg, &flag_results[0].group2, ascii_only);
+  compare_strings (use_quotearg_colon, &flag_results[0].group3, ascii_only);
+
+  set_quoting_style (NULL, c_quoting_style);
+  ASSERT (set_quoting_flags (NULL, QA_ELIDE_OUTER_QUOTES)
+          == QA_ELIDE_NULL_BYTES);
+  compare_strings (use_quotearg_buffer, &flag_results[1].group1, ascii_only);
+  compare_strings (use_quotearg, &flag_results[1].group2, ascii_only);
+  compare_strings (use_quote_double_quotes, &flag_results[1].group2,
+                   ascii_only);
+  compare_strings (use_quotearg_colon, &flag_results[1].group3, ascii_only);
+
+  ASSERT (set_quoting_flags (NULL, QA_SPLIT_TRIGRAPHS)
+          == QA_ELIDE_OUTER_QUOTES);
+  compare_strings (use_quotearg_buffer, &flag_results[2].group1, ascii_only);
+  compare_strings (use_quotearg, &flag_results[2].group2, ascii_only);
+  compare_strings (use_quote_double_quotes, &flag_results[2].group2,
+                   ascii_only);
+  compare_strings (use_quotearg_colon, &flag_results[2].group3, ascii_only);
+
+  ASSERT (set_quoting_flags (NULL, 0) == QA_SPLIT_TRIGRAPHS);
+
+  for (i = 0; i < sizeof custom_quotes / sizeof *custom_quotes; ++i)
+    {
+      set_custom_quoting (NULL,
+                          custom_quotes[i][0], custom_quotes[i][1]);
+      compare_strings (use_quotearg_buffer, &custom_results[i].group1,
+                       ascii_only);
+      compare_strings (use_quotearg, &custom_results[i].group2, ascii_only);
+      compare_strings (use_quotearg_colon, &custom_results[i].group3,
+                       ascii_only);
+    }
+
+#if ENABLE_NLS
+  /* Clean up environment.  */
+  unsetenv ("LANGUAGE");
+  unsetenv ("LC_ALL");
+  unsetenv ("LC_MESSAGES");
+  unsetenv ("LC_CTYPE");
+  unsetenv ("LANG");
+  unsetenv ("OUTPUT_CHARSET");
+
+  /* This program part runs in a French UTF-8 locale.  It uses
+     the test-quotearg.mo message catalog.  */
+  {
+    const char *locale_name = getenv ("LOCALE");
+
+    if (locale_name != NULL && strcmp (locale_name, "none") != 0
+        && setenv ("LC_ALL", locale_name, 1) == 0
+        && setlocale (LC_ALL, "") != NULL)
+      {
+        textdomain ("test-quotearg");
+        bindtextdomain ("test-quotearg", getenv ("LOCALEDIR"));
+
+        set_quoting_style (NULL, locale_quoting_style);
+        compare_strings (use_quotearg_buffer, &locale_results[0].group1, false);
+        compare_strings (use_quotearg, &locale_results[0].group2, false);
+        compare_strings (use_quotearg_colon, &locale_results[0].group3, false);
+
+        set_quoting_style (NULL, clocale_quoting_style);
+        compare_strings (use_quotearg_buffer, &locale_results[1].group1, false);
+        compare_strings (use_quotearg, &locale_results[1].group2, false);
+        compare_strings (use_quotearg_colon, &locale_results[1].group3, false);
+      }
+  }
+#endif /* ENABLE_NLS */
+
+  quotearg_free ();
+  return 0;
+}
diff --git a/tests/gnu/test-quotearg.sh b/tests/gnu/test-quotearg.sh
new file mode 100755
index 00000000..e050d078
--- /dev/null
+++ b/tests/gnu/test-quotearg.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+# Choose an existing locale. The locale encoding does not matter; see the
+# comment in test-quotearg.po.
+if test $LOCALE_FR_UTF8 != none; then
+  locale=$LOCALE_FR_UTF8
+else
+  if test $LOCALE_FR != none; then
+    locale=$LOCALE_FR
+  else
+    locale=none
+  fi
+fi
+
+LOCALE=$locale LOCALEDIR="$srcdir/locale" \
+./test-quotearg${EXEEXT}
diff --git a/tests/gnu/test-rawmemchr.c b/tests/gnu/test-rawmemchr.c
new file mode 100755
index 00000000..94768183
--- /dev/null
+++ b/tests/gnu/test-rawmemchr.c
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+ * Written by Eric Blake and Bruno Haible
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (rawmemchr, void *, (void const *, int));
+
+#include <stdlib.h>
+
+#include "macros.h"
+
+/* Calculating void * + int is not portable, so this wrapper converts
+   to char * to make the tests easier to write.  */
+#define RAWMEMCHR (char *) rawmemchr
+
+int
+main (void)
+{
+  size_t n = 0x100000;
+  char *input = malloc (n + 1);
+  ASSERT (input);
+
+  input[0] = 'a';
+  input[1] = 'b';
+  memset (input + 2, 'c', 1024);
+  memset (input + 1026, 'd', n - 1028);
+  input[n - 2] = 'e';
+  input[n - 1] = 'a';
+  input[n] = '\0';
+
+  /* Basic behavior tests.  */
+  ASSERT (RAWMEMCHR (input, 'a') == input);
+  ASSERT (RAWMEMCHR (input, 'b') == input + 1);
+  ASSERT (RAWMEMCHR (input, 'c') == input + 2);
+  ASSERT (RAWMEMCHR (input, 'd') == input + 1026);
+
+  ASSERT (RAWMEMCHR (input + 1, 'a') == input + n - 1);
+  ASSERT (RAWMEMCHR (input + 1, 'e') == input + n - 2);
+
+  ASSERT (RAWMEMCHR (input, '\0') == input + n);
+
+  /* Alignment tests.  */
+  {
+    int i, j;
+    for (i = 0; i < 32; i++)
+      {
+        for (j = 0; j < 256; j++)
+          input[i + j] = j;
+        for (j = 0; j < 256; j++)
+          {
+            ASSERT (RAWMEMCHR (input + i, j) == input + i + j);
+          }
+      }
+  }
+
+  free (input);
+
+  return 0;
+}
diff --git a/tests/gnu/test-readlink.c b/tests/gnu/test-readlink.c
new file mode 100755
index 00000000..a144964f
--- /dev/null
+++ b/tests/gnu/test-readlink.c
@@ -0,0 +1,48 @@
+/* Tests of readlink.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (readlink, ssize_t, (char const *, char *, size_t));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-readlink.t"
+
+#include "test-readlink.h"
+
+int
+main (void)
+{
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_readlink (readlink, true);
+}
diff --git a/tests/gnu/test-readlink.h b/tests/gnu/test-readlink.h
new file mode 100755
index 00000000..1e482dfe
--- /dev/null
+++ b/tests/gnu/test-readlink.h
@@ -0,0 +1,119 @@
+/* Tests of readlink.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+/* This file is designed to test both readlink(a,b,c) and
+   readlinkat(AT_FDCWD,a,b,c).  FUNC is the function to test.  Assumes
+   that BASE and ASSERT are already defined, and that appropriate
+   headers are already included.  If PRINT, warn before skipping
+   symlink tests with status 77.  */
+
+static int
+test_readlink (ssize_t (*func) (char const *, char *, size_t), bool print)
+{
+  char buf[80];
+
+  /* Sanity checks of failures.  Mingw lacks symlink, but readlink can
+     still distinguish between various errors.  */
+  memset (buf, 0xff, sizeof buf);
+  errno = 0;
+  ASSERT (func ("no_such", buf, sizeof buf) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("no_such/", buf, sizeof buf) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("", buf, sizeof buf) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (".", buf, sizeof buf) == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (func ("./", buf, sizeof buf) == -1);
+  ASSERT (errno == EINVAL);
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  errno = 0;
+  ASSERT (func (BASE "file", buf, sizeof buf) == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (func (BASE "file/", buf, sizeof buf) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Now test actual symlinks.  */
+  if (symlink (BASE "dir", BASE "link"))
+    {
+      ASSERT (unlink (BASE "file") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "link/", buf, sizeof buf) == -1);
+  ASSERT (errno == EINVAL);
+  ASSERT (symlink (BASE "link", BASE "link2") == 0);
+  errno = 0;
+  ASSERT (func (BASE "link2/", buf, sizeof buf) == -1);
+  ASSERT (errno == EINVAL);
+  ASSERT (unlink (BASE "link2") == 0);
+  ASSERT (symlink (BASE "file", BASE "link2") == 0);
+  errno = 0;
+  ASSERT (func (BASE "link2/", buf, sizeof buf) == -1);
+  ASSERT (errno == ENOTDIR);
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link2") == 0);
+  {
+    /* Up till now, no readlink has been successful, so buf should be
+       unchanged.  */
+    int i;
+    for (i = 0; i < sizeof buf; i++)
+      ASSERT (buf[i] == (char) 0xff);
+  }
+  {
+    size_t len = strlen (BASE "dir");
+    /* When passing too small of a buffer, expect the truncated
+       length, or an ERANGE failure.  However, a size of 0 is not
+       portable enough to test.  */
+    ssize_t result;
+    errno = 0;
+    result = readlink (BASE "link", buf, 1);
+    if (result == -1)
+      {
+        ASSERT (errno == ERANGE);
+        ASSERT (buf[0] == (char) 0xff);
+      }
+    else
+      {
+        ASSERT (result == 1);
+        ASSERT (buf[0] == BASE[0]);
+      }
+    ASSERT (buf[1] == (char) 0xff);
+    ASSERT (func (BASE "link", buf, len) == len);
+    ASSERT (strncmp (buf, BASE "dir", len) == 0);
+    ASSERT (buf[len] == (char) 0xff);
+    ASSERT (func (BASE "link", buf, sizeof buf) == len);
+    ASSERT (strncmp (buf, BASE "dir", len) == 0);
+    /* POSIX says rest of buf is unspecified; but in practice, it is
+       either left alone, or NUL-terminated.  */
+    ASSERT (buf[len] == '\0' || buf[len] == (char) 0xff);
+  }
+  ASSERT (rmdir (BASE "dir") == 0);
+  ASSERT (unlink (BASE "link") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-rename.c b/tests/gnu/test-rename.c
new file mode 100755
index 00000000..c5c6c439
--- /dev/null
+++ b/tests/gnu/test-rename.c
@@ -0,0 +1,46 @@
+/* Test of rename() function.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (rename, int, (char const *, char const *));
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-rename.t"
+
+#include "test-rename.h"
+
+int
+main (void)
+{
+  /* Remove any garbage left from previous partial runs.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_rename (rename, true);
+}
diff --git a/tests/gnu/test-rename.h b/tests/gnu/test-rename.h
new file mode 100755
index 00000000..9a3f4ecf
--- /dev/null
+++ b/tests/gnu/test-rename.h
@@ -0,0 +1,446 @@
+/* Test of rename() function.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* This file is designed to test both rename(a,b) and
+   renameat(AT_FDCWD,a,AT_FDCWD,b).  FUNC is the function to test.
+   Assumes that BASE and ASSERT are already defined, and that
+   appropriate headers are already included.  If PRINT, warn before
+   skipping symlink tests with status 77.  */
+
+static int
+test_rename (int (*func) (char const *, char const *), bool print)
+{
+  /* Setup.  */
+  struct stat st;
+  int fd = creat (BASE "file", 0600);
+  ASSERT (0 <= fd);
+  ASSERT (write (fd, "hi", 2) == 2);
+  ASSERT (close (fd) == 0);
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+
+  /* Obvious errors.  */
+
+  errno = 0; /* Missing source.  */
+  ASSERT (func (BASE "missing", BASE "missing") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "missing/", BASE "missing") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "missing", BASE "missing/") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0; /* Empty operand.  */
+  ASSERT (func ("", BASE "missing") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "file", "") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "", "") == -1);
+  ASSERT (errno == ENOENT);
+
+  /* Files.  */
+  errno = 0; /* Trailing slash.  */
+  ASSERT (func (BASE "file", BASE "file2/") == -1);
+  ASSERT (errno == ENOENT || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "file/", BASE "file2") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (stat (BASE "file2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (func (BASE "file", BASE "file2") == 0); /* Simple rename.  */
+  errno = 0;
+  ASSERT (stat (BASE "file", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "file2", &st) == 0);
+  ASSERT (st.st_size == 2);
+  ASSERT (close (creat (BASE "file", 0600)) == 0); /* Overwrite.  */
+  errno = 0;
+  ASSERT (func (BASE "file2", BASE "file/") == -1);
+  ASSERT (errno == ENOTDIR);
+  ASSERT (func (BASE "file2", BASE "file") == 0);
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "file", &st) == 0);
+  ASSERT (st.st_size == 2);
+  errno = 0;
+  ASSERT (stat (BASE "file2", &st) == -1);
+  ASSERT (errno == ENOENT);
+
+  /* Directories.  */
+  ASSERT (func (BASE "dir", BASE "dir2/") == 0); /* Simple rename.  */
+  errno = 0;
+  ASSERT (stat (BASE "dir", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (stat (BASE "dir2", &st) == 0);
+  ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+  ASSERT (stat (BASE "dir", &st) == 0);
+  errno = 0;
+  ASSERT (stat (BASE "dir2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (func (BASE "dir", BASE "dir2") == 0);
+  errno = 0;
+  ASSERT (stat (BASE "dir", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (stat (BASE "dir2", &st) == 0);
+  ASSERT (mkdir (BASE "dir", 0700) == 0); /* Empty onto empty.  */
+  ASSERT (func (BASE "dir2", BASE "dir") == 0);
+  ASSERT (mkdir (BASE "dir2", 0700) == 0);
+  ASSERT (func (BASE "dir2", BASE "dir/") == 0);
+  ASSERT (mkdir (BASE "dir2", 0700) == 0);
+  ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+  ASSERT (mkdir (BASE "dir2", 0700) == 0);
+  ASSERT (close (creat (BASE "dir/file", 0600)) == 0); /* Empty onto full.  */
+  errno = 0;
+  ASSERT (func (BASE "dir2", BASE "dir") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+  errno = 0;
+  ASSERT (func (BASE "dir2/", BASE "dir") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+  errno = 0;
+  ASSERT (func (BASE "dir2", BASE "dir/") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+  ASSERT (func (BASE "dir", BASE "dir2") == 0); /* Full onto empty.  */
+  errno = 0;
+  ASSERT (stat (BASE "dir", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (stat (BASE "dir2/file", &st) == 0);
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  ASSERT (func (BASE "dir2/", BASE "dir") == 0);
+  ASSERT (stat (BASE "dir/file", &st) == 0);
+  errno = 0;
+  ASSERT (stat (BASE "dir2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (mkdir (BASE "dir2", 0700) == 0);
+  ASSERT (func (BASE "dir", BASE "dir2/") == 0);
+  errno = 0;
+  ASSERT (stat (BASE "dir", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (stat (BASE "dir2/file", &st) == 0);
+  ASSERT (unlink (BASE "dir2/file") == 0);
+  errno = 0; /* Reject trailing dot.  */
+  ASSERT (func (BASE "dir2", BASE "dir/.") == -1);
+  ASSERT (errno == EINVAL || errno == ENOENT);
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir2", BASE "dir/.") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY || errno == EISDIR
+          || errno == ENOTEMPTY);
+  errno = 0;
+  ASSERT (func (BASE "dir2/.", BASE "dir") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY);
+  ASSERT (rmdir (BASE "dir") == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir2", BASE "dir/.//") == -1);
+  ASSERT (errno == EINVAL || errno == ENOENT);
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir2", BASE "dir/.//") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY || errno == EISDIR
+          || errno == ENOTEMPTY);
+  errno = 0;
+  ASSERT (func (BASE "dir2/.//", BASE "dir") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY);
+  ASSERT (rmdir (BASE "dir2") == 0);
+  errno = 0; /* Move into subdir.  */
+  ASSERT (func (BASE "dir", BASE "dir/sub") == -1);
+  ASSERT (errno == EINVAL || errno == EACCES);
+  errno = 0;
+  ASSERT (stat (BASE "dir/sub", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (mkdir (BASE "dir/sub", 0700) == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir", BASE "dir/sub") == -1);
+  ASSERT (errno == EINVAL);
+  ASSERT (stat (BASE "dir/sub", &st) == 0);
+  ASSERT (rmdir (BASE "dir/sub") == 0);
+
+  /* Mixing file and directory.  */
+  errno = 0; /* File onto dir.  */
+  ASSERT (func (BASE "file", BASE "dir") == -1);
+  ASSERT (errno == EISDIR || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "file", BASE "dir/") == -1);
+  ASSERT (errno == EISDIR || errno == ENOTDIR);
+  errno = 0; /* Dir onto file.  */
+  ASSERT (func (BASE "dir", BASE "file") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "dir/", BASE "file") == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Hard links.  */
+  ASSERT (func (BASE "file", BASE "file") == 0); /* File onto self.  */
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "file", &st) == 0);
+  ASSERT (st.st_size == 2);
+  ASSERT (func (BASE "dir", BASE "dir") == 0); /* Empty dir onto self.  */
+  ASSERT (stat (BASE "dir", &st) == 0);
+  ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
+  ASSERT (func (BASE "dir", BASE "dir") == 0); /* Full dir onto self.  */
+  ASSERT (unlink (BASE "dir/file") == 0);
+  {
+    /*  Not all file systems support link.  Mingw doesn't have
+        reliable st_nlink on hard links, but our implementation does
+        fail with EPERM on poor file systems, and we can detect the
+        inferior stat() via st_ino.  Cygwin 1.5.x copies rather than
+        links files on those file systems, but there, st_nlink and
+        st_ino are reliable.  */
+    int ret = link (BASE "file", BASE "file2");
+    if (!ret)
+      {
+        memset (&st, 0, sizeof st);
+        ASSERT (stat (BASE "file2", &st) == 0);
+        if (st.st_ino && st.st_nlink != 2)
+          {
+            ASSERT (unlink (BASE "file2") == 0);
+            errno = EPERM;
+            ret = -1;
+          }
+      }
+    if (ret == -1)
+      {
+        /* If the device does not support hard links, errno is
+           EPERM on Linux, EOPNOTSUPP on FreeBSD.  */
+        switch (errno)
+          {
+          case EPERM:
+          case EOPNOTSUPP:
+            if (print)
+              fputs ("skipping test: "
+                     "hard links not supported on this file system\n",
+                     stderr);
+            ASSERT (unlink (BASE "file") == 0);
+            ASSERT (rmdir (BASE "dir") == 0);
+            return 77;
+          default:
+            perror ("link");
+            return 1;
+          }
+      }
+    ASSERT (ret == 0);
+  }
+  ASSERT (func (BASE "file", BASE "file2") == 0); /* File onto hard link.  */
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "file", &st) == 0);
+  ASSERT (st.st_size == 2);
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "file2", &st) == 0);
+  ASSERT (st.st_size == 2);
+  ASSERT (unlink (BASE "file2") == 0);
+
+  /* Symlinks.  */
+  if (symlink (BASE "file", BASE "link1"))
+    {
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      ASSERT (unlink (BASE "file") == 0);
+      ASSERT (rmdir (BASE "dir") == 0);
+      return 77;
+    }
+  ASSERT (func (BASE "link1", BASE "link2") == 0); /* Simple rename.  */
+  ASSERT (stat (BASE "file", &st) == 0);
+  errno = 0;
+  ASSERT (lstat (BASE "link1", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link2", &st) == 0);
+  ASSERT (S_ISLNK (st.st_mode));
+  ASSERT (symlink (BASE "nowhere", BASE "link1") == 0); /* Overwrite.  */
+  ASSERT (func (BASE "link2", BASE "link1") == 0);
+  memset (&st, 0, sizeof st);
+  ASSERT (stat (BASE "link1", &st) == 0);
+  ASSERT (st.st_size == 2);
+  errno = 0;
+  ASSERT (lstat (BASE "link2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  ASSERT (symlink (BASE "link2", BASE "link2") == 0); /* Symlink loop.  */
+  ASSERT (func (BASE "link2", BASE "link2") == 0);
+  errno = 0;
+  ASSERT (func (BASE "link2/", BASE "link2") == -1);
+  ASSERT (errno == ELOOP || errno == ENOTDIR);
+  ASSERT (func (BASE "link2", BASE "link3") == 0);
+  ASSERT (unlink (BASE "link3") == 0);
+  ASSERT (symlink (BASE "nowhere", BASE "link2") == 0); /* Dangling link.  */
+  ASSERT (func (BASE "link2", BASE "link3") == 0);
+  errno = 0;
+  ASSERT (lstat (BASE "link2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link3", &st) == 0);
+  errno = 0; /* Trailing slash on dangling.  */
+  ASSERT (func (BASE "link3/", BASE "link2") == -1);
+  ASSERT (errno == ENOENT || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "link3", BASE "link2/") == -1);
+  ASSERT (errno == ENOENT || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (lstat (BASE "link2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link3", &st) == 0);
+  errno = 0; /* Trailing slash on link to file.  */
+  ASSERT (func (BASE "link1/", BASE "link2") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "link1", BASE "link3/") == -1);
+  ASSERT (errno == ENOENT || errno == ENOTDIR);
+
+  /* Mixing symlink and file.  */
+  ASSERT (close (creat (BASE "file2", 0600)) == 0); /* File onto link.  */
+  ASSERT (func (BASE "file2", BASE "link3") == 0);
+  errno = 0;
+  ASSERT (stat (BASE "file2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link3", &st) == 0);
+  ASSERT (S_ISREG (st.st_mode));
+  ASSERT (unlink (BASE "link3") == 0);
+  ASSERT (symlink (BASE "nowhere", BASE "link2") == 0); /* Link onto file.  */
+  ASSERT (close (creat (BASE "file2", 0600)) == 0);
+  ASSERT (func (BASE "link2", BASE "file2") == 0);
+  errno = 0;
+  ASSERT (lstat (BASE "link2", &st) == -1);
+  ASSERT (errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "file2", &st) == 0);
+  ASSERT (S_ISLNK (st.st_mode));
+  ASSERT (unlink (BASE "file2") == 0);
+  errno = 0; /* Trailing slash.  */
+  ASSERT (func (BASE "file/", BASE "link1") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "file", BASE "link1/") == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "link1/", BASE "file") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "link1", BASE "file/") == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "file", &st) == 0);
+  ASSERT (S_ISREG (st.st_mode));
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link1", &st) == 0);
+  ASSERT (S_ISLNK (st.st_mode));
+
+  /* Mixing symlink and directory.  */
+  errno = 0; /* Directory onto link.  */
+  ASSERT (func (BASE "dir", BASE "link1") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "dir/", BASE "link1") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "dir", BASE "link1/") == -1);
+  ASSERT (errno == ENOTDIR);
+  errno = 0; /* Link onto directory.  */
+  ASSERT (func (BASE "link1", BASE "dir") == -1);
+  ASSERT (errno == EISDIR || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "link1", BASE "dir/") == -1);
+  ASSERT (errno == EISDIR || errno == ENOTDIR);
+  errno = 0;
+  ASSERT (func (BASE "link1/", BASE "dir") == -1);
+  ASSERT (errno == ENOTDIR);
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "link1", &st) == 0);
+  ASSERT (S_ISLNK (st.st_mode));
+  memset (&st, 0, sizeof st);
+  ASSERT (lstat (BASE "dir", &st) == 0);
+  ASSERT (S_ISDIR (st.st_mode));
+
+  /* POSIX requires rename("link-to-dir/","other") to rename "dir" and
+     leave "link-to-dir" dangling, but GNU rejects this.  POSIX
+     requires rename("dir","dangling/") to create the directory so
+     that "dangling/" now resolves, but GNU rejects this.  While we
+     prefer GNU behavior, we don't enforce it.  However, we do test
+     that the system either follows POSIX in both cases, or follows
+     GNU.  */
+  {
+    int result;
+    ASSERT (symlink (BASE "dir2", BASE "link2") == 0);
+    errno = 0;
+    result = func (BASE "dir", BASE "link2/");
+    if (result == 0)
+      {
+        /* POSIX.  */
+        errno = 0;
+        ASSERT (lstat (BASE "dir", &st) == -1);
+        ASSERT (errno == ENOENT);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "dir2", &st) == 0);
+        ASSERT (S_ISDIR (st.st_mode));
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "link2", &st) == 0);
+        ASSERT (S_ISLNK (st.st_mode));
+        ASSERT (func (BASE "link2/", BASE "dir") == 0);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "dir", &st) == 0);
+        ASSERT (S_ISDIR (st.st_mode));
+        errno = 0;
+        ASSERT (lstat (BASE "dir2", &st) == -1);
+        ASSERT (errno == ENOENT);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "link2", &st) == 0);
+        ASSERT (S_ISLNK (st.st_mode));
+      }
+    else
+      {
+        /* GNU.  */
+        ASSERT (result == -1);
+        ASSERT (errno == ENOTDIR);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "dir", &st) == 0);
+        ASSERT (S_ISDIR (st.st_mode));
+        errno = 0;
+        ASSERT (lstat (BASE "dir2", &st) == -1);
+        ASSERT (errno == ENOENT);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "link2", &st) == 0);
+        ASSERT (S_ISLNK (st.st_mode));
+        ASSERT (unlink (BASE "link2") == 0);
+        ASSERT (symlink (BASE "dir", BASE "link2") == 0);
+        errno = 0; /* OpenBSD notices that link2/ and dir are the same.  */
+        result = func (BASE "link2/", BASE "dir");
+        if (result) /* GNU/Linux rejects attempts to use link2/.  */
+          {
+            ASSERT (result == -1);
+            ASSERT (errno == ENOTDIR);
+          }
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "dir", &st) == 0);
+        ASSERT (S_ISDIR (st.st_mode));
+        errno = 0;
+        ASSERT (lstat (BASE "dir2", &st) == -1);
+        ASSERT (errno == ENOENT);
+        memset (&st, 0, sizeof st);
+        ASSERT (lstat (BASE "link2", &st) == 0);
+        ASSERT (S_ISLNK (st.st_mode));
+      }
+  }
+
+  /* Clean up.  */
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (rmdir (BASE "dir") == 0);
+  ASSERT (unlink (BASE "link1") == 0);
+  ASSERT (unlink (BASE "link2") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-rmdir.c b/tests/gnu/test-rmdir.c
new file mode 100755
index 00000000..7b1ef37d
--- /dev/null
+++ b/tests/gnu/test-rmdir.c
@@ -0,0 +1,47 @@
+/* Tests of rmdir.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (rmdir, int, (char const *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-rmdir.t"
+
+#include "test-rmdir.h"
+
+int
+main (void)
+{
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_rmdir_func (rmdir, true);
+}
diff --git a/tests/gnu/test-rmdir.h b/tests/gnu/test-rmdir.h
new file mode 100755
index 00000000..6d5d56ef
--- /dev/null
+++ b/tests/gnu/test-rmdir.h
@@ -0,0 +1,101 @@
+/* Tests of rmdir.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+/* This file is designed to test both rmdir(n) and
+   unlinkat(AT_FDCWD,n,AT_REMOVEDIR).  FUNC is the function to test.
+   Assumes that BASE and ASSERT are already defined, and that
+   appropriate headers are already included.  If PRINT, then warn
+   before returning status 77 when symlinks are unsupported.  */
+
+static int
+test_rmdir_func (int (*func) (char const *name), bool print)
+{
+  /* Setup.  */
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  ASSERT (close (creat (BASE "dir/file", 0600)) == 0);
+
+  /* Basic error conditions.  */
+  errno = 0;
+  ASSERT (func ("") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "nosuch") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (BASE "nosuch/") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func (".") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY);
+  /* Resulting errno after ".." or "/" is too varied to test; it is
+     reasonable to see any of EINVAL, EBUSY, EEXIST, ENOTEMPTY,
+     EACCES, EPERM.  */
+  ASSERT (func ("..") == -1);
+  ASSERT (func ("/") == -1);
+  ASSERT (func ("///") == -1);
+  errno = 0;
+  ASSERT (func (BASE "dir/file/") == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Non-empty directory.  */
+  errno = 0;
+  ASSERT (func (BASE "dir") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTEMPTY);
+
+  /* Non-directory.  */
+  errno = 0;
+  ASSERT (func (BASE "dir/file") == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Empty directory.  */
+  ASSERT (unlink (BASE "dir/file") == 0);
+  errno = 0;
+  ASSERT (func (BASE "dir/.//") == -1);
+  ASSERT (errno == EINVAL || errno == EBUSY);
+  ASSERT (func (BASE "dir") == 0);
+
+  /* Test symlink behavior.  Specifying trailing slash should remove
+     referent directory (POSIX), or cause ENOTDIR failure (Linux), but
+     not touch symlink.  We prefer the Linux behavior for its
+     intuitiveness (especially compared to rmdir("symlink-to-file/")),
+     but not enough to penalize POSIX systems with an rpl_rmdir.  */
+  if (symlink (BASE "dir", BASE "link") != 0)
+    {
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  if (func (BASE "link/") == 0)
+    {
+      struct stat st;
+      errno = 0;
+      ASSERT (stat (BASE "link", &st) == -1);
+      ASSERT (errno == ENOENT);
+    }
+  else
+    {
+      ASSERT (errno == ENOTDIR);
+      ASSERT (func (BASE "dir") == 0);
+    }
+  ASSERT (unlink (BASE "link") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-sched.c b/tests/gnu/test-sched.c
new file mode 100755
index 00000000..15680d41
--- /dev/null
+++ b/tests/gnu/test-sched.c
@@ -0,0 +1,38 @@
+/* Test of <sched.h> substitute.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <sched.h>
+
+/* Check that 'struct sched_param' is defined.  */
+static struct sched_param a;
+
+/* Check that the SCHED_* macros are defined and compile-time constants.  */
+int b[] = { SCHED_FIFO, SCHED_RR, SCHED_OTHER };
+
+static int f1;
+
+int
+main ()
+{
+  /* Check fields of 'struct sched_param'.  */
+  f1 = a.sched_priority;
+
+  return 0;
+}
diff --git a/tests/gnu/test-setenv.c b/tests/gnu/test-setenv.c
new file mode 100755
index 00000000..de589c1b
--- /dev/null
+++ b/tests/gnu/test-setenv.c
@@ -0,0 +1,56 @@
+/* Tests of setenv.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (setenv, int, (char const *, char const *, int));
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  /* Test overwriting.  */
+  ASSERT (setenv ("a", "==", -1) == 0);
+  ASSERT (setenv ("a", "2", 0) == 0);
+  ASSERT (strcmp (getenv ("a"), "==") == 0);
+
+  /* Required to fail with EINVAL.  */
+  errno = 0;
+  ASSERT (setenv ("", "", 1) == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (setenv ("a=b", "", 0) == -1);
+  ASSERT (errno == EINVAL);
+#if 0
+  /* glibc and gnulib's implementation guarantee this, but POSIX no
+     longer requires it: http://austingroupbugs.net/view.php?id=185  */
+  errno = 0;
+  ASSERT (setenv (NULL, "", 0) == -1);
+  ASSERT (errno == EINVAL);
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-sigaction.c b/tests/gnu/test-sigaction.c
new file mode 100755
index 00000000..73579d96
--- /dev/null
+++ b/tests/gnu/test-sigaction.c
@@ -0,0 +1,116 @@
+/* Test of sigaction() function.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2008.  */
+
+#include <config.h>
+
+#include <signal.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (sigaction, int, (int, struct sigaction const *,
+                                  struct sigaction *));
+
+#include <stddef.h>
+
+#include "macros.h"
+
+#ifndef SA_NOCLDSTOP
+# define SA_NOCLDSTOP 0
+#endif
+#ifndef SA_ONSTACK
+# define SA_ONSTACK 0
+#endif
+#ifndef SA_SIGINFO
+# define SA_SIGINFO 0
+#endif
+#ifndef SA_NOCLDWAIT
+# define SA_NOCLDWAIT 0
+#endif
+
+/* Define a mask of flags required by POSIX.  Some implementations
+   provide other flags as extensions, such as SA_RESTORER, that we
+   must ignore in this test.  */
+#define MASK_SA_FLAGS (SA_NOCLDSTOP | SA_ONSTACK | SA_RESETHAND | SA_RESTART \
+                       | SA_SIGINFO | SA_NOCLDWAIT | SA_NODEFER)
+
+/* This test is unsafe in the presence of an asynchronous SIGABRT,
+   because we install a signal-handler that is intentionally not
+   async-safe.  Hopefully, this does not lead to too many reports of
+   false failures, since people don't generally use 'kill -s SIGABRT'
+   to end a runaway program.  */
+
+static void
+handler (int sig)
+{
+  static int entry_count;
+  struct sigaction sa;
+  ASSERT (sig == SIGABRT);
+  ASSERT (sigaction (SIGABRT, NULL, &sa) == 0);
+  ASSERT ((sa.sa_flags & SA_SIGINFO) == 0);
+  switch (entry_count++)
+    {
+    case 0:
+      ASSERT ((sa.sa_flags & SA_RESETHAND) == 0);
+      ASSERT (sa.sa_handler == handler);
+      break;
+    case 1:
+      /* This assertion fails on glibc-2.3.6 systems with LinuxThreads,
+         when this program is linked with -lpthread, due to the sigaction()
+         override in libpthread.so.  */
+#if !defined __GLIBC__
+      ASSERT (sa.sa_handler == SIG_DFL);
+#endif
+      break;
+    default:
+      ASSERT (0);
+    }
+}
+
+int
+main (void)
+{
+  struct sigaction sa;
+  struct sigaction old_sa;
+  sa.sa_handler = handler;
+
+  sa.sa_flags = 0;
+  ASSERT (sigemptyset (&sa.sa_mask) == 0);
+  ASSERT (sigaction (SIGABRT, &sa, NULL) == 0);
+  ASSERT (raise (SIGABRT) == 0);
+
+  sa.sa_flags = SA_RESETHAND | SA_NODEFER;
+  ASSERT (sigaction (SIGABRT, &sa, &old_sa) == 0);
+  ASSERT ((old_sa.sa_flags & MASK_SA_FLAGS) == 0);
+  ASSERT (old_sa.sa_handler == handler);
+  ASSERT (raise (SIGABRT) == 0);
+
+  sa.sa_handler = SIG_DFL;
+  ASSERT (sigaction (SIGABRT, &sa, &old_sa) == 0);
+  ASSERT ((old_sa.sa_flags & SA_SIGINFO) == 0);
+#if !defined __GLIBC__ /* see above */
+  ASSERT (old_sa.sa_handler == SIG_DFL);
+#endif
+
+  sa.sa_handler = SIG_IGN;
+  ASSERT (sigaction (SIGABRT, &sa, NULL) == 0);
+  ASSERT (raise (SIGABRT) == 0);
+  ASSERT (sigaction (SIGABRT, NULL, &old_sa) == 0);
+  ASSERT (old_sa.sa_handler == SIG_IGN);
+  ASSERT (raise (SIGABRT) == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-signal.c b/tests/gnu/test-signal.c
new file mode 100755
index 00000000..e4258d3b
--- /dev/null
+++ b/tests/gnu/test-signal.c
@@ -0,0 +1,125 @@
+/* Test of <signal.h> substitute.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <signal.h>
+
+/* Check for required types.  */
+struct
+{
+  size_t a;
+  uid_t b;
+  volatile sig_atomic_t c;
+  sigset_t d;
+  pid_t e;
+#if 0
+  /* Not guaranteed by gnulib.  */
+  pthread_t f;
+  struct timespec g;
+#endif
+} s;
+
+int
+main (void)
+{
+  switch (0)
+    {
+      /* The following are guaranteed by C.  */
+    case 0:
+    case SIGABRT:
+    case SIGFPE:
+    case SIGILL:
+    case SIGINT:
+    case SIGSEGV:
+    case SIGTERM:
+      /* The following is guaranteed by gnulib.  */
+#if GNULIB_SIGPIPE || defined SIGPIPE
+    case SIGPIPE:
+#endif
+      /* Ensure no conflict with other standardized names.  */
+#ifdef SIGALRM
+    case SIGALRM:
+#endif
+#ifdef SIGBUS
+    case SIGBUS:
+#endif
+#ifdef SIGCHLD
+    case SIGCHLD:
+#endif
+#ifdef SIGCONT
+    case SIGCONT:
+#endif
+#ifdef SIGHUP
+    case SIGHUP:
+#endif
+#ifdef SIGKILL
+    case SIGKILL:
+#endif
+#ifdef SIGQUIT
+    case SIGQUIT:
+#endif
+#ifdef SIGSTOP
+    case SIGSTOP:
+#endif
+#ifdef SIGTSTP
+    case SIGTSTP:
+#endif
+#ifdef SIGTTIN
+    case SIGTTIN:
+#endif
+#ifdef SIGTTOU
+    case SIGTTOU:
+#endif
+#ifdef SIGUSR1
+    case SIGUSR1:
+#endif
+#ifdef SIGUSR2
+    case SIGUSR2:
+#endif
+#ifdef SIGSYS
+    case SIGSYS:
+#endif
+#ifdef SIGTRAP
+    case SIGTRAP:
+#endif
+#ifdef SIGURG
+    case SIGURG:
+#endif
+#ifdef SIGVTALRM
+    case SIGVTALRM:
+#endif
+#ifdef SIGXCPU
+    case SIGXCPU:
+#endif
+#ifdef SIGXFSZ
+    case SIGXFSZ:
+#endif
+      /* SIGRTMIN and SIGRTMAX need not be compile-time constants.  */
+#if 0
+# ifdef SIGRTMIN
+    case SIGRTMIN:
+# endif
+# ifdef SIGRTMAX
+    case SIGRTMAX:
+# endif
+#endif
+      ;
+    }
+  return s.a + s.b + s.c + s.e;
+}
diff --git a/tests/gnu/test-signbit.c b/tests/gnu/test-signbit.c
new file mode 100755
index 00000000..9581190c
--- /dev/null
+++ b/tests/gnu/test-signbit.c
@@ -0,0 +1,197 @@
+/* Test of signbit() substitute.
+   Copyright (C) 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <math.h>
+
+/* signbit must be a macro.  */
+#ifndef signbit
+# error missing declaration
+#endif
+
+#include <float.h>
+#include <limits.h>
+
+#include "macros.h"
+
+float zerof = 0.0f;
+double zerod = 0.0;
+long double zerol = 0.0L;
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0f.
+   So we use -zerof instead.  */
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zerod instead.  */
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zerol instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zerol (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zerol compute_minus_zerol ()
+#else
+long double minus_zerol = -0.0L;
+#endif
+
+static void
+test_signbitf ()
+{
+  /* Finite values.  */
+  ASSERT (!signbit (3.141f));
+  ASSERT (!signbit (3.141e30f));
+  ASSERT (!signbit (3.141e-30f));
+  ASSERT (signbit (-2.718f));
+  ASSERT (signbit (-2.718e30f));
+  ASSERT (signbit (-2.718e-30f));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0f));
+  if (1.0f / -zerof < 0)
+    ASSERT (signbit (-zerof));
+  else
+    ASSERT (!signbit (-zerof));
+  /* Infinite values.  */
+  ASSERT (!signbit (1.0f / 0.0f));
+  ASSERT (signbit (-1.0f / 0.0f));
+  /* Quiet NaN.  */
+  (void) signbit (zerof / zerof);
+#if defined FLT_EXPBIT0_WORD && defined FLT_EXPBIT0_BIT
+  /* Signalling NaN.  */
+  {
+    #define NWORDS \
+      ((sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+    typedef union { float value; unsigned int word[NWORDS]; } memory_float;
+    memory_float m;
+    m.value = zerof / zerof;
+# if FLT_EXPBIT0_BIT > 0
+    m.word[FLT_EXPBIT0_WORD] ^= (unsigned int) 1 << (FLT_EXPBIT0_BIT - 1);
+# else
+    m.word[FLT_EXPBIT0_WORD + (FLT_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    if (FLT_EXPBIT0_WORD < NWORDS / 2)
+      m.word[FLT_EXPBIT0_WORD + 1] |= (unsigned int) 1 << FLT_EXPBIT0_BIT;
+    else
+      m.word[0] |= (unsigned int) 1;
+    (void) signbit (m.value);
+    #undef NWORDS
+  }
+#endif
+}
+
+static void
+test_signbitd ()
+{
+  /* Finite values.  */
+  ASSERT (!signbit (3.141));
+  ASSERT (!signbit (3.141e30));
+  ASSERT (!signbit (3.141e-30));
+  ASSERT (signbit (-2.718));
+  ASSERT (signbit (-2.718e30));
+  ASSERT (signbit (-2.718e-30));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0));
+  if (1.0 / -zerod < 0)
+    ASSERT (signbit (-zerod));
+  else
+    ASSERT (!signbit (-zerod));
+  /* Infinite values.  */
+  ASSERT (!signbit (1.0 / 0.0));
+  ASSERT (signbit (-1.0 / 0.0));
+  /* Quiet NaN.  */
+  (void) signbit (zerod / zerod);
+#if defined DBL_EXPBIT0_WORD && defined DBL_EXPBIT0_BIT
+  /* Signalling NaN.  */
+  {
+    #define NWORDS \
+      ((sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+    typedef union { double value; unsigned int word[NWORDS]; } memory_double;
+    memory_double m;
+    m.value = zerod / zerod;
+# if DBL_EXPBIT0_BIT > 0
+    m.word[DBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (DBL_EXPBIT0_BIT - 1);
+# else
+    m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    m.word[DBL_EXPBIT0_WORD + (DBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      |= (unsigned int) 1 << DBL_EXPBIT0_BIT;
+    (void) signbit (m.value);
+    #undef NWORDS
+  }
+#endif
+}
+
+static void
+test_signbitl ()
+{
+  /* Finite values.  */
+  ASSERT (!signbit (3.141L));
+  ASSERT (!signbit (3.141e30L));
+  ASSERT (!signbit (3.141e-30L));
+  ASSERT (signbit (-2.718L));
+  ASSERT (signbit (-2.718e30L));
+  ASSERT (signbit (-2.718e-30L));
+  /* Zeros.  */
+  ASSERT (!signbit (0.0L));
+  if (1.0L / minus_zerol < 0)
+    ASSERT (signbit (minus_zerol));
+  else
+    ASSERT (!signbit (minus_zerol));
+  /* Infinite values.  */
+  ASSERT (!signbit (1.0L / 0.0L));
+  ASSERT (signbit (-1.0L / 0.0L));
+  /* Quiet NaN.  */
+  (void) signbit (zerol / zerol);
+#if defined LDBL_EXPBIT0_WORD && defined LDBL_EXPBIT0_BIT
+  /* Signalling NaN.  */
+  {
+    #define NWORDS \
+      ((sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int))
+    typedef union { long double value; unsigned int word[NWORDS]; } memory_long_double;
+    memory_long_double m;
+    m.value = zerol / zerol;
+# if LDBL_EXPBIT0_BIT > 0
+    m.word[LDBL_EXPBIT0_WORD] ^= (unsigned int) 1 << (LDBL_EXPBIT0_BIT - 1);
+# else
+    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      ^= (unsigned int) 1 << (sizeof (unsigned int) * CHAR_BIT - 1);
+# endif
+    m.word[LDBL_EXPBIT0_WORD + (LDBL_EXPBIT0_WORD < NWORDS / 2 ? 1 : - 1)]
+      |= (unsigned int) 1 << LDBL_EXPBIT0_BIT;
+    (void) signbit (m.value);
+    #undef NWORDS
+  }
+#endif
+}
+
+int
+main ()
+{
+  test_signbitf ();
+  test_signbitd ();
+  test_signbitl ();
+  return 0;
+}
diff --git a/tests/gnu/test-snprintf-posix.c b/tests/gnu/test-snprintf-posix.c
new file mode 100755
index 00000000..452e90ce
--- /dev/null
+++ b/tests/gnu/test-snprintf-posix.c
@@ -0,0 +1,38 @@
+/* Test of POSIX compatible snprintf() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <float.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+#include "test-snprintf-posix.h"
+
+int
+main (int argc, char *argv[])
+{
+  test_function (snprintf);
+  return 0;
+}
diff --git a/tests/gnu/test-snprintf-posix.h b/tests/gnu/test-snprintf-posix.h
new file mode 100755
index 00000000..b796d5ba
--- /dev/null
+++ b/tests/gnu/test-snprintf-posix.h
@@ -0,0 +1,3113 @@
+/* Test of POSIX compatible vsnprintf() and snprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include "nan.h"
+
+/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0.  */
+static int
+have_minus_zero ()
+{
+  static double plus_zero = 0.0;
+  double minus_zero = - plus_zero;
+  return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
+}
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zerod instead.  */
+double zerod = 0.0;
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zerol instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zerol (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zerol compute_minus_zerol ()
+#else
+long double minus_zerol = -0.0L;
+#endif
+
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+   of 'unsigned int' words.  */
+#ifdef WORDS_BIGENDIAN
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+      ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+      (unsigned int) (mantlo) << 16                                        \
+    }
+#else
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { mantlo, manthi, exponent }
+#endif
+
+static int
+strmatch (const char *pattern, const char *string)
+{
+  if (strlen (pattern) != strlen (string))
+    return 0;
+  for (; *pattern != '\0'; pattern++, string++)
+    if (*pattern != '*' && *string != *pattern)
+      return 0;
+  return 1;
+}
+
+/* Test whether string[start_index..end_index-1] is a valid textual
+   representation of NaN.  */
+static int
+strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
+{
+  if (start_index < end_index)
+    {
+      if (string[start_index] == '-')
+        start_index++;
+      if (start_index + 3 <= end_index
+          && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
+        {
+          start_index += 3;
+          if (start_index == end_index
+              || (string[start_index] == '(' && string[end_index - 1] == ')'))
+            return 1;
+        }
+    }
+  return 0;
+}
+
+static void
+test_function (int (*my_snprintf) (char *, size_t, const char *, ...))
+{
+  char buf[8];
+  int size;
+
+  /* Test return value convention.  */
+
+  for (size = 0; size <= 8; size++)
+    {
+      int retval;
+
+      memcpy (buf, "DEADBEEF", 8);
+      retval = my_snprintf (buf, size, "%d", 12345);
+      ASSERT (retval == 5);
+      if (size < 6)
+        {
+          if (size > 0)
+            {
+              ASSERT (memcmp (buf, "12345", size - 1) == 0);
+              ASSERT (buf[size - 1] == '\0');
+            }
+          ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+        }
+      else
+        {
+          ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
+        }
+    }
+
+  /* Test support of size specifiers as in C99.  */
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
+    ASSERT (strcmp (result, "12345671 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%zu %d", (size_t) 12345672, 33, 44, 55);
+    ASSERT (strcmp (result, "12345672 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
+    ASSERT (strcmp (result, "12345673 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", (long double) 1.5, 33, 44, 55);
+    ASSERT (strcmp (result, "1.5 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", 3.1416015625, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%A %d", -3.1416015625, 33, 44, 55);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%a %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding near the decimal point.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.0a %d", 1.5, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 0.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.0a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 1.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.1a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 2.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 3.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.3a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.3a %d", 1.49999, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.1a %d", 1.999, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Large precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.50a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#a %d", 1.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010a %d", 1.0 / 0.0, 33, 44, 55);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050a %d", NaNd (), 33, 44, 55);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", 3.1416015625L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LA %d", -3.1416015625L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Rounding near the decimal point.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.0La %d", 1.5L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 0.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.0La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 1.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.1La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 2.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 3.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.3La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.3La %d", 1.49999L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
+       glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.1La %d", 1.999L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Large precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.50La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#La %d", 1.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010La %d", 1.0L / 0.0L, 33, 44, 55);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050La %d", NaNl (), 33, 44, 55);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %f format directive.  */
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "0.000000" },
+        { 1.234321234321234e-36, "0.000000" },
+        { 1.234321234321234e-35, "0.000000" },
+        { 1.234321234321234e-34, "0.000000" },
+        { 1.234321234321234e-33, "0.000000" },
+        { 1.234321234321234e-32, "0.000000" },
+        { 1.234321234321234e-31, "0.000000" },
+        { 1.234321234321234e-30, "0.000000" },
+        { 1.234321234321234e-29, "0.000000" },
+        { 1.234321234321234e-28, "0.000000" },
+        { 1.234321234321234e-27, "0.000000" },
+        { 1.234321234321234e-26, "0.000000" },
+        { 1.234321234321234e-25, "0.000000" },
+        { 1.234321234321234e-24, "0.000000" },
+        { 1.234321234321234e-23, "0.000000" },
+        { 1.234321234321234e-22, "0.000000" },
+        { 1.234321234321234e-21, "0.000000" },
+        { 1.234321234321234e-20, "0.000000" },
+        { 1.234321234321234e-19, "0.000000" },
+        { 1.234321234321234e-18, "0.000000" },
+        { 1.234321234321234e-17, "0.000000" },
+        { 1.234321234321234e-16, "0.000000" },
+        { 1.234321234321234e-15, "0.000000" },
+        { 1.234321234321234e-14, "0.000000" },
+        { 1.234321234321234e-13, "0.000000" },
+        { 1.234321234321234e-12, "0.000000" },
+        { 1.234321234321234e-11, "0.000000" },
+        { 1.234321234321234e-10, "0.000000" },
+        { 1.234321234321234e-9, "0.000000" },
+        { 1.234321234321234e-8, "0.000000" },
+        { 1.234321234321234e-7, "0.000000" },
+        { 1.234321234321234e-6, "0.000001" },
+        { 1.234321234321234e-5, "0.000012" },
+        { 1.234321234321234e-4, "0.000123" },
+        { 1.234321234321234e-3, "0.001234" },
+        { 1.234321234321234e-2, "0.012343" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.234321" },
+        { 1.234321234321234e1, "12.343212" },
+        { 1.234321234321234e2, "123.432123" },
+        { 1.234321234321234e3, "1234.321234" },
+        { 1.234321234321234e4, "12343.212343" },
+        { 1.234321234321234e5, "123432.123432" },
+        { 1.234321234321234e6, "1234321.234321" },
+        { 1.234321234321234e7, "12343212.343212" },
+        { 1.234321234321234e8, "123432123.432123" },
+        { 1.234321234321234e9, "1234321234.321234" },
+        { 1.234321234321234e10, "12343212343.2123**" },
+        { 1.234321234321234e11, "123432123432.123***" },
+        { 1.234321234321234e12, "1234321234321.23****" },
+        { 1.234321234321234e13, "12343212343212.3*****" },
+        { 1.234321234321234e14, "123432123432123.******" },
+        { 1.234321234321234e15, "1234321234321234.000000" },
+        { 1.234321234321234e16, "123432123432123**.000000" },
+        { 1.234321234321234e17, "123432123432123***.000000" },
+        { 1.234321234321234e18, "123432123432123****.000000" },
+        { 1.234321234321234e19, "123432123432123*****.000000" },
+        { 1.234321234321234e20, "123432123432123******.000000" },
+        { 1.234321234321234e21, "123432123432123*******.000000" },
+        { 1.234321234321234e22, "123432123432123********.000000" },
+        { 1.234321234321234e23, "123432123432123*********.000000" },
+        { 1.234321234321234e24, "123432123432123**********.000000" },
+        { 1.234321234321234e25, "123432123432123***********.000000" },
+        { 1.234321234321234e26, "123432123432123************.000000" },
+        { 1.234321234321234e27, "123432123432123*************.000000" },
+        { 1.234321234321234e28, "123432123432123**************.000000" },
+        { 1.234321234321234e29, "123432123432123***************.000000" },
+        { 1.234321234321234e30, "123432123432123****************.000000" },
+        { 1.234321234321234e31, "123432123432123*****************.000000" },
+        { 1.234321234321234e32, "123432123432123******************.000000" },
+        { 1.234321234321234e33, "123432123432123*******************.000000" },
+        { 1.234321234321234e34, "123432123432123********************.000000" },
+        { 1.234321234321234e35, "123432123432123*********************.000000" },
+        { 1.234321234321234e36, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%f", data[k].value);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%f %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015f %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050f %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.f %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2f %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2f %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "0.000000" },
+        { 1.234321234321234e-36L, "0.000000" },
+        { 1.234321234321234e-35L, "0.000000" },
+        { 1.234321234321234e-34L, "0.000000" },
+        { 1.234321234321234e-33L, "0.000000" },
+        { 1.234321234321234e-32L, "0.000000" },
+        { 1.234321234321234e-31L, "0.000000" },
+        { 1.234321234321234e-30L, "0.000000" },
+        { 1.234321234321234e-29L, "0.000000" },
+        { 1.234321234321234e-28L, "0.000000" },
+        { 1.234321234321234e-27L, "0.000000" },
+        { 1.234321234321234e-26L, "0.000000" },
+        { 1.234321234321234e-25L, "0.000000" },
+        { 1.234321234321234e-24L, "0.000000" },
+        { 1.234321234321234e-23L, "0.000000" },
+        { 1.234321234321234e-22L, "0.000000" },
+        { 1.234321234321234e-21L, "0.000000" },
+        { 1.234321234321234e-20L, "0.000000" },
+        { 1.234321234321234e-19L, "0.000000" },
+        { 1.234321234321234e-18L, "0.000000" },
+        { 1.234321234321234e-17L, "0.000000" },
+        { 1.234321234321234e-16L, "0.000000" },
+        { 1.234321234321234e-15L, "0.000000" },
+        { 1.234321234321234e-14L, "0.000000" },
+        { 1.234321234321234e-13L, "0.000000" },
+        { 1.234321234321234e-12L, "0.000000" },
+        { 1.234321234321234e-11L, "0.000000" },
+        { 1.234321234321234e-10L, "0.000000" },
+        { 1.234321234321234e-9L, "0.000000" },
+        { 1.234321234321234e-8L, "0.000000" },
+        { 1.234321234321234e-7L, "0.000000" },
+        { 1.234321234321234e-6L, "0.000001" },
+        { 1.234321234321234e-5L, "0.000012" },
+        { 1.234321234321234e-4L, "0.000123" },
+        { 1.234321234321234e-3L, "0.001234" },
+        { 1.234321234321234e-2L, "0.012343" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.234321" },
+        { 1.234321234321234e1L, "12.343212" },
+        { 1.234321234321234e2L, "123.432123" },
+        { 1.234321234321234e3L, "1234.321234" },
+        { 1.234321234321234e4L, "12343.212343" },
+        { 1.234321234321234e5L, "123432.123432" },
+        { 1.234321234321234e6L, "1234321.234321" },
+        { 1.234321234321234e7L, "12343212.343212" },
+        { 1.234321234321234e8L, "123432123.432123" },
+        { 1.234321234321234e9L, "1234321234.321234" },
+        { 1.234321234321234e10L, "12343212343.2123**" },
+        { 1.234321234321234e11L, "123432123432.123***" },
+        { 1.234321234321234e12L, "1234321234321.23****" },
+        { 1.234321234321234e13L, "12343212343212.3*****" },
+        { 1.234321234321234e14L, "123432123432123.******" },
+        { 1.234321234321234e15L, "1234321234321234.000000" },
+        { 1.234321234321234e16L, "123432123432123**.000000" },
+        { 1.234321234321234e17L, "123432123432123***.000000" },
+        { 1.234321234321234e18L, "123432123432123****.000000" },
+        { 1.234321234321234e19L, "123432123432123*****.000000" },
+        { 1.234321234321234e20L, "123432123432123******.000000" },
+        { 1.234321234321234e21L, "123432123432123*******.000000" },
+        { 1.234321234321234e22L, "123432123432123********.000000" },
+        { 1.234321234321234e23L, "123432123432123*********.000000" },
+        { 1.234321234321234e24L, "123432123432123**********.000000" },
+        { 1.234321234321234e25L, "123432123432123***********.000000" },
+        { 1.234321234321234e26L, "123432123432123************.000000" },
+        { 1.234321234321234e27L, "123432123432123*************.000000" },
+        { 1.234321234321234e28L, "123432123432123**************.000000" },
+        { 1.234321234321234e29L, "123432123432123***************.000000" },
+        { 1.234321234321234e30L, "123432123432123****************.000000" },
+        { 1.234321234321234e31L, "123432123432123*****************.000000" },
+        { 1.234321234321234e32L, "123432123432123******************.000000" },
+        { 1.234321234321234e33L, "123432123432123*******************.000000" },
+        { 1.234321234321234e34L, "123432123432123********************.000000" },
+        { 1.234321234321234e35L, "123432123432123*********************.000000" },
+        { 1.234321234321234e36L, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%Lf", data[k].value);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2Lf %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2Lf %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %F format directive.  */
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%F %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015F %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.F %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2F %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2F %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%LF %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2LF %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.2LF %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %e format directive.  */
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.234321e-37" },
+        { 1.234321234321234e-36, "1.234321e-36" },
+        { 1.234321234321234e-35, "1.234321e-35" },
+        { 1.234321234321234e-34, "1.234321e-34" },
+        { 1.234321234321234e-33, "1.234321e-33" },
+        { 1.234321234321234e-32, "1.234321e-32" },
+        { 1.234321234321234e-31, "1.234321e-31" },
+        { 1.234321234321234e-30, "1.234321e-30" },
+        { 1.234321234321234e-29, "1.234321e-29" },
+        { 1.234321234321234e-28, "1.234321e-28" },
+        { 1.234321234321234e-27, "1.234321e-27" },
+        { 1.234321234321234e-26, "1.234321e-26" },
+        { 1.234321234321234e-25, "1.234321e-25" },
+        { 1.234321234321234e-24, "1.234321e-24" },
+        { 1.234321234321234e-23, "1.234321e-23" },
+        { 1.234321234321234e-22, "1.234321e-22" },
+        { 1.234321234321234e-21, "1.234321e-21" },
+        { 1.234321234321234e-20, "1.234321e-20" },
+        { 1.234321234321234e-19, "1.234321e-19" },
+        { 1.234321234321234e-18, "1.234321e-18" },
+        { 1.234321234321234e-17, "1.234321e-17" },
+        { 1.234321234321234e-16, "1.234321e-16" },
+        { 1.234321234321234e-15, "1.234321e-15" },
+        { 1.234321234321234e-14, "1.234321e-14" },
+        { 1.234321234321234e-13, "1.234321e-13" },
+        { 1.234321234321234e-12, "1.234321e-12" },
+        { 1.234321234321234e-11, "1.234321e-11" },
+        { 1.234321234321234e-10, "1.234321e-10" },
+        { 1.234321234321234e-9, "1.234321e-09" },
+        { 1.234321234321234e-8, "1.234321e-08" },
+        { 1.234321234321234e-7, "1.234321e-07" },
+        { 1.234321234321234e-6, "1.234321e-06" },
+        { 1.234321234321234e-5, "1.234321e-05" },
+        { 1.234321234321234e-4, "1.234321e-04" },
+        { 1.234321234321234e-3, "1.234321e-03" },
+        { 1.234321234321234e-2, "1.234321e-02" },
+        { 1.234321234321234e-1, "1.234321e-01" },
+        { 1.234321234321234, "1.234321e+00" },
+        { 1.234321234321234e1, "1.234321e+01" },
+        { 1.234321234321234e2, "1.234321e+02" },
+        { 1.234321234321234e3, "1.234321e+03" },
+        { 1.234321234321234e4, "1.234321e+04" },
+        { 1.234321234321234e5, "1.234321e+05" },
+        { 1.234321234321234e6, "1.234321e+06" },
+        { 1.234321234321234e7, "1.234321e+07" },
+        { 1.234321234321234e8, "1.234321e+08" },
+        { 1.234321234321234e9, "1.234321e+09" },
+        { 1.234321234321234e10, "1.234321e+10" },
+        { 1.234321234321234e11, "1.234321e+11" },
+        { 1.234321234321234e12, "1.234321e+12" },
+        { 1.234321234321234e13, "1.234321e+13" },
+        { 1.234321234321234e14, "1.234321e+14" },
+        { 1.234321234321234e15, "1.234321e+15" },
+        { 1.234321234321234e16, "1.234321e+16" },
+        { 1.234321234321234e17, "1.234321e+17" },
+        { 1.234321234321234e18, "1.234321e+18" },
+        { 1.234321234321234e19, "1.234321e+19" },
+        { 1.234321234321234e20, "1.234321e+20" },
+        { 1.234321234321234e21, "1.234321e+21" },
+        { 1.234321234321234e22, "1.234321e+22" },
+        { 1.234321234321234e23, "1.234321e+23" },
+        { 1.234321234321234e24, "1.234321e+24" },
+        { 1.234321234321234e25, "1.234321e+25" },
+        { 1.234321234321234e26, "1.234321e+26" },
+        { 1.234321234321234e27, "1.234321e+27" },
+        { 1.234321234321234e28, "1.234321e+28" },
+        { 1.234321234321234e29, "1.234321e+29" },
+        { 1.234321234321234e30, "1.234321e+30" },
+        { 1.234321234321234e31, "1.234321e+31" },
+        { 1.234321234321234e32, "1.234321e+32" },
+        { 1.234321234321234e33, "1.234321e+33" },
+        { 1.234321234321234e34, "1.234321e+34" },
+        { 1.234321234321234e35, "1.234321e+35" },
+        { 1.234321234321234e36, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%e", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%e %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%15e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-15e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.e %d", 9.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015e %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050e %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.e %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4e %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4e %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.234321e-37" },
+        { 1.234321234321234e-36L, "1.234321e-36" },
+        { 1.234321234321234e-35L, "1.234321e-35" },
+        { 1.234321234321234e-34L, "1.234321e-34" },
+        { 1.234321234321234e-33L, "1.234321e-33" },
+        { 1.234321234321234e-32L, "1.234321e-32" },
+        { 1.234321234321234e-31L, "1.234321e-31" },
+        { 1.234321234321234e-30L, "1.234321e-30" },
+        { 1.234321234321234e-29L, "1.234321e-29" },
+        { 1.234321234321234e-28L, "1.234321e-28" },
+        { 1.234321234321234e-27L, "1.234321e-27" },
+        { 1.234321234321234e-26L, "1.234321e-26" },
+        { 1.234321234321234e-25L, "1.234321e-25" },
+        { 1.234321234321234e-24L, "1.234321e-24" },
+        { 1.234321234321234e-23L, "1.234321e-23" },
+        { 1.234321234321234e-22L, "1.234321e-22" },
+        { 1.234321234321234e-21L, "1.234321e-21" },
+        { 1.234321234321234e-20L, "1.234321e-20" },
+        { 1.234321234321234e-19L, "1.234321e-19" },
+        { 1.234321234321234e-18L, "1.234321e-18" },
+        { 1.234321234321234e-17L, "1.234321e-17" },
+        { 1.234321234321234e-16L, "1.234321e-16" },
+        { 1.234321234321234e-15L, "1.234321e-15" },
+        { 1.234321234321234e-14L, "1.234321e-14" },
+        { 1.234321234321234e-13L, "1.234321e-13" },
+        { 1.234321234321234e-12L, "1.234321e-12" },
+        { 1.234321234321234e-11L, "1.234321e-11" },
+        { 1.234321234321234e-10L, "1.234321e-10" },
+        { 1.234321234321234e-9L, "1.234321e-09" },
+        { 1.234321234321234e-8L, "1.234321e-08" },
+        { 1.234321234321234e-7L, "1.234321e-07" },
+        { 1.234321234321234e-6L, "1.234321e-06" },
+        { 1.234321234321234e-5L, "1.234321e-05" },
+        { 1.234321234321234e-4L, "1.234321e-04" },
+        { 1.234321234321234e-3L, "1.234321e-03" },
+        { 1.234321234321234e-2L, "1.234321e-02" },
+        { 1.234321234321234e-1L, "1.234321e-01" },
+        { 1.234321234321234L, "1.234321e+00" },
+        { 1.234321234321234e1L, "1.234321e+01" },
+        { 1.234321234321234e2L, "1.234321e+02" },
+        { 1.234321234321234e3L, "1.234321e+03" },
+        { 1.234321234321234e4L, "1.234321e+04" },
+        { 1.234321234321234e5L, "1.234321e+05" },
+        { 1.234321234321234e6L, "1.234321e+06" },
+        { 1.234321234321234e7L, "1.234321e+07" },
+        { 1.234321234321234e8L, "1.234321e+08" },
+        { 1.234321234321234e9L, "1.234321e+09" },
+        { 1.234321234321234e10L, "1.234321e+10" },
+        { 1.234321234321234e11L, "1.234321e+11" },
+        { 1.234321234321234e12L, "1.234321e+12" },
+        { 1.234321234321234e13L, "1.234321e+13" },
+        { 1.234321234321234e14L, "1.234321e+14" },
+        { 1.234321234321234e15L, "1.234321e+15" },
+        { 1.234321234321234e16L, "1.234321e+16" },
+        { 1.234321234321234e17L, "1.234321e+17" },
+        { 1.234321234321234e18L, "1.234321e+18" },
+        { 1.234321234321234e19L, "1.234321e+19" },
+        { 1.234321234321234e20L, "1.234321e+20" },
+        { 1.234321234321234e21L, "1.234321e+21" },
+        { 1.234321234321234e22L, "1.234321e+22" },
+        { 1.234321234321234e23L, "1.234321e+23" },
+        { 1.234321234321234e24L, "1.234321e+24" },
+        { 1.234321234321234e25L, "1.234321e+25" },
+        { 1.234321234321234e26L, "1.234321e+26" },
+        { 1.234321234321234e27L, "1.234321e+27" },
+        { 1.234321234321234e28L, "1.234321e+28" },
+        { 1.234321234321234e29L, "1.234321e+29" },
+        { 1.234321234321234e30L, "1.234321e+30" },
+        { 1.234321234321234e31L, "1.234321e+31" },
+        { 1.234321234321234e32L, "1.234321e+32" },
+        { 1.234321234321234e33L, "1.234321e+33" },
+        { 1.234321234321234e34L, "1.234321e+34" },
+        { 1.234321234321234e35L, "1.234321e+35" },
+        { 1.234321234321234e36L, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%Le", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.Le %d", 9.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050Le %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4Le %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4Le %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %g format directive.  */
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.23432e-37" },
+        { 1.234321234321234e-36, "1.23432e-36" },
+        { 1.234321234321234e-35, "1.23432e-35" },
+        { 1.234321234321234e-34, "1.23432e-34" },
+        { 1.234321234321234e-33, "1.23432e-33" },
+        { 1.234321234321234e-32, "1.23432e-32" },
+        { 1.234321234321234e-31, "1.23432e-31" },
+        { 1.234321234321234e-30, "1.23432e-30" },
+        { 1.234321234321234e-29, "1.23432e-29" },
+        { 1.234321234321234e-28, "1.23432e-28" },
+        { 1.234321234321234e-27, "1.23432e-27" },
+        { 1.234321234321234e-26, "1.23432e-26" },
+        { 1.234321234321234e-25, "1.23432e-25" },
+        { 1.234321234321234e-24, "1.23432e-24" },
+        { 1.234321234321234e-23, "1.23432e-23" },
+        { 1.234321234321234e-22, "1.23432e-22" },
+        { 1.234321234321234e-21, "1.23432e-21" },
+        { 1.234321234321234e-20, "1.23432e-20" },
+        { 1.234321234321234e-19, "1.23432e-19" },
+        { 1.234321234321234e-18, "1.23432e-18" },
+        { 1.234321234321234e-17, "1.23432e-17" },
+        { 1.234321234321234e-16, "1.23432e-16" },
+        { 1.234321234321234e-15, "1.23432e-15" },
+        { 1.234321234321234e-14, "1.23432e-14" },
+        { 1.234321234321234e-13, "1.23432e-13" },
+        { 1.234321234321234e-12, "1.23432e-12" },
+        { 1.234321234321234e-11, "1.23432e-11" },
+        { 1.234321234321234e-10, "1.23432e-10" },
+        { 1.234321234321234e-9, "1.23432e-09" },
+        { 1.234321234321234e-8, "1.23432e-08" },
+        { 1.234321234321234e-7, "1.23432e-07" },
+        { 1.234321234321234e-6, "1.23432e-06" },
+        { 1.234321234321234e-5, "1.23432e-05" },
+        { 1.234321234321234e-4, "0.000123432" },
+        { 1.234321234321234e-3, "0.00123432" },
+        { 1.234321234321234e-2, "0.0123432" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.23432" },
+        { 1.234321234321234e1, "12.3432" },
+        { 1.234321234321234e2, "123.432" },
+        { 1.234321234321234e3, "1234.32" },
+        { 1.234321234321234e4, "12343.2" },
+        { 1.234321234321234e5, "123432" },
+        { 1.234321234321234e6, "1.23432e+06" },
+        { 1.234321234321234e7, "1.23432e+07" },
+        { 1.234321234321234e8, "1.23432e+08" },
+        { 1.234321234321234e9, "1.23432e+09" },
+        { 1.234321234321234e10, "1.23432e+10" },
+        { 1.234321234321234e11, "1.23432e+11" },
+        { 1.234321234321234e12, "1.23432e+12" },
+        { 1.234321234321234e13, "1.23432e+13" },
+        { 1.234321234321234e14, "1.23432e+14" },
+        { 1.234321234321234e15, "1.23432e+15" },
+        { 1.234321234321234e16, "1.23432e+16" },
+        { 1.234321234321234e17, "1.23432e+17" },
+        { 1.234321234321234e18, "1.23432e+18" },
+        { 1.234321234321234e19, "1.23432e+19" },
+        { 1.234321234321234e20, "1.23432e+20" },
+        { 1.234321234321234e21, "1.23432e+21" },
+        { 1.234321234321234e22, "1.23432e+22" },
+        { 1.234321234321234e23, "1.23432e+23" },
+        { 1.234321234321234e24, "1.23432e+24" },
+        { 1.234321234321234e25, "1.23432e+25" },
+        { 1.234321234321234e26, "1.23432e+26" },
+        { 1.234321234321234e27, "1.23432e+27" },
+        { 1.234321234321234e28, "1.23432e+28" },
+        { 1.234321234321234e29, "1.23432e+29" },
+        { 1.234321234321234e30, "1.23432e+30" },
+        { 1.234321234321234e31, "1.23432e+31" },
+        { 1.234321234321234e32, "1.23432e+32" },
+        { 1.234321234321234e33, "1.23432e+33" },
+        { 1.234321234321234e34, "1.23432e+34" },
+        { 1.234321234321234e35, "1.23432e+35" },
+        { 1.234321234321234e36, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%g", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%g %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.g %d", 9.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010g %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050g %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.g %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.5g %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.5g %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.23432e-37" },
+        { 1.234321234321234e-36L, "1.23432e-36" },
+        { 1.234321234321234e-35L, "1.23432e-35" },
+        { 1.234321234321234e-34L, "1.23432e-34" },
+        { 1.234321234321234e-33L, "1.23432e-33" },
+        { 1.234321234321234e-32L, "1.23432e-32" },
+        { 1.234321234321234e-31L, "1.23432e-31" },
+        { 1.234321234321234e-30L, "1.23432e-30" },
+        { 1.234321234321234e-29L, "1.23432e-29" },
+        { 1.234321234321234e-28L, "1.23432e-28" },
+        { 1.234321234321234e-27L, "1.23432e-27" },
+        { 1.234321234321234e-26L, "1.23432e-26" },
+        { 1.234321234321234e-25L, "1.23432e-25" },
+        { 1.234321234321234e-24L, "1.23432e-24" },
+        { 1.234321234321234e-23L, "1.23432e-23" },
+        { 1.234321234321234e-22L, "1.23432e-22" },
+        { 1.234321234321234e-21L, "1.23432e-21" },
+        { 1.234321234321234e-20L, "1.23432e-20" },
+        { 1.234321234321234e-19L, "1.23432e-19" },
+        { 1.234321234321234e-18L, "1.23432e-18" },
+        { 1.234321234321234e-17L, "1.23432e-17" },
+        { 1.234321234321234e-16L, "1.23432e-16" },
+        { 1.234321234321234e-15L, "1.23432e-15" },
+        { 1.234321234321234e-14L, "1.23432e-14" },
+        { 1.234321234321234e-13L, "1.23432e-13" },
+        { 1.234321234321234e-12L, "1.23432e-12" },
+        { 1.234321234321234e-11L, "1.23432e-11" },
+        { 1.234321234321234e-10L, "1.23432e-10" },
+        { 1.234321234321234e-9L, "1.23432e-09" },
+        { 1.234321234321234e-8L, "1.23432e-08" },
+        { 1.234321234321234e-7L, "1.23432e-07" },
+        { 1.234321234321234e-6L, "1.23432e-06" },
+        { 1.234321234321234e-5L, "1.23432e-05" },
+        { 1.234321234321234e-4L, "0.000123432" },
+        { 1.234321234321234e-3L, "0.00123432" },
+        { 1.234321234321234e-2L, "0.0123432" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.23432" },
+        { 1.234321234321234e1L, "12.3432" },
+        { 1.234321234321234e2L, "123.432" },
+        { 1.234321234321234e3L, "1234.32" },
+        { 1.234321234321234e4L, "12343.2" },
+        { 1.234321234321234e5L, "123432" },
+        { 1.234321234321234e6L, "1.23432e+06" },
+        { 1.234321234321234e7L, "1.23432e+07" },
+        { 1.234321234321234e8L, "1.23432e+08" },
+        { 1.234321234321234e9L, "1.23432e+09" },
+        { 1.234321234321234e10L, "1.23432e+10" },
+        { 1.234321234321234e11L, "1.23432e+11" },
+        { 1.234321234321234e12L, "1.23432e+12" },
+        { 1.234321234321234e13L, "1.23432e+13" },
+        { 1.234321234321234e14L, "1.23432e+14" },
+        { 1.234321234321234e15L, "1.23432e+15" },
+        { 1.234321234321234e16L, "1.23432e+16" },
+        { 1.234321234321234e17L, "1.23432e+17" },
+        { 1.234321234321234e18L, "1.23432e+18" },
+        { 1.234321234321234e19L, "1.23432e+19" },
+        { 1.234321234321234e20L, "1.23432e+20" },
+        { 1.234321234321234e21L, "1.23432e+21" },
+        { 1.234321234321234e22L, "1.23432e+22" },
+        { 1.234321234321234e23L, "1.23432e+23" },
+        { 1.234321234321234e24L, "1.23432e+24" },
+        { 1.234321234321234e25L, "1.23432e+25" },
+        { 1.234321234321234e26L, "1.23432e+26" },
+        { 1.234321234321234e27L, "1.23432e+27" },
+        { 1.234321234321234e28L, "1.23432e+28" },
+        { 1.234321234321234e29L, "1.23432e+29" },
+        { 1.234321234321234e30L, "1.23432e+30" },
+        { 1.234321234321234e31L, "1.23432e+31" },
+        { 1.234321234321234e32L, "1.23432e+32" },
+        { 1.234321234321234e33L, "1.23432e+33" },
+        { 1.234321234321234e34L, "1.23432e+34" },
+        { 1.234321234321234e35L, "1.23432e+35" },
+        { 1.234321234321234e36L, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[100];
+        int retval =
+          my_snprintf (result, sizeof (result), "%Lg", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%-10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%+Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "% Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.Lg %d", 9.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%010Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%050Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.5Lg %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.5Lg %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %n format directive.  */
+
+  {
+    int count = -1;
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%d %n", 123, &count, 33, 44, 55);
+    ASSERT (strcmp (result, "123 ") == 0);
+    ASSERT (retval == strlen (result));
+    ASSERT (count == 4);
+  }
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%2$d %1$d", 33, 55);
+    ASSERT (strcmp (result, "55 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the grouping flag.  */
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "%'d %d", 1234567, 99);
+    ASSERT (result[strlen (result) - 1] == '9');
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the left-adjust flag.  */
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "a%*sc", -3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "a%-*sc", 3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[100];
+    int retval =
+      my_snprintf (result, sizeof (result), "a%-*sc", -3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of large precision.  */
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000d %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.*d %d", 4000, 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000d %d", -1234567, 99);
+    size_t i;
+    ASSERT (result[0] == '-');
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[1 + i] == '0');
+    ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000u %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000o %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%.4000x %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_snprintf (result, sizeof (result), "%#.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result[0] == '0');
+    ASSERT (result[1] == 'x');
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char input[5000];
+    char result[5000];
+    int retval;
+    size_t i;
+
+    for (i = 0; i < sizeof (input) - 1; i++)
+      input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+    input[i] = '\0';
+    retval = my_snprintf (result, sizeof (result), "%.4000s %d", input, 99);
+    ASSERT (memcmp (result, input, 4000) == 0);
+    ASSERT (strcmp (result + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %s format directive.  */
+
+  /* To verify that these tests succeed, it is necessary to run them under
+     a tool that checks against invalid memory accesses, such as ElectricFence
+     or "valgrind --tool=memcheck".  */
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        char *block;
+        char result[5000];
+        int retval;
+
+        block = (char *) malloc (i);
+        memcpy (block, "abcdefgh", i);
+        retval = my_snprintf (result, sizeof (result), "%.*s", (int) i, block);
+        ASSERT (memcmp (result, block, i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (block);
+      }
+  }
+#if HAVE_WCHAR_T
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        wchar_t *block;
+        size_t j;
+        char result[5000];
+        int retval;
+
+        block = (wchar_t *) malloc (i * sizeof (wchar_t));
+        for (j = 0; j < i; j++)
+          block[j] = "abcdefgh"[j];
+        retval = my_snprintf (result, sizeof (result), "%.*ls", (int) i, block);
+        ASSERT (memcmp (result, "abcdefgh", i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (block);
+      }
+  }
+#endif
+}
diff --git a/tests/gnu/test-snprintf.c b/tests/gnu/test-snprintf.c
new file mode 100755
index 00000000..62a411bf
--- /dev/null
+++ b/tests/gnu/test-snprintf.c
@@ -0,0 +1,64 @@
+/* Test of snprintf() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (snprintf, int, (char *, size_t, char const *, ...));
+
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  char buf[8];
+  int size;
+  int retval;
+
+  for (size = 0; size <= 8; size++)
+    {
+      memcpy (buf, "DEADBEEF", 8);
+      retval = snprintf (buf, size, "%d", 12345);
+      if (size < 6)
+        {
+#if CHECK_SNPRINTF_POSIX
+          ASSERT (retval < 0 || retval >= size);
+#endif
+          if (size > 0)
+            {
+              ASSERT (memcmp (buf, "12345", size - 1) == 0);
+              ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size);
+            }
+#if !CHECK_SNPRINTF_POSIX
+          if (size > 0)
+#endif
+            ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+        }
+      else
+        {
+          ASSERT (retval == 5);
+          ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
+        }
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-spawn.c b/tests/gnu/test-spawn.c
new file mode 100755
index 00000000..dc6b0a8e
--- /dev/null
+++ b/tests/gnu/test-spawn.c
@@ -0,0 +1,54 @@
+/* Test of <spawn.h> substitute.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <spawn.h>
+
+/* Check for existence of required types.  */
+struct check
+{
+  posix_spawnattr_t a;
+  posix_spawn_file_actions_t b;
+  mode_t c;
+  pid_t d;
+  sigset_t e;
+} s;
+
+/* struct sched_param is allowed to be an incomplete type without
+   <sched.h>, but must have a forward declaration to avoid a
+   compilation error in the following usage.  */
+extern void f (struct sched_param *g);
+#include <sched.h>
+extern void f (struct sched_param *g);
+
+int
+main (void)
+{
+  switch (0)
+    {
+    case POSIX_SPAWN_RESETIDS:
+    case POSIX_SPAWN_SETPGROUP:
+    case POSIX_SPAWN_SETSIGDEF:
+    case POSIX_SPAWN_SETSIGMASK:
+    case POSIX_SPAWN_SETSCHEDPARAM:
+    case POSIX_SPAWN_SETSCHEDULER:
+      ;
+    }
+  return s.c + s.d;
+}
diff --git a/tests/gnu/test-sprintf-posix.c b/tests/gnu/test-sprintf-posix.c
new file mode 100755
index 00000000..db943da2
--- /dev/null
+++ b/tests/gnu/test-sprintf-posix.c
@@ -0,0 +1,41 @@
+/* Test of POSIX compatible sprintf() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (sprintf, int, (char *, char const *, ...));
+
+#include <float.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+#include "test-sprintf-posix.h"
+
+int
+main (int argc, char *argv[])
+{
+  test_function (sprintf);
+  return 0;
+}
diff --git a/tests/gnu/test-sprintf-posix.h b/tests/gnu/test-sprintf-posix.h
new file mode 100755
index 00000000..a50e57ca
--- /dev/null
+++ b/tests/gnu/test-sprintf-posix.h
@@ -0,0 +1,3099 @@
+/* Test of POSIX compatible vsprintf() and sprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include "nan.h"
+
+/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0.  */
+static int
+have_minus_zero ()
+{
+  static double plus_zero = 0.0;
+  double minus_zero = - plus_zero;
+  return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
+}
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zerod instead.  */
+double zerod = 0.0;
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zerol instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zerol (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zerol compute_minus_zerol ()
+#else
+long double minus_zerol = -0.0L;
+#endif
+
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+   of 'unsigned int' words.  */
+#ifdef WORDS_BIGENDIAN
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+      ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+      (unsigned int) (mantlo) << 16                                        \
+    }
+#else
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { mantlo, manthi, exponent }
+#endif
+
+static int
+strmatch (const char *pattern, const char *string)
+{
+  if (strlen (pattern) != strlen (string))
+    return 0;
+  for (; *pattern != '\0'; pattern++, string++)
+    if (*pattern != '*' && *string != *pattern)
+      return 0;
+  return 1;
+}
+
+/* Test whether string[start_index..end_index-1] is a valid textual
+   representation of NaN.  */
+static int
+strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
+{
+  if (start_index < end_index)
+    {
+      if (string[start_index] == '-')
+        start_index++;
+      if (start_index + 3 <= end_index
+          && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
+        {
+          start_index += 3;
+          if (start_index == end_index
+              || (string[start_index] == '(' && string[end_index - 1] == ')'))
+            return 1;
+        }
+    }
+  return 0;
+}
+
+static void
+test_function (int (*my_sprintf) (char *, const char *, ...))
+{
+  char buf[8];
+
+  /* Test return value convention.  */
+
+  {
+    int retval;
+
+    memcpy (buf, "DEADBEEF", 8);
+    retval = my_sprintf (buf, "%d", 12345);
+    ASSERT (retval == 5);
+    ASSERT (memcmp (buf, "12345\0EF", 8) == 0);
+  }
+
+  /* Test support of size specifiers as in C99.  */
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
+    ASSERT (strcmp (result, "12345671 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%zu %d", (size_t) 12345672, 33, 44, 55);
+    ASSERT (strcmp (result, "12345672 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
+    ASSERT (strcmp (result, "12345673 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", (long double) 1.5, 33, 44, 55);
+    ASSERT (strcmp (result, "1.5 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", 3.1416015625, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%A %d", -3.1416015625, 33, 44, 55);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%a %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding near the decimal point.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.0a %d", 1.5, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 0.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.0a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 1.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.1a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 2.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.2a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 3.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.3a %d", 1.51, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.3a %d", 1.49999, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.1a %d", 1.999, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Large precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.50a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#a %d", 1.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010a %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050a %d", NaNd (), 33, 44, 55);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", 3.1416015625L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LA %d", -3.1416015625L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Rounding near the decimal point.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.0La %d", 1.5L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 0.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.0La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 1.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.1La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 2.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.2La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding with precision 3.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.3La %d", 1.51L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.3La %d", 1.49999L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
+       glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.1La %d", 1.999L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Large precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.50La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#La %d", 1.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010La %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050La %d", NaNl (), 33, 44, 55);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %f format directive.  */
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "0.000000" },
+        { 1.234321234321234e-36, "0.000000" },
+        { 1.234321234321234e-35, "0.000000" },
+        { 1.234321234321234e-34, "0.000000" },
+        { 1.234321234321234e-33, "0.000000" },
+        { 1.234321234321234e-32, "0.000000" },
+        { 1.234321234321234e-31, "0.000000" },
+        { 1.234321234321234e-30, "0.000000" },
+        { 1.234321234321234e-29, "0.000000" },
+        { 1.234321234321234e-28, "0.000000" },
+        { 1.234321234321234e-27, "0.000000" },
+        { 1.234321234321234e-26, "0.000000" },
+        { 1.234321234321234e-25, "0.000000" },
+        { 1.234321234321234e-24, "0.000000" },
+        { 1.234321234321234e-23, "0.000000" },
+        { 1.234321234321234e-22, "0.000000" },
+        { 1.234321234321234e-21, "0.000000" },
+        { 1.234321234321234e-20, "0.000000" },
+        { 1.234321234321234e-19, "0.000000" },
+        { 1.234321234321234e-18, "0.000000" },
+        { 1.234321234321234e-17, "0.000000" },
+        { 1.234321234321234e-16, "0.000000" },
+        { 1.234321234321234e-15, "0.000000" },
+        { 1.234321234321234e-14, "0.000000" },
+        { 1.234321234321234e-13, "0.000000" },
+        { 1.234321234321234e-12, "0.000000" },
+        { 1.234321234321234e-11, "0.000000" },
+        { 1.234321234321234e-10, "0.000000" },
+        { 1.234321234321234e-9, "0.000000" },
+        { 1.234321234321234e-8, "0.000000" },
+        { 1.234321234321234e-7, "0.000000" },
+        { 1.234321234321234e-6, "0.000001" },
+        { 1.234321234321234e-5, "0.000012" },
+        { 1.234321234321234e-4, "0.000123" },
+        { 1.234321234321234e-3, "0.001234" },
+        { 1.234321234321234e-2, "0.012343" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.234321" },
+        { 1.234321234321234e1, "12.343212" },
+        { 1.234321234321234e2, "123.432123" },
+        { 1.234321234321234e3, "1234.321234" },
+        { 1.234321234321234e4, "12343.212343" },
+        { 1.234321234321234e5, "123432.123432" },
+        { 1.234321234321234e6, "1234321.234321" },
+        { 1.234321234321234e7, "12343212.343212" },
+        { 1.234321234321234e8, "123432123.432123" },
+        { 1.234321234321234e9, "1234321234.321234" },
+        { 1.234321234321234e10, "12343212343.2123**" },
+        { 1.234321234321234e11, "123432123432.123***" },
+        { 1.234321234321234e12, "1234321234321.23****" },
+        { 1.234321234321234e13, "12343212343212.3*****" },
+        { 1.234321234321234e14, "123432123432123.******" },
+        { 1.234321234321234e15, "1234321234321234.000000" },
+        { 1.234321234321234e16, "123432123432123**.000000" },
+        { 1.234321234321234e17, "123432123432123***.000000" },
+        { 1.234321234321234e18, "123432123432123****.000000" },
+        { 1.234321234321234e19, "123432123432123*****.000000" },
+        { 1.234321234321234e20, "123432123432123******.000000" },
+        { 1.234321234321234e21, "123432123432123*******.000000" },
+        { 1.234321234321234e22, "123432123432123********.000000" },
+        { 1.234321234321234e23, "123432123432123*********.000000" },
+        { 1.234321234321234e24, "123432123432123**********.000000" },
+        { 1.234321234321234e25, "123432123432123***********.000000" },
+        { 1.234321234321234e26, "123432123432123************.000000" },
+        { 1.234321234321234e27, "123432123432123*************.000000" },
+        { 1.234321234321234e28, "123432123432123**************.000000" },
+        { 1.234321234321234e29, "123432123432123***************.000000" },
+        { 1.234321234321234e30, "123432123432123****************.000000" },
+        { 1.234321234321234e31, "123432123432123*****************.000000" },
+        { 1.234321234321234e32, "123432123432123******************.000000" },
+        { 1.234321234321234e33, "123432123432123*******************.000000" },
+        { 1.234321234321234e34, "123432123432123********************.000000" },
+        { 1.234321234321234e35, "123432123432123*********************.000000" },
+        { 1.234321234321234e36, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%f", data[k].value);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%f %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.f %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015f %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050f %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.f %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2f %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2f %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "0.000000" },
+        { 1.234321234321234e-36L, "0.000000" },
+        { 1.234321234321234e-35L, "0.000000" },
+        { 1.234321234321234e-34L, "0.000000" },
+        { 1.234321234321234e-33L, "0.000000" },
+        { 1.234321234321234e-32L, "0.000000" },
+        { 1.234321234321234e-31L, "0.000000" },
+        { 1.234321234321234e-30L, "0.000000" },
+        { 1.234321234321234e-29L, "0.000000" },
+        { 1.234321234321234e-28L, "0.000000" },
+        { 1.234321234321234e-27L, "0.000000" },
+        { 1.234321234321234e-26L, "0.000000" },
+        { 1.234321234321234e-25L, "0.000000" },
+        { 1.234321234321234e-24L, "0.000000" },
+        { 1.234321234321234e-23L, "0.000000" },
+        { 1.234321234321234e-22L, "0.000000" },
+        { 1.234321234321234e-21L, "0.000000" },
+        { 1.234321234321234e-20L, "0.000000" },
+        { 1.234321234321234e-19L, "0.000000" },
+        { 1.234321234321234e-18L, "0.000000" },
+        { 1.234321234321234e-17L, "0.000000" },
+        { 1.234321234321234e-16L, "0.000000" },
+        { 1.234321234321234e-15L, "0.000000" },
+        { 1.234321234321234e-14L, "0.000000" },
+        { 1.234321234321234e-13L, "0.000000" },
+        { 1.234321234321234e-12L, "0.000000" },
+        { 1.234321234321234e-11L, "0.000000" },
+        { 1.234321234321234e-10L, "0.000000" },
+        { 1.234321234321234e-9L, "0.000000" },
+        { 1.234321234321234e-8L, "0.000000" },
+        { 1.234321234321234e-7L, "0.000000" },
+        { 1.234321234321234e-6L, "0.000001" },
+        { 1.234321234321234e-5L, "0.000012" },
+        { 1.234321234321234e-4L, "0.000123" },
+        { 1.234321234321234e-3L, "0.001234" },
+        { 1.234321234321234e-2L, "0.012343" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.234321" },
+        { 1.234321234321234e1L, "12.343212" },
+        { 1.234321234321234e2L, "123.432123" },
+        { 1.234321234321234e3L, "1234.321234" },
+        { 1.234321234321234e4L, "12343.212343" },
+        { 1.234321234321234e5L, "123432.123432" },
+        { 1.234321234321234e6L, "1234321.234321" },
+        { 1.234321234321234e7L, "12343212.343212" },
+        { 1.234321234321234e8L, "123432123.432123" },
+        { 1.234321234321234e9L, "1234321234.321234" },
+        { 1.234321234321234e10L, "12343212343.2123**" },
+        { 1.234321234321234e11L, "123432123432.123***" },
+        { 1.234321234321234e12L, "1234321234321.23****" },
+        { 1.234321234321234e13L, "12343212343212.3*****" },
+        { 1.234321234321234e14L, "123432123432123.******" },
+        { 1.234321234321234e15L, "1234321234321234.000000" },
+        { 1.234321234321234e16L, "123432123432123**.000000" },
+        { 1.234321234321234e17L, "123432123432123***.000000" },
+        { 1.234321234321234e18L, "123432123432123****.000000" },
+        { 1.234321234321234e19L, "123432123432123*****.000000" },
+        { 1.234321234321234e20L, "123432123432123******.000000" },
+        { 1.234321234321234e21L, "123432123432123*******.000000" },
+        { 1.234321234321234e22L, "123432123432123********.000000" },
+        { 1.234321234321234e23L, "123432123432123*********.000000" },
+        { 1.234321234321234e24L, "123432123432123**********.000000" },
+        { 1.234321234321234e25L, "123432123432123***********.000000" },
+        { 1.234321234321234e26L, "123432123432123************.000000" },
+        { 1.234321234321234e27L, "123432123432123*************.000000" },
+        { 1.234321234321234e28L, "123432123432123**************.000000" },
+        { 1.234321234321234e29L, "123432123432123***************.000000" },
+        { 1.234321234321234e30L, "123432123432123****************.000000" },
+        { 1.234321234321234e31L, "123432123432123*****************.000000" },
+        { 1.234321234321234e32L, "123432123432123******************.000000" },
+        { 1.234321234321234e33L, "123432123432123*******************.000000" },
+        { 1.234321234321234e34L, "123432123432123********************.000000" },
+        { 1.234321234321234e35L, "123432123432123*********************.000000" },
+        { 1.234321234321234e36L, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%Lf", data[k].value);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2Lf %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2Lf %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %F format directive.  */
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%F %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015F %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.F %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2F %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2F %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%LF %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2LF %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.2LF %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %e format directive.  */
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.234321e-37" },
+        { 1.234321234321234e-36, "1.234321e-36" },
+        { 1.234321234321234e-35, "1.234321e-35" },
+        { 1.234321234321234e-34, "1.234321e-34" },
+        { 1.234321234321234e-33, "1.234321e-33" },
+        { 1.234321234321234e-32, "1.234321e-32" },
+        { 1.234321234321234e-31, "1.234321e-31" },
+        { 1.234321234321234e-30, "1.234321e-30" },
+        { 1.234321234321234e-29, "1.234321e-29" },
+        { 1.234321234321234e-28, "1.234321e-28" },
+        { 1.234321234321234e-27, "1.234321e-27" },
+        { 1.234321234321234e-26, "1.234321e-26" },
+        { 1.234321234321234e-25, "1.234321e-25" },
+        { 1.234321234321234e-24, "1.234321e-24" },
+        { 1.234321234321234e-23, "1.234321e-23" },
+        { 1.234321234321234e-22, "1.234321e-22" },
+        { 1.234321234321234e-21, "1.234321e-21" },
+        { 1.234321234321234e-20, "1.234321e-20" },
+        { 1.234321234321234e-19, "1.234321e-19" },
+        { 1.234321234321234e-18, "1.234321e-18" },
+        { 1.234321234321234e-17, "1.234321e-17" },
+        { 1.234321234321234e-16, "1.234321e-16" },
+        { 1.234321234321234e-15, "1.234321e-15" },
+        { 1.234321234321234e-14, "1.234321e-14" },
+        { 1.234321234321234e-13, "1.234321e-13" },
+        { 1.234321234321234e-12, "1.234321e-12" },
+        { 1.234321234321234e-11, "1.234321e-11" },
+        { 1.234321234321234e-10, "1.234321e-10" },
+        { 1.234321234321234e-9, "1.234321e-09" },
+        { 1.234321234321234e-8, "1.234321e-08" },
+        { 1.234321234321234e-7, "1.234321e-07" },
+        { 1.234321234321234e-6, "1.234321e-06" },
+        { 1.234321234321234e-5, "1.234321e-05" },
+        { 1.234321234321234e-4, "1.234321e-04" },
+        { 1.234321234321234e-3, "1.234321e-03" },
+        { 1.234321234321234e-2, "1.234321e-02" },
+        { 1.234321234321234e-1, "1.234321e-01" },
+        { 1.234321234321234, "1.234321e+00" },
+        { 1.234321234321234e1, "1.234321e+01" },
+        { 1.234321234321234e2, "1.234321e+02" },
+        { 1.234321234321234e3, "1.234321e+03" },
+        { 1.234321234321234e4, "1.234321e+04" },
+        { 1.234321234321234e5, "1.234321e+05" },
+        { 1.234321234321234e6, "1.234321e+06" },
+        { 1.234321234321234e7, "1.234321e+07" },
+        { 1.234321234321234e8, "1.234321e+08" },
+        { 1.234321234321234e9, "1.234321e+09" },
+        { 1.234321234321234e10, "1.234321e+10" },
+        { 1.234321234321234e11, "1.234321e+11" },
+        { 1.234321234321234e12, "1.234321e+12" },
+        { 1.234321234321234e13, "1.234321e+13" },
+        { 1.234321234321234e14, "1.234321e+14" },
+        { 1.234321234321234e15, "1.234321e+15" },
+        { 1.234321234321234e16, "1.234321e+16" },
+        { 1.234321234321234e17, "1.234321e+17" },
+        { 1.234321234321234e18, "1.234321e+18" },
+        { 1.234321234321234e19, "1.234321e+19" },
+        { 1.234321234321234e20, "1.234321e+20" },
+        { 1.234321234321234e21, "1.234321e+21" },
+        { 1.234321234321234e22, "1.234321e+22" },
+        { 1.234321234321234e23, "1.234321e+23" },
+        { 1.234321234321234e24, "1.234321e+24" },
+        { 1.234321234321234e25, "1.234321e+25" },
+        { 1.234321234321234e26, "1.234321e+26" },
+        { 1.234321234321234e27, "1.234321e+27" },
+        { 1.234321234321234e28, "1.234321e+28" },
+        { 1.234321234321234e29, "1.234321e+29" },
+        { 1.234321234321234e30, "1.234321e+30" },
+        { 1.234321234321234e31, "1.234321e+31" },
+        { 1.234321234321234e32, "1.234321e+32" },
+        { 1.234321234321234e33, "1.234321e+33" },
+        { 1.234321234321234e34, "1.234321e+34" },
+        { 1.234321234321234e35, "1.234321e+35" },
+        { 1.234321234321234e36, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%e", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%e %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%15e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-15e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.e %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.e %d", 9.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015e %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050e %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.e %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.4e %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.4e %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.234321e-37" },
+        { 1.234321234321234e-36L, "1.234321e-36" },
+        { 1.234321234321234e-35L, "1.234321e-35" },
+        { 1.234321234321234e-34L, "1.234321e-34" },
+        { 1.234321234321234e-33L, "1.234321e-33" },
+        { 1.234321234321234e-32L, "1.234321e-32" },
+        { 1.234321234321234e-31L, "1.234321e-31" },
+        { 1.234321234321234e-30L, "1.234321e-30" },
+        { 1.234321234321234e-29L, "1.234321e-29" },
+        { 1.234321234321234e-28L, "1.234321e-28" },
+        { 1.234321234321234e-27L, "1.234321e-27" },
+        { 1.234321234321234e-26L, "1.234321e-26" },
+        { 1.234321234321234e-25L, "1.234321e-25" },
+        { 1.234321234321234e-24L, "1.234321e-24" },
+        { 1.234321234321234e-23L, "1.234321e-23" },
+        { 1.234321234321234e-22L, "1.234321e-22" },
+        { 1.234321234321234e-21L, "1.234321e-21" },
+        { 1.234321234321234e-20L, "1.234321e-20" },
+        { 1.234321234321234e-19L, "1.234321e-19" },
+        { 1.234321234321234e-18L, "1.234321e-18" },
+        { 1.234321234321234e-17L, "1.234321e-17" },
+        { 1.234321234321234e-16L, "1.234321e-16" },
+        { 1.234321234321234e-15L, "1.234321e-15" },
+        { 1.234321234321234e-14L, "1.234321e-14" },
+        { 1.234321234321234e-13L, "1.234321e-13" },
+        { 1.234321234321234e-12L, "1.234321e-12" },
+        { 1.234321234321234e-11L, "1.234321e-11" },
+        { 1.234321234321234e-10L, "1.234321e-10" },
+        { 1.234321234321234e-9L, "1.234321e-09" },
+        { 1.234321234321234e-8L, "1.234321e-08" },
+        { 1.234321234321234e-7L, "1.234321e-07" },
+        { 1.234321234321234e-6L, "1.234321e-06" },
+        { 1.234321234321234e-5L, "1.234321e-05" },
+        { 1.234321234321234e-4L, "1.234321e-04" },
+        { 1.234321234321234e-3L, "1.234321e-03" },
+        { 1.234321234321234e-2L, "1.234321e-02" },
+        { 1.234321234321234e-1L, "1.234321e-01" },
+        { 1.234321234321234L, "1.234321e+00" },
+        { 1.234321234321234e1L, "1.234321e+01" },
+        { 1.234321234321234e2L, "1.234321e+02" },
+        { 1.234321234321234e3L, "1.234321e+03" },
+        { 1.234321234321234e4L, "1.234321e+04" },
+        { 1.234321234321234e5L, "1.234321e+05" },
+        { 1.234321234321234e6L, "1.234321e+06" },
+        { 1.234321234321234e7L, "1.234321e+07" },
+        { 1.234321234321234e8L, "1.234321e+08" },
+        { 1.234321234321234e9L, "1.234321e+09" },
+        { 1.234321234321234e10L, "1.234321e+10" },
+        { 1.234321234321234e11L, "1.234321e+11" },
+        { 1.234321234321234e12L, "1.234321e+12" },
+        { 1.234321234321234e13L, "1.234321e+13" },
+        { 1.234321234321234e14L, "1.234321e+14" },
+        { 1.234321234321234e15L, "1.234321e+15" },
+        { 1.234321234321234e16L, "1.234321e+16" },
+        { 1.234321234321234e17L, "1.234321e+17" },
+        { 1.234321234321234e18L, "1.234321e+18" },
+        { 1.234321234321234e19L, "1.234321e+19" },
+        { 1.234321234321234e20L, "1.234321e+20" },
+        { 1.234321234321234e21L, "1.234321e+21" },
+        { 1.234321234321234e22L, "1.234321e+22" },
+        { 1.234321234321234e23L, "1.234321e+23" },
+        { 1.234321234321234e24L, "1.234321e+24" },
+        { 1.234321234321234e25L, "1.234321e+25" },
+        { 1.234321234321234e26L, "1.234321e+26" },
+        { 1.234321234321234e27L, "1.234321e+27" },
+        { 1.234321234321234e28L, "1.234321e+28" },
+        { 1.234321234321234e29L, "1.234321e+29" },
+        { 1.234321234321234e30L, "1.234321e+30" },
+        { 1.234321234321234e31L, "1.234321e+31" },
+        { 1.234321234321234e32L, "1.234321e+32" },
+        { 1.234321234321234e33L, "1.234321e+33" },
+        { 1.234321234321234e34L, "1.234321e+34" },
+        { 1.234321234321234e35L, "1.234321e+35" },
+        { 1.234321234321234e36L, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%Le", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.Le %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.Le %d", 9.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050Le %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.4Le %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.4Le %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %g format directive.  */
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", 12.75, 33, 44, 55);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", 1234567.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.23432e-37" },
+        { 1.234321234321234e-36, "1.23432e-36" },
+        { 1.234321234321234e-35, "1.23432e-35" },
+        { 1.234321234321234e-34, "1.23432e-34" },
+        { 1.234321234321234e-33, "1.23432e-33" },
+        { 1.234321234321234e-32, "1.23432e-32" },
+        { 1.234321234321234e-31, "1.23432e-31" },
+        { 1.234321234321234e-30, "1.23432e-30" },
+        { 1.234321234321234e-29, "1.23432e-29" },
+        { 1.234321234321234e-28, "1.23432e-28" },
+        { 1.234321234321234e-27, "1.23432e-27" },
+        { 1.234321234321234e-26, "1.23432e-26" },
+        { 1.234321234321234e-25, "1.23432e-25" },
+        { 1.234321234321234e-24, "1.23432e-24" },
+        { 1.234321234321234e-23, "1.23432e-23" },
+        { 1.234321234321234e-22, "1.23432e-22" },
+        { 1.234321234321234e-21, "1.23432e-21" },
+        { 1.234321234321234e-20, "1.23432e-20" },
+        { 1.234321234321234e-19, "1.23432e-19" },
+        { 1.234321234321234e-18, "1.23432e-18" },
+        { 1.234321234321234e-17, "1.23432e-17" },
+        { 1.234321234321234e-16, "1.23432e-16" },
+        { 1.234321234321234e-15, "1.23432e-15" },
+        { 1.234321234321234e-14, "1.23432e-14" },
+        { 1.234321234321234e-13, "1.23432e-13" },
+        { 1.234321234321234e-12, "1.23432e-12" },
+        { 1.234321234321234e-11, "1.23432e-11" },
+        { 1.234321234321234e-10, "1.23432e-10" },
+        { 1.234321234321234e-9, "1.23432e-09" },
+        { 1.234321234321234e-8, "1.23432e-08" },
+        { 1.234321234321234e-7, "1.23432e-07" },
+        { 1.234321234321234e-6, "1.23432e-06" },
+        { 1.234321234321234e-5, "1.23432e-05" },
+        { 1.234321234321234e-4, "0.000123432" },
+        { 1.234321234321234e-3, "0.00123432" },
+        { 1.234321234321234e-2, "0.0123432" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.23432" },
+        { 1.234321234321234e1, "12.3432" },
+        { 1.234321234321234e2, "123.432" },
+        { 1.234321234321234e3, "1234.32" },
+        { 1.234321234321234e4, "12343.2" },
+        { 1.234321234321234e5, "123432" },
+        { 1.234321234321234e6, "1.23432e+06" },
+        { 1.234321234321234e7, "1.23432e+07" },
+        { 1.234321234321234e8, "1.23432e+08" },
+        { 1.234321234321234e9, "1.23432e+09" },
+        { 1.234321234321234e10, "1.23432e+10" },
+        { 1.234321234321234e11, "1.23432e+11" },
+        { 1.234321234321234e12, "1.23432e+12" },
+        { 1.234321234321234e13, "1.23432e+13" },
+        { 1.234321234321234e14, "1.23432e+14" },
+        { 1.234321234321234e15, "1.23432e+15" },
+        { 1.234321234321234e16, "1.23432e+16" },
+        { 1.234321234321234e17, "1.23432e+17" },
+        { 1.234321234321234e18, "1.23432e+18" },
+        { 1.234321234321234e19, "1.23432e+19" },
+        { 1.234321234321234e20, "1.23432e+20" },
+        { 1.234321234321234e21, "1.23432e+21" },
+        { 1.234321234321234e22, "1.23432e+22" },
+        { 1.234321234321234e23, "1.23432e+23" },
+        { 1.234321234321234e24, "1.23432e+24" },
+        { 1.234321234321234e25, "1.23432e+25" },
+        { 1.234321234321234e26, "1.23432e+26" },
+        { 1.234321234321234e27, "1.23432e+27" },
+        { 1.234321234321234e28, "1.23432e+28" },
+        { 1.234321234321234e29, "1.23432e+29" },
+        { 1.234321234321234e30, "1.23432e+30" },
+        { 1.234321234321234e31, "1.23432e+31" },
+        { 1.234321234321234e32, "1.23432e+32" },
+        { 1.234321234321234e33, "1.23432e+33" },
+        { 1.234321234321234e34, "1.23432e+34" },
+        { 1.234321234321234e35, "1.23432e+35" },
+        { 1.234321234321234e36, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%g", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", -0.03125, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", -zerod, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%g %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.g %d", 1.75, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.g %d", 9.75, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010g %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050g %d", NaNd (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.g %d", 1234.0, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.5g %d", 999.951, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.5g %d", 999.996, 33, 44, 55);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", 12.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* A larger positive number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", 1234567.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.23432e-37" },
+        { 1.234321234321234e-36L, "1.23432e-36" },
+        { 1.234321234321234e-35L, "1.23432e-35" },
+        { 1.234321234321234e-34L, "1.23432e-34" },
+        { 1.234321234321234e-33L, "1.23432e-33" },
+        { 1.234321234321234e-32L, "1.23432e-32" },
+        { 1.234321234321234e-31L, "1.23432e-31" },
+        { 1.234321234321234e-30L, "1.23432e-30" },
+        { 1.234321234321234e-29L, "1.23432e-29" },
+        { 1.234321234321234e-28L, "1.23432e-28" },
+        { 1.234321234321234e-27L, "1.23432e-27" },
+        { 1.234321234321234e-26L, "1.23432e-26" },
+        { 1.234321234321234e-25L, "1.23432e-25" },
+        { 1.234321234321234e-24L, "1.23432e-24" },
+        { 1.234321234321234e-23L, "1.23432e-23" },
+        { 1.234321234321234e-22L, "1.23432e-22" },
+        { 1.234321234321234e-21L, "1.23432e-21" },
+        { 1.234321234321234e-20L, "1.23432e-20" },
+        { 1.234321234321234e-19L, "1.23432e-19" },
+        { 1.234321234321234e-18L, "1.23432e-18" },
+        { 1.234321234321234e-17L, "1.23432e-17" },
+        { 1.234321234321234e-16L, "1.23432e-16" },
+        { 1.234321234321234e-15L, "1.23432e-15" },
+        { 1.234321234321234e-14L, "1.23432e-14" },
+        { 1.234321234321234e-13L, "1.23432e-13" },
+        { 1.234321234321234e-12L, "1.23432e-12" },
+        { 1.234321234321234e-11L, "1.23432e-11" },
+        { 1.234321234321234e-10L, "1.23432e-10" },
+        { 1.234321234321234e-9L, "1.23432e-09" },
+        { 1.234321234321234e-8L, "1.23432e-08" },
+        { 1.234321234321234e-7L, "1.23432e-07" },
+        { 1.234321234321234e-6L, "1.23432e-06" },
+        { 1.234321234321234e-5L, "1.23432e-05" },
+        { 1.234321234321234e-4L, "0.000123432" },
+        { 1.234321234321234e-3L, "0.00123432" },
+        { 1.234321234321234e-2L, "0.0123432" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.23432" },
+        { 1.234321234321234e1L, "12.3432" },
+        { 1.234321234321234e2L, "123.432" },
+        { 1.234321234321234e3L, "1234.32" },
+        { 1.234321234321234e4L, "12343.2" },
+        { 1.234321234321234e5L, "123432" },
+        { 1.234321234321234e6L, "1.23432e+06" },
+        { 1.234321234321234e7L, "1.23432e+07" },
+        { 1.234321234321234e8L, "1.23432e+08" },
+        { 1.234321234321234e9L, "1.23432e+09" },
+        { 1.234321234321234e10L, "1.23432e+10" },
+        { 1.234321234321234e11L, "1.23432e+11" },
+        { 1.234321234321234e12L, "1.23432e+12" },
+        { 1.234321234321234e13L, "1.23432e+13" },
+        { 1.234321234321234e14L, "1.23432e+14" },
+        { 1.234321234321234e15L, "1.23432e+15" },
+        { 1.234321234321234e16L, "1.23432e+16" },
+        { 1.234321234321234e17L, "1.23432e+17" },
+        { 1.234321234321234e18L, "1.23432e+18" },
+        { 1.234321234321234e19L, "1.23432e+19" },
+        { 1.234321234321234e20L, "1.23432e+20" },
+        { 1.234321234321234e21L, "1.23432e+21" },
+        { 1.234321234321234e22L, "1.23432e+22" },
+        { 1.234321234321234e23L, "1.23432e+23" },
+        { 1.234321234321234e24L, "1.23432e+24" },
+        { 1.234321234321234e25L, "1.23432e+25" },
+        { 1.234321234321234e26L, "1.23432e+26" },
+        { 1.234321234321234e27L, "1.23432e+27" },
+        { 1.234321234321234e28L, "1.23432e+28" },
+        { 1.234321234321234e29L, "1.23432e+29" },
+        { 1.234321234321234e30L, "1.23432e+30" },
+        { 1.234321234321234e31L, "1.23432e+31" },
+        { 1.234321234321234e32L, "1.23432e+32" },
+        { 1.234321234321234e33L, "1.23432e+33" },
+        { 1.234321234321234e34L, "1.23432e+34" },
+        { 1.234321234321234e35L, "1.23432e+35" },
+        { 1.234321234321234e36L, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char result[1000];
+        int retval =
+          my_sprintf (result, "%Lg", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+      }
+  }
+
+  { /* A negative number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", -0.03125L, 33, 44, 55);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative zero.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", minus_zerol, 33, 44, 55);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Positive infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Negative infinity.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+#endif
+
+  { /* Width.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_LEFT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%-10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%+Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_SPACE.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "% Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ALT.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%#.Lg %d", 9.75L, 33, 44, 55);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%010Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%050Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision.  */
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%.Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with no rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.5Lg %d", 999.951L, 33, 44, 55);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  { /* Precision with rounding.  */
+    char result[100];
+    int retval =
+      my_sprintf (result, "%.5Lg %d", 999.996L, 33, 44, 55);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %n format directive.  */
+
+  {
+    int count = -1;
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%d %n", 123, &count, 33, 44, 55);
+    ASSERT (strcmp (result, "123 ") == 0);
+    ASSERT (retval == strlen (result));
+    ASSERT (count == 4);
+  }
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%2$d %1$d", 33, 55);
+    ASSERT (strcmp (result, "55 33") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the grouping flag.  */
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "%'d %d", 1234567, 99);
+    ASSERT (result[strlen (result) - 1] == '9');
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the left-adjust flag.  */
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "a%*sc", -3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "a%-*sc", 3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[1000];
+    int retval =
+      my_sprintf (result, "a%-*sc", -3, "b");
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of large precision.  */
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000d %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.*d %d", 4000, 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000d %d", -1234567, 99);
+    size_t i;
+    ASSERT (result[0] == '-');
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[1 + i] == '0');
+    ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000u %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000o %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%.4000x %d", 1234567, 99);
+    size_t i;
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char result[5000];
+    int retval =
+      my_sprintf (result, "%#.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result[0] == '0');
+    ASSERT (result[1] == 'x');
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  {
+    char input[5000];
+    char result[5000];
+    int retval;
+    size_t i;
+
+    for (i = 0; i < sizeof (input) - 1; i++)
+      input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+    input[i] = '\0';
+    retval = my_sprintf (result, "%.4000s %d", input, 99);
+    ASSERT (memcmp (result, input, 4000) == 0);
+    ASSERT (strcmp (result + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+  }
+
+  /* Test the support of the %s format directive.  */
+
+  /* To verify that these tests succeed, it is necessary to run them under
+     a tool that checks against invalid memory accesses, such as ElectricFence
+     or "valgrind --tool=memcheck".  */
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        char *block;
+        char result[5000];
+        int retval;
+
+        block = (char *) malloc (i);
+        memcpy (block, "abcdefgh", i);
+        retval = my_sprintf (result, "%.*s", (int) i, block);
+        ASSERT (memcmp (result, block, i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (block);
+      }
+  }
+#if HAVE_WCHAR_T
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        wchar_t *block;
+        size_t j;
+        char result[5000];
+        int retval;
+
+        block = (wchar_t *) malloc (i * sizeof (wchar_t));
+        for (j = 0; j < i; j++)
+          block[j] = "abcdefgh"[j];
+        retval = my_sprintf (result, "%.*ls", (int) i, block);
+        ASSERT (memcmp (result, "abcdefgh", i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (block);
+      }
+  }
+#endif
+}
diff --git a/tests/gnu/test-stat.c b/tests/gnu/test-stat.c
new file mode 100755
index 00000000..05dd3759
--- /dev/null
+++ b/tests/gnu/test-stat.c
@@ -0,0 +1,56 @@
+/* Tests of stat.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+/* Caution: stat may be a function-like macro.  Although this
+   signature check must pass, it may be the signature of the real (and
+   broken) stat rather than rpl_stat.  Most code should not use the
+   address of stat.  */
+#include "signature.h"
+SIGNATURE_CHECK (stat, int, (char const *, struct stat *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include "pathmax.h"
+#include "same-inode.h"
+#include "macros.h"
+
+#define BASE "test-stat.t"
+
+#include "test-stat.h"
+
+/* Wrapper around stat, which works even if stat is a function-like
+   macro, where test_stat_func(stat) would do the wrong thing.  */
+static int
+do_stat (char const *name, struct stat *st)
+{
+  return stat (name, st);
+}
+
+int
+main (void)
+{
+  return test_stat_func (do_stat, true);
+}
diff --git a/tests/gnu/test-stat.h b/tests/gnu/test-stat.h
new file mode 100755
index 00000000..f0904204
--- /dev/null
+++ b/tests/gnu/test-stat.h
@@ -0,0 +1,100 @@
+/* Tests of stat.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+/* This file is designed to test both stat(n,buf) and
+   fstatat(AT_FDCWD,n,buf,0).  FUNC is the function to test.  Assumes
+   that BASE and ASSERT are already defined, and that appropriate
+   headers are already included.  If PRINT, warn before skipping
+   symlink tests with status 77.  */
+
+static int
+test_stat_func (int (*func) (char const *, struct stat *), bool print)
+{
+  struct stat st1;
+  struct stat st2;
+  char cwd[PATH_MAX];
+
+  ASSERT (getcwd (cwd, PATH_MAX) == cwd);
+  ASSERT (func (".", &st1) == 0);
+  ASSERT (func ("./", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (func (cwd, &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+  ASSERT (func ("/", &st1) == 0);
+  ASSERT (func ("///", &st2) == 0);
+  ASSERT (SAME_INODE (st1, st2));
+
+  errno = 0;
+  ASSERT (func ("", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch", &st1) == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nosuch/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  ASSERT (func (BASE "file", &st1) == 0);
+  errno = 0;
+  ASSERT (func (BASE "file/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  /* Now for some symlink tests, where supported.  We set up:
+     link1 -> directory
+     link2 -> file
+     link3 -> dangling
+     link4 -> loop
+     then test behavior with trailing slash.
+  */
+  if (symlink (".", BASE "link1") != 0)
+    {
+      ASSERT (unlink (BASE "file") == 0);
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+  ASSERT (symlink (BASE "file", BASE "link2") == 0);
+  ASSERT (symlink (BASE "nosuch", BASE "link3") == 0);
+  ASSERT (symlink (BASE "link4", BASE "link4") == 0);
+
+  ASSERT (func (BASE "link1/", &st1) == 0);
+  ASSERT (S_ISDIR (st1.st_mode));
+
+  errno = 0;
+  ASSERT (func (BASE "link2/", &st1) == -1);
+  ASSERT (errno == ENOTDIR);
+
+  errno = 0;
+  ASSERT (func (BASE "link3/", &st1) == -1);
+  ASSERT (errno == ENOENT);
+
+  errno = 0;
+  ASSERT (func (BASE "link4/", &st1) == -1);
+  ASSERT (errno == ELOOP);
+
+  /* Cleanup.  */
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link1") == 0);
+  ASSERT (unlink (BASE "link2") == 0);
+  ASSERT (unlink (BASE "link3") == 0);
+  ASSERT (unlink (BASE "link4") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-stdbool.c b/tests/gnu/test-stdbool.c
new file mode 100755
index 00000000..560e0e53
--- /dev/null
+++ b/tests/gnu/test-stdbool.c
@@ -0,0 +1,95 @@
+/* Test of <stdbool.h> substitute.
+   Copyright (C) 2002-2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdbool.h>
+
+#ifndef bool
+ "error: bool is not defined"
+#endif
+#ifndef false
+ "error: false is not defined"
+#endif
+#if false
+ "error: false is not 0"
+#endif
+#ifndef true
+ "error: true is not defined"
+#endif
+#if true != 1
+ "error: true is not 1"
+#endif
+#ifndef __bool_true_false_are_defined
+ "error: __bool_true_false_are_defined is not defined"
+#endif
+
+#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>.  */
+struct s { _Bool s: 1; _Bool t; } s;
+#endif
+
+char a[true == 1 ? 1 : -1];
+char b[false == 0 ? 1 : -1];
+char c[__bool_true_false_are_defined == 1 ? 1 : -1];
+#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>.  */
+char d[(bool) 0.5 == true ? 1 : -1];
+bool e = &s;
+#endif
+char f[(_Bool) 0.0 == false ? 1 : -1];
+char g[true];
+char h[sizeof (_Bool)];
+#if 0 /* See above.  */
+char i[sizeof s.t];
+#endif
+enum { j = false, k = true, l = false * true, m = true * 256 };
+_Bool n[m];
+char o[sizeof n == m * sizeof n[0] ? 1 : -1];
+char p[-1 - (_Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
+#if 0 /* Cannot be guaranteed with gnulib's <stdbool.h>.  */
+#if defined __xlc__ || defined __GNUC__
+ /* Catch a bug in IBM AIX xlc compiler version 6.0.0.0
+    reported by James Lemley on 2005-10-05; see
+    http://lists.gnu.org/archive/html/bug-coreutils/2005-10/msg00086.html
+    This test is not quite right, since xlc is allowed to
+    reject this program, as the initializer for xlcbug is
+    not one of the forms that C requires support for.
+    However, doing the test right would require a run-time
+    test, and that would make cross-compilation harder.
+    Let us hope that IBM fixes the xlc bug, and also adds
+    support for this kind of constant expression.  In the
+    meantime, this test will reject xlc, which is OK, since
+    our stdbool.h substitute should suffice.  We also test
+    this with GCC, where it should work, to detect more
+    quickly whether someone messes up the test in the
+    future.  */
+ char digs[] = "0123456789";
+ int xlcbug = 1 / (&(digs + 5)[-2 + (bool) 1] == &digs[4] ? 1 : -1);
+#endif
+#endif
+/* Catch a bug in an HP-UX C compiler.  See
+   http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+   http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+ */
+_Bool q = true;
+_Bool *pq = &q;
+
+int
+main ()
+{
+  return 0;
+}
diff --git a/tests/gnu/test-stddef.c b/tests/gnu/test-stddef.c
new file mode 100755
index 00000000..d047e57b
--- /dev/null
+++ b/tests/gnu/test-stddef.c
@@ -0,0 +1,38 @@
+/* Test of <stddef.h> substitute.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <stddef.h>
+
+#include "verify.h"
+
+/* Check that appropriate types are defined.  */
+wchar_t a = 'c';
+ptrdiff_t b = 1;
+size_t c = 2;
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-stdint.c b/tests/gnu/test-stdint.c
new file mode 100755
index 00000000..9cec2e2f
--- /dev/null
+++ b/tests/gnu/test-stdint.c
@@ -0,0 +1,360 @@
+/* Test of <stdint.h> substitute.
+   Copyright (C) 2006-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2006.  */
+
+#include <config.h>
+
+/* Whether to enable pedantic checks. */
+#define DO_PEDANTIC 0
+
+#define __STDC_LIMIT_MACROS 1 /* to make it work also in C++ mode */
+#include <stdint.h>
+
+#include "verify.h"
+#include "intprops.h"
+
+#if __GNUC__ >= 2 && DO_PEDANTIC
+# define verify_same_types(expr1,expr2)  \
+    extern void _verify_func(__LINE__) (__typeof__ (expr1) *); \
+    extern void _verify_func(__LINE__) (__typeof__ (expr2) *);
+# define _verify_func(line) _verify_func2(line)
+# define _verify_func2(line) verify_func_ ## line
+#else
+# define verify_same_types(expr1,expr2) extern void verify_func (int)
+#endif
+
+/* 7.18.1.1. Exact-width integer types */
+/* 7.18.2.1. Limits of exact-width integer types */
+
+int8_t a1[3] = { INT8_C (17), INT8_MIN, INT8_MAX };
+verify (TYPE_MINIMUM (int8_t) == INT8_MIN);
+verify (TYPE_MAXIMUM (int8_t) == INT8_MAX);
+verify_same_types (INT8_MIN, (int8_t) 0 + 0);
+verify_same_types (INT8_MAX, (int8_t) 0 + 0);
+
+int16_t a2[3] = { INT16_C (17), INT16_MIN, INT16_MAX };
+verify (TYPE_MINIMUM (int16_t) == INT16_MIN);
+verify (TYPE_MAXIMUM (int16_t) == INT16_MAX);
+verify_same_types (INT16_MIN, (int16_t) 0 + 0);
+verify_same_types (INT16_MAX, (int16_t) 0 + 0);
+
+int32_t a3[3] = { INT32_C (17), INT32_MIN, INT32_MAX };
+verify (TYPE_MINIMUM (int32_t) == INT32_MIN);
+verify (TYPE_MAXIMUM (int32_t) == INT32_MAX);
+verify_same_types (INT32_MIN, (int32_t) 0 + 0);
+verify_same_types (INT32_MAX, (int32_t) 0 + 0);
+
+#ifdef INT64_MAX
+int64_t a4[3] = { INT64_C (17), INT64_MIN, INT64_MAX };
+verify (TYPE_MINIMUM (int64_t) == INT64_MIN);
+verify (TYPE_MAXIMUM (int64_t) == INT64_MAX);
+verify_same_types (INT64_MIN, (int64_t) 0 + 0);
+verify_same_types (INT64_MAX, (int64_t) 0 + 0);
+#endif
+
+uint8_t b1[2] = { UINT8_C (17), UINT8_MAX };
+verify (TYPE_MAXIMUM (uint8_t) == UINT8_MAX);
+verify_same_types (UINT8_MAX, (uint8_t) 0 + 0);
+
+uint16_t b2[2] = { UINT16_C (17), UINT16_MAX };
+verify (TYPE_MAXIMUM (uint16_t) == UINT16_MAX);
+verify_same_types (UINT16_MAX, (uint16_t) 0 + 0);
+
+uint32_t b3[2] = { UINT32_C (17), UINT32_MAX };
+verify (TYPE_MAXIMUM (uint32_t) == UINT32_MAX);
+verify_same_types (UINT32_MAX, (uint32_t) 0 + 0);
+
+#ifdef UINT64_MAX
+uint64_t b4[2] = { UINT64_C (17), UINT64_MAX };
+verify (TYPE_MAXIMUM (uint64_t) == UINT64_MAX);
+verify_same_types (UINT64_MAX, (uint64_t) 0 + 0);
+#endif
+
+#if INT8_MIN && INT8_MAX && INT16_MIN && INT16_MAX && INT32_MIN && INT32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+#if UINT8_MAX && UINT16_MAX && UINT32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+/* 7.18.1.2. Minimum-width integer types */
+/* 7.18.2.2. Limits of minimum-width integer types */
+
+int_least8_t c1[3] = { 17, INT_LEAST8_MIN, INT_LEAST8_MAX };
+verify (TYPE_MINIMUM (int_least8_t) == INT_LEAST8_MIN);
+verify (TYPE_MAXIMUM (int_least8_t) == INT_LEAST8_MAX);
+verify_same_types (INT_LEAST8_MIN, (int_least8_t) 0 + 0);
+verify_same_types (INT_LEAST8_MAX, (int_least8_t) 0 + 0);
+
+int_least16_t c2[3] = { 17, INT_LEAST16_MIN, INT_LEAST16_MAX };
+verify (TYPE_MINIMUM (int_least16_t) == INT_LEAST16_MIN);
+verify (TYPE_MAXIMUM (int_least16_t) == INT_LEAST16_MAX);
+verify_same_types (INT_LEAST16_MIN, (int_least16_t) 0 + 0);
+verify_same_types (INT_LEAST16_MAX, (int_least16_t) 0 + 0);
+
+int_least32_t c3[3] = { 17, INT_LEAST32_MIN, INT_LEAST32_MAX };
+verify (TYPE_MINIMUM (int_least32_t) == INT_LEAST32_MIN);
+verify (TYPE_MAXIMUM (int_least32_t) == INT_LEAST32_MAX);
+verify_same_types (INT_LEAST32_MIN, (int_least32_t) 0 + 0);
+verify_same_types (INT_LEAST32_MAX, (int_least32_t) 0 + 0);
+
+#ifdef INT_LEAST64_MAX
+int_least64_t c4[3] = { 17, INT_LEAST64_MIN, INT_LEAST64_MAX };
+verify (TYPE_MINIMUM (int_least64_t) == INT_LEAST64_MIN);
+verify (TYPE_MAXIMUM (int_least64_t) == INT_LEAST64_MAX);
+verify_same_types (INT_LEAST64_MIN, (int_least64_t) 0 + 0);
+verify_same_types (INT_LEAST64_MAX, (int_least64_t) 0 + 0);
+#endif
+
+uint_least8_t d1[2] = { 17, UINT_LEAST8_MAX };
+verify (TYPE_MAXIMUM (uint_least8_t) == UINT_LEAST8_MAX);
+verify_same_types (UINT_LEAST8_MAX, (uint_least8_t) 0 + 0);
+
+uint_least16_t d2[2] = { 17, UINT_LEAST16_MAX };
+verify (TYPE_MAXIMUM (uint_least16_t) == UINT_LEAST16_MAX);
+verify_same_types (UINT_LEAST16_MAX, (uint_least16_t) 0 + 0);
+
+uint_least32_t d3[2] = { 17, UINT_LEAST32_MAX };
+verify (TYPE_MAXIMUM (uint_least32_t) == UINT_LEAST32_MAX);
+verify_same_types (UINT_LEAST32_MAX, (uint_least32_t) 0 + 0);
+
+#ifdef UINT_LEAST64_MAX
+uint_least64_t d4[2] = { 17, UINT_LEAST64_MAX };
+verify (TYPE_MAXIMUM (uint_least64_t) == UINT_LEAST64_MAX);
+verify_same_types (UINT_LEAST64_MAX, (uint_least64_t) 0 + 0);
+#endif
+
+#if INT_LEAST8_MIN && INT_LEAST8_MAX && INT_LEAST16_MIN && INT_LEAST16_MAX && INT_LEAST32_MIN && INT_LEAST32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+#if UINT_LEAST8_MAX && UINT_LEAST16_MAX && UINT_LEAST32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+/* 7.18.1.3. Fastest minimum-width integer types */
+/* 7.18.2.3. Limits of fastest minimum-width integer types */
+
+int_fast8_t e1[3] = { 17, INT_FAST8_MIN, INT_FAST8_MAX };
+verify (TYPE_MINIMUM (int_fast8_t) == INT_FAST8_MIN);
+verify (TYPE_MAXIMUM (int_fast8_t) == INT_FAST8_MAX);
+verify_same_types (INT_FAST8_MIN, (int_fast8_t) 0 + 0);
+verify_same_types (INT_FAST8_MAX, (int_fast8_t) 0 + 0);
+
+int_fast16_t e2[3] = { 17, INT_FAST16_MIN, INT_FAST16_MAX };
+verify (TYPE_MINIMUM (int_fast16_t) == INT_FAST16_MIN);
+verify (TYPE_MAXIMUM (int_fast16_t) == INT_FAST16_MAX);
+verify_same_types (INT_FAST16_MIN, (int_fast16_t) 0 + 0);
+verify_same_types (INT_FAST16_MAX, (int_fast16_t) 0 + 0);
+
+int_fast32_t e3[3] = { 17, INT_FAST32_MIN, INT_FAST32_MAX };
+verify (TYPE_MINIMUM (int_fast32_t) == INT_FAST32_MIN);
+verify (TYPE_MAXIMUM (int_fast32_t) == INT_FAST32_MAX);
+verify_same_types (INT_FAST32_MIN, (int_fast32_t) 0 + 0);
+verify_same_types (INT_FAST32_MAX, (int_fast32_t) 0 + 0);
+
+#ifdef INT_FAST64_MAX
+int_fast64_t e4[3] = { 17, INT_FAST64_MIN, INT_FAST64_MAX };
+verify (TYPE_MINIMUM (int_fast64_t) == INT_FAST64_MIN);
+verify (TYPE_MAXIMUM (int_fast64_t) == INT_FAST64_MAX);
+verify_same_types (INT_FAST64_MIN, (int_fast64_t) 0 + 0);
+verify_same_types (INT_FAST64_MAX, (int_fast64_t) 0 + 0);
+#endif
+
+uint_fast8_t f1[2] = { 17, UINT_FAST8_MAX };
+verify (TYPE_MAXIMUM (uint_fast8_t) == UINT_FAST8_MAX);
+verify_same_types (UINT_FAST8_MAX, (uint_fast8_t) 0 + 0);
+
+uint_fast16_t f2[2] = { 17, UINT_FAST16_MAX };
+verify (TYPE_MAXIMUM (uint_fast16_t) == UINT_FAST16_MAX);
+verify_same_types (UINT_FAST16_MAX, (uint_fast16_t) 0 + 0);
+
+uint_fast32_t f3[2] = { 17, UINT_FAST32_MAX };
+verify (TYPE_MAXIMUM (uint_fast32_t) == UINT_FAST32_MAX);
+verify_same_types (UINT_FAST32_MAX, (uint_fast32_t) 0 + 0);
+
+#ifdef UINT_FAST64_MAX
+uint_fast64_t f4[2] = { 17, UINT_FAST64_MAX };
+verify (TYPE_MAXIMUM (uint_fast64_t) == UINT_FAST64_MAX);
+verify_same_types (UINT_FAST64_MAX, (uint_fast64_t) 0 + 0);
+#endif
+
+#if INT_FAST8_MIN && INT_FAST8_MAX && INT_FAST16_MIN && INT_FAST16_MAX && INT_FAST32_MIN && INT_FAST32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+#if UINT_FAST8_MAX && UINT_FAST16_MAX && UINT_FAST32_MAX
+/* ok */
+#else
+err or;
+#endif
+
+/* 7.18.1.4. Integer types capable of holding object pointers */
+/* 7.18.2.4. Limits of integer types capable of holding object pointers */
+
+intptr_t g[3] = { 17, INTPTR_MIN, INTPTR_MAX };
+verify (TYPE_MINIMUM (intptr_t) == INTPTR_MIN);
+verify (TYPE_MAXIMUM (intptr_t) == INTPTR_MAX);
+verify_same_types (INTPTR_MIN, (intptr_t) 0 + 0);
+verify_same_types (INTPTR_MAX, (intptr_t) 0 + 0);
+
+uintptr_t h[2] = { 17, UINTPTR_MAX };
+verify (TYPE_MAXIMUM (uintptr_t) == UINTPTR_MAX);
+verify_same_types (UINTPTR_MAX, (uintptr_t) 0 + 0);
+
+#if INTPTR_MIN && INTPTR_MAX && UINTPTR_MAX
+/* ok */
+#else
+err or;
+#endif
+
+/* 7.18.1.5. Greatest-width integer types */
+/* 7.18.2.5. Limits of greatest-width integer types */
+
+intmax_t i[3] = { INTMAX_C (17), INTMAX_MIN, INTMAX_MAX };
+verify (TYPE_MINIMUM (intmax_t) == INTMAX_MIN);
+verify (TYPE_MAXIMUM (intmax_t) == INTMAX_MAX);
+verify_same_types (INTMAX_MIN, (intmax_t) 0 + 0);
+verify_same_types (INTMAX_MAX, (intmax_t) 0 + 0);
+
+uintmax_t j[2] = { UINTMAX_C (17), UINTMAX_MAX };
+verify (TYPE_MAXIMUM (uintmax_t) == UINTMAX_MAX);
+verify_same_types (UINTMAX_MAX, (uintmax_t) 0 + 0);
+
+/* As of 2007, Sun C and HP-UX 10.20 cc don't support 'long long' constants in
+   the preprocessor.  */
+#if !(defined __SUNPRO_C || (defined __hpux && !defined __GNUC__))
+#if INTMAX_MIN && INTMAX_MAX && UINTMAX_MAX
+/* ok */
+#else
+err or;
+#endif
+#endif
+
+/* 7.18.3. Limits of other integer types */
+
+#include <stddef.h>
+
+verify (TYPE_MINIMUM (ptrdiff_t) == PTRDIFF_MIN);
+verify (TYPE_MAXIMUM (ptrdiff_t) == PTRDIFF_MAX);
+verify_same_types (PTRDIFF_MIN, (ptrdiff_t) 0 + 0);
+verify_same_types (PTRDIFF_MAX, (ptrdiff_t) 0 + 0);
+
+#if PTRDIFF_MIN && PTRDIFF_MAX
+/* ok */
+#else
+err or;
+#endif
+
+#include <signal.h>
+
+verify (TYPE_MINIMUM (sig_atomic_t) == SIG_ATOMIC_MIN);
+verify (TYPE_MAXIMUM (sig_atomic_t) == SIG_ATOMIC_MAX);
+verify_same_types (SIG_ATOMIC_MIN, (sig_atomic_t) 0 + 0);
+verify_same_types (SIG_ATOMIC_MAX, (sig_atomic_t) 0 + 0);
+
+#if SIG_ATOMIC_MIN != 17 && SIG_ATOMIC_MAX
+/* ok */
+#else
+err or;
+#endif
+
+verify (TYPE_MAXIMUM (size_t) == SIZE_MAX);
+verify_same_types (SIZE_MAX, (size_t) 0 + 0);
+
+#if SIZE_MAX
+/* ok */
+#else
+err or;
+#endif
+
+#if HAVE_WCHAR_T
+verify (TYPE_MINIMUM (wchar_t) == WCHAR_MIN);
+verify (TYPE_MAXIMUM (wchar_t) == WCHAR_MAX);
+verify_same_types (WCHAR_MIN, (wchar_t) 0 + 0);
+verify_same_types (WCHAR_MAX, (wchar_t) 0 + 0);
+
+# if WCHAR_MIN != 17 && WCHAR_MAX
+/* ok */
+# else
+err or;
+# endif
+#endif
+
+#if HAVE_WINT_T
+# include <wchar.h>
+
+verify (TYPE_MINIMUM (wint_t) == WINT_MIN);
+verify (TYPE_MAXIMUM (wint_t) == WINT_MAX);
+verify_same_types (WINT_MIN, (wint_t) 0 + 0);
+verify_same_types (WINT_MAX, (wint_t) 0 + 0);
+
+# if WINT_MIN != 17 && WINT_MAX
+/* ok */
+# else
+err or;
+# endif
+#endif
+
+/* 7.18.4. Macros for integer constants */
+
+verify (INT8_C (17) == 17);
+verify_same_types (INT8_C (17), (int_least8_t)0 + 0);
+verify (UINT8_C (17) == 17);
+verify_same_types (UINT8_C (17), (uint_least8_t)0 + 0);
+
+verify (INT16_C (17) == 17);
+verify_same_types (INT16_C (17), (int_least16_t)0 + 0);
+verify (UINT16_C (17) == 17);
+verify_same_types (UINT16_C (17), (uint_least16_t)0 + 0);
+
+verify (INT32_C (17) == 17);
+verify_same_types (INT32_C (17), (int_least32_t)0 + 0);
+verify (UINT32_C (17) == 17);
+verify_same_types (UINT32_C (17), (uint_least32_t)0 + 0);
+
+#ifdef INT64_C
+verify (INT64_C (17) == 17);
+verify_same_types (INT64_C (17), (int_least64_t)0 + 0);
+#endif
+#ifdef UINT64_C
+verify (UINT64_C (17) == 17);
+verify_same_types (UINT64_C (17), (uint_least64_t)0 + 0);
+#endif
+
+verify (INTMAX_C (17) == 17);
+verify_same_types (INTMAX_C (17), (intmax_t)0 + 0);
+verify (UINTMAX_C (17) == 17);
+verify_same_types (UINTMAX_C (17), (uintmax_t)0 + 0);
+
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-stdio.c b/tests/gnu/test-stdio.c
new file mode 100755
index 00000000..87100576
--- /dev/null
+++ b/tests/gnu/test-stdio.c
@@ -0,0 +1,43 @@
+/* Test of <stdio.h> substitute.
+   Copyright (C) 2007, 2009-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "verify.h"
+
+/* Check that the various SEEK_* macros are defined.  */
+int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET };
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+/* Check that the types are all defined.  */
+fpos_t t1;
+off_t t2;
+size_t t3;
+ssize_t t4;
+va_list t5;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-stdlib.c b/tests/gnu/test-stdlib.c
new file mode 100755
index 00000000..4bd8715f
--- /dev/null
+++ b/tests/gnu/test-stdlib.c
@@ -0,0 +1,43 @@
+/* Test of <stdlib.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "verify.h"
+
+int exitcode;
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+int
+main (void)
+{
+  /* Check that some macros are defined and different integer constants.  */
+  switch (exitcode)
+    {
+    case EXIT_SUCCESS:
+    case EXIT_FAILURE:
+      break;
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-strchrnul.c b/tests/gnu/test-strchrnul.c
new file mode 100755
index 00000000..49d8278c
--- /dev/null
+++ b/tests/gnu/test-strchrnul.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+ * Written by Eric Blake and Bruno Haible
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (strchrnul, char *, (char const *, int));
+
+#include <stdlib.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  size_t n = 0x100000;
+  char *input = malloc (n + 1);
+  ASSERT (input);
+
+  input[0] = 'a';
+  input[1] = 'b';
+  memset (input + 2, 'c', 1024);
+  memset (input + 1026, 'd', n - 1028);
+  input[n - 2] = 'e';
+  input[n - 1] = 'a';
+  input[n] = '\0';
+
+  /* Basic behavior tests.  */
+  ASSERT (strchrnul (input, 'a') == input);
+  ASSERT (strchrnul (input, 'b') == input + 1);
+  ASSERT (strchrnul (input, 'c') == input + 2);
+  ASSERT (strchrnul (input, 'd') == input + 1026);
+
+  ASSERT (strchrnul (input + 1, 'a') == input + n - 1);
+  ASSERT (strchrnul (input + 1, 'e') == input + n - 2);
+
+  ASSERT (strchrnul (input, 'f') == input + n);
+  ASSERT (strchrnul (input, '\0') == input + n);
+
+  /* Check that a very long haystack is handled quickly if the byte is
+     found near the beginning.  */
+  {
+    size_t repeat = 10000;
+    for (; repeat > 0; repeat--)
+      {
+        ASSERT (strchrnul (input, 'c') == input + 2);
+      }
+  }
+
+  /* Alignment tests.  */
+  {
+    int i, j;
+    for (i = 0; i < 32; i++)
+      {
+        for (j = 0; j < 256; j++)
+          input[i + j] = (j + 1) & 0xff;
+        for (j = 1; j < 256; j++)
+          {
+            ASSERT (strchrnul (input + i, j) == input + i + j - 1);
+            input[i + j - 1] = (j == 1 ? 2 : 1);
+            ASSERT (strchrnul (input + i, j) == input + i + 255);
+            input[i + j - 1] = j;
+          }
+      }
+  }
+
+  free (input);
+
+  return 0;
+}
diff --git a/tests/gnu/test-strerror.c b/tests/gnu/test-strerror.c
new file mode 100755
index 00000000..11ab7e39
--- /dev/null
+++ b/tests/gnu/test-strerror.c
@@ -0,0 +1,57 @@
+/* Test of strerror() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2007.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (strerror, char *, (int));
+
+#include <errno.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  char *str;
+
+  str = strerror (EACCES);
+  ASSERT (str);
+  ASSERT (*str);
+
+  str = strerror (ETIMEDOUT);
+  ASSERT (str);
+  ASSERT (*str);
+
+  str = strerror (EOVERFLOW);
+  ASSERT (str);
+  ASSERT (*str);
+
+  str = strerror (0);
+  ASSERT (str);
+  ASSERT (*str);
+
+  str = strerror (-3);
+  ASSERT (str);
+  ASSERT (*str);
+
+  return 0;
+}
diff --git a/tests/gnu/test-striconv.c b/tests/gnu/test-striconv.c
new file mode 100755
index 00000000..d0f249da
--- /dev/null
+++ b/tests/gnu/test-striconv.c
@@ -0,0 +1,180 @@
+/* Test of character set conversion.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "striconv.h"
+
+#if HAVE_ICONV
+# include <iconv.h>
+#endif
+
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main ()
+{
+#if HAVE_ICONV
+  /* Assume that iconv() supports at least the encodings ASCII, ISO-8859-1,
+     and UTF-8.  */
+  iconv_t cd_88591_to_utf8 = iconv_open ("UTF-8", "ISO-8859-1");
+  iconv_t cd_utf8_to_88591 = iconv_open ("ISO-8859-1", "UTF-8");
+
+  ASSERT (cd_88591_to_utf8 != (iconv_t)(-1));
+  ASSERT (cd_utf8_to_88591 != (iconv_t)(-1));
+
+  /* ------------------------- Test mem_cd_iconv() ------------------------- */
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  {
+    static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    char *result = NULL;
+    size_t length = 0;
+    int retval = mem_cd_iconv (input, strlen (input), cd_88591_to_utf8,
+                               &result, &length);
+    ASSERT (retval == 0);
+    ASSERT (length == strlen (expected));
+    ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  {
+    static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    char *result = NULL;
+    size_t length = 0;
+    int retval = mem_cd_iconv (input, strlen (input), cd_utf8_to_88591,
+                               &result, &length);
+    ASSERT (retval == 0);
+    ASSERT (length == strlen (expected));
+    ASSERT (result != NULL && memcmp (result, expected, strlen (expected)) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  {
+    static const char input[] = "\342\202\254"; /* EURO SIGN */
+    char *result = NULL;
+    size_t length = 0;
+    int retval = mem_cd_iconv (input, strlen (input), cd_utf8_to_88591,
+                               &result, &length);
+    ASSERT (retval == -1 && errno == EILSEQ);
+    ASSERT (result == NULL);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  {
+    static const char input[] = "\342";
+    char *result = NULL;
+    size_t length = 0;
+    int retval = mem_cd_iconv (input, strlen (input), cd_utf8_to_88591,
+                               &result, &length);
+    ASSERT (retval == 0);
+    ASSERT (length == 0);
+    free (result);
+  }
+
+  /* ------------------------- Test str_cd_iconv() ------------------------- */
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  {
+    static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    char *result = str_cd_iconv (input, cd_88591_to_utf8);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, expected) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  {
+    static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    char *result = str_cd_iconv (input, cd_utf8_to_88591);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, expected) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  {
+    static const char input[] = "Costs: 27 \342\202\254"; /* EURO SIGN */
+    char *result = str_cd_iconv (input, cd_utf8_to_88591);
+    ASSERT (result == NULL && errno == EILSEQ);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  {
+    static const char input[] = "\342";
+    char *result = str_cd_iconv (input, cd_utf8_to_88591);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "") == 0);
+    free (result);
+  }
+
+  iconv_close (cd_88591_to_utf8);
+  iconv_close (cd_utf8_to_88591);
+
+  /* -------------------------- Test str_iconv() -------------------------- */
+
+  /* Test conversion from ISO-8859-1 to UTF-8 with no errors.  */
+  {
+    static const char input[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    static const char expected[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    char *result = str_iconv (input, "ISO-8859-1", "UTF-8");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, expected) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with no errors.  */
+  {
+    static const char input[] = "\303\204rger mit b\303\266sen B\303\274bchen ohne Augenma\303\237";
+    static const char expected[] = "\304rger mit b\366sen B\374bchen ohne Augenma\337";
+    char *result = str_iconv (input, "UTF-8", "ISO-8859-1");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, expected) == 0);
+    free (result);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EILSEQ.  */
+  {
+    static const char input[] = "Costs: 27 \342\202\254"; /* EURO SIGN */
+    char *result = str_iconv (input, "UTF-8", "ISO-8859-1");
+    ASSERT (result == NULL && errno == EILSEQ);
+  }
+
+  /* Test conversion from UTF-8 to ISO-8859-1 with EINVAL.  */
+  {
+    static const char input[] = "\342";
+    char *result = str_iconv (input, "UTF-8", "ISO-8859-1");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "") == 0);
+    free (result);
+  }
+
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-string.c b/tests/gnu/test-string.c
new file mode 100755
index 00000000..019a8174
--- /dev/null
+++ b/tests/gnu/test-string.c
@@ -0,0 +1,33 @@
+/* Test of <string.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <string.h>
+
+#include "verify.h"
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-strtod.c b/tests/gnu/test-strtod.c
new file mode 100755
index 00000000..cdb57b22
--- /dev/null
+++ b/tests/gnu/test-strtod.c
@@ -0,0 +1,918 @@
+/*
+ * Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+ * Written by Eric Blake
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (strtod, double, (char const *, char **));
+
+#include <errno.h>
+#include <float.h>
+#include <math.h>
+#include <string.h>
+
+#include "isnand-nolibm.h"
+#include "macros.h"
+
+/* Avoid requiring -lm just for fabs.  */
+#define FABS(d) ((d) < 0.0 ? -(d) : (d))
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zero instead.  */
+double zero = 0.0;
+
+int
+main (void)
+{
+  int status = 0;
+  /* Subject sequence empty or invalid.  */
+  {
+    const char input[] = "";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " ";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " +";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " .";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " .e0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);              /* IRIX 6.5, OSF/1 5.1 */
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " +.e-0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);              /* IRIX 6.5, OSF/1 5.1 */
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " in";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+  {
+    const char input[] = " na";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+  }
+
+  /* Simple floating point values.  */
+  {
+    const char input[] = "1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1.";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = ".5";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    /* FIXME - gnulib's version is rather inaccurate.  It would be
+       nice to guarantee an exact result, but for now, we settle for a
+       1-ulp error.  */
+    ASSERT (FABS (result - 0.5) < DBL_EPSILON);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = " 1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "+1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "-1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == -1.0);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 3);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e+0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 4);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e-0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 4);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 10.0);
+    ASSERT (ptr == input + 3);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "5e-1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    /* FIXME - gnulib's version is rather inaccurate.  It would be
+       nice to guarantee an exact result, but for now, we settle for a
+       1-ulp error.  */
+    ASSERT (FABS (result - 0.5) < DBL_EPSILON);
+    ASSERT (ptr == input + 4);
+    ASSERT (errno == 0);
+  }
+
+  /* Zero.  */
+  {
+    const char input[] = "0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = ".0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0e0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 3);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0e+9999999";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 10);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0e-9999999";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 10);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "-0";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* IRIX 6.5, OSF/1 4.0 */
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+
+  /* Suffixes.  */
+  {
+    const char input[] = "1f";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1.f";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e+";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1e-";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1E 2";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);             /* HP-UX 11.11, IRIX 6.5, OSF/1 4.0 */
+    ASSERT (ptr == input + 1);          /* HP-UX 11.11, IRIX 6.5 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "00x1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 2);
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "-0x";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* MacOS X 10.3, FreeBSD 6.2, IRIX 6.5, OSF/1 4.0 */
+    ASSERT (ptr == input + 2);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0xg";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0xp";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x.";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0xp+";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0xp+1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x.p+1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 1);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2 */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "1p+1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);
+    ASSERT (ptr == input + 1);
+    ASSERT (errno == 0);
+  }
+
+  /* Overflow/underflow.  */
+  {
+    const char input[] = "1E1000000";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == HUGE_VAL);
+    ASSERT (ptr == input + 9);          /* OSF/1 5.1 */
+    ASSERT (errno == ERANGE);
+  }
+  {
+    const char input[] = "-1E1000000";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == -HUGE_VAL);
+    ASSERT (ptr == input + 10);
+    ASSERT (errno == ERANGE);
+  }
+  {
+    const char input[] = "1E-100000";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (0.0 <= result && result <= DBL_MIN);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input + 9);
+    ASSERT (errno == ERANGE);
+  }
+  {
+    const char input[] = "-1E-100000";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (-DBL_MIN <= result && result <= 0.0);
+#if 0
+    /* FIXME - this is glibc bug 5995; POSIX allows returning positive
+       0 on negative underflow, even though quality of implementation
+       demands preserving the sign.  Disable this test until fixed
+       glibc is more prevalent.  */
+    ASSERT (!!signbit (result) == !!signbit (-zero)); /* glibc-2.3.6, mingw */
+#endif
+    ASSERT (ptr == input + 10);
+    ASSERT (errno == ERANGE);
+  }
+
+  /* Infinity.  */
+  {
+    const char input[] = "iNf";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == HUGE_VAL);        /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 3);          /* OpenBSD 4.0, HP-UX 11.00, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw */
+    ASSERT (errno == 0);                /* HP-UX 11.11, OSF/1 4.0 */
+  }
+  {
+    const char input[] = "-InF";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == -HUGE_VAL);       /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 4);          /* OpenBSD 4.0, HP-UX 11.00, IRIX 6.5, OSF/1 4.0, Solaris 9, mingw */
+    ASSERT (errno == 0);                /* HP-UX 11.11, OSF/1 4.0 */
+  }
+  {
+    const char input[] = "infinite";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == HUGE_VAL);        /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 3);          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (errno == 0);                /* OSF/1 4.0 */
+  }
+  {
+    const char input[] = "infinitY";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == HUGE_VAL);        /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 8);          /* OpenBSD 4.0, HP-UX 11.00, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw */
+    ASSERT (errno == 0);                /* HP-UX 11.11, OSF/1 4.0 */
+  }
+  {
+    const char input[] = "infinitY.";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == HUGE_VAL);        /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 8);          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (errno == 0);                /* OSF/1 4.0 */
+  }
+
+  /* NaN.  Some processors set the sign bit of the default NaN, so all
+     we check is that using a sign changes the result.  */
+  {
+    const char input[] = "-nan";
+    char *ptr1;
+    char *ptr2;
+    double result1;
+    double result2;
+    errno = 0;
+    result1 = strtod (input, &ptr1);
+    result2 = strtod (input + 1, &ptr2);
+#if 1 /* All known CPUs support NaNs.  */
+    ASSERT (isnand (result1));          /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (isnand (result2));          /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+# if 0
+    /* Sign bits of NaN is a portability sticking point, not worth
+       worrying about.  */
+    ASSERT (!!signbit (result1) != !!signbit (result2)); /* glibc-2.3.6, IRIX 6.5, OSF/1 5.1, mingw */
+# endif
+    ASSERT (ptr1 == input + 4);         /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, Solaris 2.5.1, mingw */
+    ASSERT (ptr2 == input + 4);         /* OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, Solaris 2.5.1, mingw */
+    ASSERT (errno == 0);                /* HP-UX 11.11 */
+#else
+    ASSERT (result1 == 0.0);
+    ASSERT (result2 == 0.0);
+    ASSERT (!signbit (result1));
+    ASSERT (!signbit (result2));
+    ASSERT (ptr1 == input);
+    ASSERT (ptr2 == input + 1);
+    ASSERT (errno == 0 || errno == EINVAL);
+#endif
+  }
+  {
+    const char input[] = "+nan(";
+    char *ptr1;
+    char *ptr2;
+    double result1;
+    double result2;
+    errno = 0;
+    result1 = strtod (input, &ptr1);
+    result2 = strtod (input + 1, &ptr2);
+#if 1 /* All known CPUs support NaNs.  */
+    ASSERT (isnand (result1));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (isnand (result2));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (!!signbit (result1) == !!signbit (result2));
+    ASSERT (ptr1 == input + 4);         /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 2.5.1, mingw */
+    ASSERT (ptr2 == input + 4);         /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 2.5.1, mingw */
+    ASSERT (errno == 0);
+#else
+    ASSERT (result1 == 0.0);
+    ASSERT (result2 == 0.0);
+    ASSERT (!signbit (result1));
+    ASSERT (!signbit (result2));
+    ASSERT (ptr1 == input);
+    ASSERT (ptr2 == input + 1);
+    ASSERT (errno == 0 || errno == EINVAL);
+#endif
+  }
+  {
+    const char input[] = "-nan()";
+    char *ptr1;
+    char *ptr2;
+    double result1;
+    double result2;
+    errno = 0;
+    result1 = strtod (input, &ptr1);
+    result2 = strtod (input + 1, &ptr2);
+#if 1 /* All known CPUs support NaNs.  */
+    ASSERT (isnand (result1));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (isnand (result2));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+# if 0
+    /* Sign bits of NaN is a portability sticking point, not worth
+       worrying about.  */
+    ASSERT (!!signbit (result1) != !!signbit (result2)); /* glibc-2.3.6, IRIX 6.5, OSF/1 5.1, mingw */
+# endif
+    ASSERT (ptr1 == input + 6);         /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr2 == input + 6);         /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (errno == 0);
+#else
+    ASSERT (result1 == 0.0);
+    ASSERT (result2 == 0.0);
+    ASSERT (!signbit (result1));
+    ASSERT (!signbit (result2));
+    ASSERT (ptr1 == input);
+    ASSERT (ptr2 == input + 1);
+    ASSERT (errno == 0 || errno == EINVAL);
+#endif
+  }
+  {
+    const char input[] = " nan().";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+#if 1 /* All known CPUs support NaNs.  */
+    ASSERT (isnand (result));           /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr == input + 6);          /* glibc-2.3.6, MacOS X 10.3, FreeBSD 6.2, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (errno == 0);
+#else
+    ASSERT (result == 0.0);
+    ASSERT (!signbit (result));
+    ASSERT (ptr == input);
+    ASSERT (errno == 0 || errno == EINVAL);
+#endif
+  }
+  {
+    /* The behavior of nan(0) is implementation-defined, but all
+       implementations we know of which handle optional
+       n-char-sequences handle nan(0) the same as nan().  */
+    const char input[] = "-nan(0).";
+    char *ptr1;
+    char *ptr2;
+    double result1;
+    double result2;
+    errno = 0;
+    result1 = strtod (input, &ptr1);
+    result2 = strtod (input + 1, &ptr2);
+#if 1 /* All known CPUs support NaNs.  */
+    ASSERT (isnand (result1));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (isnand (result2));          /* OpenBSD 4.0, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+# if 0
+    /* Sign bits of NaN is a portability sticking point, not worth
+       worrying about.  */
+    ASSERT (!!signbit (result1) != !!signbit (result2)); /* glibc-2.3.6, IRIX 6.5, OSF/1 5.1, mingw */
+# endif
+    ASSERT (ptr1 == input + 7);         /* glibc-2.3.6, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (ptr2 == input + 7);         /* glibc-2.3.6, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, mingw */
+    ASSERT (errno == 0);
+#else
+    ASSERT (result1 == 0.0);
+    ASSERT (result2 == 0.0);
+    ASSERT (!signbit (result1));
+    ASSERT (!signbit (result2));
+    ASSERT (ptr1 == input);
+    ASSERT (ptr2 == input + 1);
+    ASSERT (errno == 0 || errno == EINVAL);
+#endif
+  }
+
+  /* Hex.  */
+  {
+    const char input[] = "0xa";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 10.0);            /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 3);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0XA";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 10.0);            /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 3);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x1p";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);             /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 3);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x1p+";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 1.0);             /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 3);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x1p+1";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 2.0);             /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 6);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+  {
+    const char input[] = "0x1p+1a";
+    char *ptr;
+    double result;
+    errno = 0;
+    result = strtod (input, &ptr);
+    ASSERT (result == 2.0);             /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (ptr == input + 6);          /* NetBSD 3.0, OpenBSD 4.0, AIX 5.1, HP-UX 11.11, IRIX 6.5, OSF/1 5.1, Solaris 10, mingw */
+    ASSERT (errno == 0);
+  }
+
+  /* Large buffers.  */
+  {
+    size_t m = 1000000;
+    char *input = malloc (m + 1);
+    if (input)
+      {
+        char *ptr;
+        double result;
+        memset (input, '\t', m - 1);
+        input[m - 1] = '1';
+        input[m] = '\0';
+        errno = 0;
+        result = strtod (input, &ptr);
+        ASSERT (result == 1.0);
+        ASSERT (ptr == input + m);
+        ASSERT (errno == 0);
+      }
+    free (input);
+  }
+  {
+    size_t m = 1000000;
+    char *input = malloc (m + 1);
+    if (input)
+      {
+        char *ptr;
+        double result;
+        memset (input, '0', m - 1);
+        input[m - 1] = '1';
+        input[m] = '\0';
+        errno = 0;
+        result = strtod (input, &ptr);
+        ASSERT (result == 1.0);
+        ASSERT (ptr == input + m);
+        ASSERT (errno == 0);
+      }
+    free (input);
+  }
+#if 0
+  /* Newlib has an artificial limit of 20000 for the exponent.  TODO -
+     gnulib should fix this.  */
+  {
+    size_t m = 1000000;
+    char *input = malloc (m + 1);
+    if (input)
+      {
+        char *ptr;
+        double result;
+        input[0] = '.';
+        memset (input + 1, '0', m - 10);
+        input[m - 9] = '1';
+        input[m - 8] = 'e';
+        input[m - 7] = '+';
+        input[m - 6] = '9';
+        input[m - 5] = '9';
+        input[m - 4] = '9';
+        input[m - 3] = '9';
+        input[m - 2] = '9';
+        input[m - 1] = '1';
+        input[m] = '\0';
+        errno = 0;
+        result = strtod (input, &ptr);
+        ASSERT (result == 1.0);         /* MacOS X 10.3, FreeBSD 6.2, NetBSD 3.0, OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+        ASSERT (ptr == input + m);      /* OSF/1 5.1 */
+        ASSERT (errno == 0);            /* MacOS X 10.3, FreeBSD 6.2, NetBSD 3.0, OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+      }
+    free (input);
+  }
+  {
+    size_t m = 1000000;
+    char *input = malloc (m + 1);
+    if (input)
+      {
+        char *ptr;
+        double result;
+        input[0] = '1';
+        memset (input + 1, '0', m - 9);
+        input[m - 8] = 'e';
+        input[m - 7] = '-';
+        input[m - 6] = '9';
+        input[m - 5] = '9';
+        input[m - 4] = '9';
+        input[m - 3] = '9';
+        input[m - 2] = '9';
+        input[m - 1] = '1';
+        input[m] = '\0';
+        errno = 0;
+        result = strtod (input, &ptr);
+        ASSERT (result == 1.0);         /* MacOS X 10.3, FreeBSD 6.2, NetBSD 3.0, OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+        ASSERT (ptr == input + m);
+        ASSERT (errno == 0);            /* MacOS X 10.3, FreeBSD 6.2, NetBSD 3.0, OpenBSD 4.0, IRIX 6.5, OSF/1 5.1, mingw */
+      }
+    free (input);
+  }
+#endif
+  {
+    size_t m = 1000000;
+    char *input = malloc (m + 1);
+    if (input)
+      {
+        char *ptr;
+        double result;
+        input[0] = '-';
+        input[1] = '0';
+        input[2] = 'e';
+        input[3] = '1';
+        memset (input + 4, '0', m - 3);
+        input[m] = '\0';
+        errno = 0;
+        result = strtod (input, &ptr);
+        ASSERT (result == 0.0);
+        ASSERT (!!signbit (result) == !!signbit (-zero)); /* IRIX 6.5, OSF/1 4.0 */
+        ASSERT (ptr == input + m);
+        ASSERT (errno == 0);
+      }
+    free (input);
+  }
+
+  /* Rounding.  */
+  /* TODO - is it worth some tests of rounding for typical IEEE corner
+     cases, such as .5 ULP rounding up to the smallest denormal and
+     not causing underflow, or DBL_MIN - .5 ULP not causing an
+     infinite loop?  */
+
+  return status;
+}
diff --git a/tests/gnu/test-symlink.c b/tests/gnu/test-symlink.c
new file mode 100755
index 00000000..d2df54c4
--- /dev/null
+++ b/tests/gnu/test-symlink.c
@@ -0,0 +1,47 @@
+/* Tests of symlink.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (symlink, int, (char const *, char const *));
+
+#include <fcntl.h>
+#include <errno.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#include "ignore-value.h"
+#include "macros.h"
+
+#define BASE "test-symlink.t"
+
+#include "test-symlink.h"
+
+int
+main (void)
+{
+  /* Remove any leftovers from a previous partial run.  */
+  ignore_value (system ("rm -rf " BASE "*"));
+
+  return test_symlink (symlink, true);
+}
diff --git a/tests/gnu/test-symlink.h b/tests/gnu/test-symlink.h
new file mode 100755
index 00000000..0c92bd40
--- /dev/null
+++ b/tests/gnu/test-symlink.h
@@ -0,0 +1,95 @@
+/* Tests of symlink.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+/* This file is designed to test both symlink(a,b) and
+   symlinkat(a,AT_FDCWD,b).  FUNC is the function to test.  Assumes
+   that BASE and ASSERT are already defined, and that appropriate
+   headers are already included.  If PRINT, warn before skipping
+   symlink tests with status 77.  */
+
+static int
+test_symlink (int (*func) (char const *, char const *), bool print)
+{
+  if (func ("nowhere", BASE "link1"))
+    {
+      if (print)
+        fputs ("skipping test: symlinks not supported on this file system\n",
+               stderr);
+      return 77;
+    }
+
+  /* Some systems allow the creation of 0-length symlinks as a synonym
+     for "."; but most reject it.  */
+  {
+    int status;
+    errno = 0;
+    status = func ("", BASE "link2");
+    if (status == -1)
+      ASSERT (errno == ENOENT || errno == EINVAL);
+    else
+      {
+        ASSERT (status == 0);
+        ASSERT (unlink (BASE "link2") == 0);
+      }
+  }
+
+  /* Sanity checks of failures.  */
+  errno = 0;
+  ASSERT (func ("nowhere", "") == -1);
+  ASSERT (errno == ENOENT);
+  errno = 0;
+  ASSERT (func ("nowhere", ".") == -1);
+  ASSERT (errno == EEXIST || errno == EINVAL);
+  errno = 0;
+  ASSERT (func ("somewhere", BASE "link1") == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func ("nowhere", BASE "link2/") == -1);
+  ASSERT (errno == ENOTDIR || errno == ENOENT);
+  ASSERT (mkdir (BASE "dir", 0700) == 0);
+  errno = 0;
+  ASSERT (func ("nowhere", BASE "dir") == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func ("nowhere", BASE "dir/") == -1);
+  ASSERT (errno == EEXIST || errno == EINVAL);
+  ASSERT (close (creat (BASE "file", 0600)) == 0);
+  errno = 0;
+  ASSERT (func ("nowhere", BASE "file") == -1);
+  ASSERT (errno == EEXIST);
+  errno = 0;
+  ASSERT (func ("nowhere", BASE "file/") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTDIR || errno == ENOENT);
+
+  /* Trailing slash must always be rejected.  */
+  ASSERT (unlink (BASE "link1") == 0);
+  ASSERT (func (BASE "link2", BASE "link1") == 0);
+  errno = 0;
+  ASSERT (func (BASE "nowhere", BASE "link1/") == -1);
+  ASSERT (errno == EEXIST || errno == ENOTDIR || errno == ENOENT);
+  errno = 0;
+  ASSERT (unlink (BASE "link2") == -1);
+  ASSERT (errno == ENOENT);
+
+  /* Cleanup.  */
+  ASSERT (rmdir (BASE "dir") == 0);
+  ASSERT (unlink (BASE "file") == 0);
+  ASSERT (unlink (BASE "link1") == 0);
+
+  return 0;
+}
diff --git a/tests/gnu/test-sys_stat.c b/tests/gnu/test-sys_stat.c
new file mode 100755
index 00000000..5f1aacd1
--- /dev/null
+++ b/tests/gnu/test-sys_stat.c
@@ -0,0 +1,288 @@
+/* Test of <sys/stat.h> substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <sys/stat.h>
+
+#include "verify.h"
+
+/* Check the existence of some macros.  */
+int a[] =
+  {
+    S_IFMT,
+    S_IFBLK, S_IFCHR, S_IFDIR, S_IFIFO, S_IFREG,
+#ifdef S_IFLNK /* missing on mingw and djgpp */
+    S_IFLNK,
+#endif
+#ifdef S_IFSOCK /* missing on mingw and djgpp */
+    S_IFSOCK,
+#endif
+    S_IRWXU, S_IRUSR, S_IWUSR, S_IXUSR,
+    S_IRWXG, S_IRGRP, S_IWGRP, S_IXGRP,
+    S_IRWXO, S_IROTH, S_IWOTH, S_IXOTH,
+    S_ISUID, S_ISGID, S_ISVTX,
+    S_ISBLK (S_IFREG),
+    S_ISCHR (S_IFREG),
+    S_ISDIR (S_IFREG),
+    S_ISFIFO (S_IFREG),
+    S_ISREG (S_IFREG),
+    S_ISLNK (S_IFREG),
+    S_ISSOCK (S_IFREG),
+    S_ISDOOR (S_IFREG),
+    S_ISMPB (S_IFREG),
+    S_ISNAM (S_IFREG),
+    S_ISNWK (S_IFREG),
+    S_ISPORT (S_IFREG),
+    S_ISCTG (S_IFREG),
+    S_ISOFD (S_IFREG),
+    S_ISOFL (S_IFREG),
+    S_ISWHT (S_IFREG)
+  };
+
+/* Sanity checks.  */
+
+verify (S_IRWXU == (S_IRUSR | S_IWUSR | S_IXUSR));
+verify (S_IRWXG == (S_IRGRP | S_IWGRP | S_IXGRP));
+verify (S_IRWXO == (S_IROTH | S_IWOTH | S_IXOTH));
+
+verify (S_ISBLK (S_IFBLK));
+verify (!S_ISBLK (S_IFCHR));
+verify (!S_ISBLK (S_IFDIR));
+verify (!S_ISBLK (S_IFIFO));
+verify (!S_ISBLK (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISBLK (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISBLK (S_IFSOCK));
+#endif
+
+verify (!S_ISCHR (S_IFBLK));
+verify (S_ISCHR (S_IFCHR));
+verify (!S_ISCHR (S_IFDIR));
+verify (!S_ISCHR (S_IFIFO));
+verify (!S_ISCHR (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISCHR (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISCHR (S_IFSOCK));
+#endif
+
+verify (!S_ISDIR (S_IFBLK));
+verify (!S_ISDIR (S_IFCHR));
+verify (S_ISDIR (S_IFDIR));
+verify (!S_ISDIR (S_IFIFO));
+verify (!S_ISDIR (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISDIR (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISDIR (S_IFSOCK));
+#endif
+
+verify (!S_ISFIFO (S_IFBLK));
+verify (!S_ISFIFO (S_IFCHR));
+verify (!S_ISFIFO (S_IFDIR));
+verify (S_ISFIFO (S_IFIFO));
+verify (!S_ISFIFO (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISFIFO (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISFIFO (S_IFSOCK));
+#endif
+
+verify (!S_ISREG (S_IFBLK));
+verify (!S_ISREG (S_IFCHR));
+verify (!S_ISREG (S_IFDIR));
+verify (!S_ISREG (S_IFIFO));
+verify (S_ISREG (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISREG (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISREG (S_IFSOCK));
+#endif
+
+verify (!S_ISLNK (S_IFBLK));
+verify (!S_ISLNK (S_IFCHR));
+verify (!S_ISLNK (S_IFDIR));
+verify (!S_ISLNK (S_IFIFO));
+verify (!S_ISLNK (S_IFREG));
+#ifdef S_IFLNK
+verify (S_ISLNK (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISLNK (S_IFSOCK));
+#endif
+
+verify (!S_ISSOCK (S_IFBLK));
+verify (!S_ISSOCK (S_IFCHR));
+verify (!S_ISSOCK (S_IFDIR));
+verify (!S_ISSOCK (S_IFIFO));
+verify (!S_ISSOCK (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISSOCK (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (S_ISSOCK (S_IFSOCK));
+#endif
+
+verify (!S_ISDOOR (S_IFBLK));
+verify (!S_ISDOOR (S_IFCHR));
+verify (!S_ISDOOR (S_IFDIR));
+verify (!S_ISDOOR (S_IFIFO));
+verify (!S_ISDOOR (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISDOOR (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISDOOR (S_IFSOCK));
+#endif
+
+verify (!S_ISMPB (S_IFBLK));
+verify (!S_ISMPB (S_IFCHR));
+verify (!S_ISMPB (S_IFDIR));
+verify (!S_ISMPB (S_IFIFO));
+verify (!S_ISMPB (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISMPB (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISMPB (S_IFSOCK));
+#endif
+
+verify (!S_ISNAM (S_IFBLK));
+verify (!S_ISNAM (S_IFCHR));
+verify (!S_ISNAM (S_IFDIR));
+verify (!S_ISNAM (S_IFIFO));
+verify (!S_ISNAM (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISNAM (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISNAM (S_IFSOCK));
+#endif
+
+verify (!S_ISNWK (S_IFBLK));
+verify (!S_ISNWK (S_IFCHR));
+verify (!S_ISNWK (S_IFDIR));
+verify (!S_ISNWK (S_IFIFO));
+verify (!S_ISNWK (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISNWK (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISNWK (S_IFSOCK));
+#endif
+
+verify (!S_ISPORT (S_IFBLK));
+verify (!S_ISPORT (S_IFCHR));
+verify (!S_ISPORT (S_IFDIR));
+verify (!S_ISPORT (S_IFIFO));
+verify (!S_ISPORT (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISPORT (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISPORT (S_IFSOCK));
+#endif
+
+verify (!S_ISCTG (S_IFBLK));
+verify (!S_ISCTG (S_IFCHR));
+verify (!S_ISCTG (S_IFDIR));
+verify (!S_ISCTG (S_IFIFO));
+verify (!S_ISCTG (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISCTG (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISCTG (S_IFSOCK));
+#endif
+
+verify (!S_ISOFD (S_IFBLK));
+verify (!S_ISOFD (S_IFCHR));
+verify (!S_ISOFD (S_IFDIR));
+verify (!S_ISOFD (S_IFIFO));
+verify (!S_ISOFD (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISOFD (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISOFD (S_IFSOCK));
+#endif
+
+verify (!S_ISOFL (S_IFBLK));
+verify (!S_ISOFL (S_IFCHR));
+verify (!S_ISOFL (S_IFDIR));
+verify (!S_ISOFL (S_IFIFO));
+verify (!S_ISOFL (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISOFL (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISOFL (S_IFSOCK));
+#endif
+
+verify (!S_ISWHT (S_IFBLK));
+verify (!S_ISWHT (S_IFCHR));
+verify (!S_ISWHT (S_IFDIR));
+verify (!S_ISWHT (S_IFIFO));
+verify (!S_ISWHT (S_IFREG));
+#ifdef S_IFLNK
+verify (!S_ISWHT (S_IFLNK));
+#endif
+#ifdef S_IFSOCK
+verify (!S_ISWHT (S_IFSOCK));
+#endif
+
+/* POSIX 2008 requires traditional encoding of permission constants.  */
+verify (S_IRWXU == 00700);
+verify (S_IRUSR == 00400);
+verify (S_IWUSR == 00200);
+verify (S_IXUSR == 00100);
+verify (S_IRWXG == 00070);
+verify (S_IRGRP == 00040);
+verify (S_IWGRP == 00020);
+verify (S_IXGRP == 00010);
+verify (S_IRWXO == 00007);
+verify (S_IROTH == 00004);
+verify (S_IWOTH == 00002);
+verify (S_IXOTH == 00001);
+verify (S_ISUID == 04000);
+verify (S_ISGID == 02000);
+verify (S_ISVTX == 01000);
+
+#if ((0 <= UTIME_NOW && UTIME_NOW < 1000000000)           \
+     || (0 <= UTIME_OMIT && UTIME_OMIT < 1000000000)      \
+     || UTIME_NOW == UTIME_OMIT)
+invalid UTIME macros
+#endif
+
+/* Check the existence of some types.  */
+nlink_t t1;
+
+struct timespec t2;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-sys_time.c b/tests/gnu/test-sys_time.c
new file mode 100755
index 00000000..2ab849e9
--- /dev/null
+++ b/tests/gnu/test-sys_time.c
@@ -0,0 +1,29 @@
+/* Test of <sys/time.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <sys/time.h>
+
+struct timeval a;
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-sys_wait.c b/tests/gnu/test-sys_wait.c
new file mode 100755
index 00000000..8c0170ed
--- /dev/null
+++ b/tests/gnu/test-sys_wait.c
@@ -0,0 +1,30 @@
+/* Test of <sys/wait.h> substitute.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <sys/wait.h>
+
+/* Check for existence of required types.  */
+static pid_t a;
+
+int
+main (void)
+{
+  return a;
+}
diff --git a/tests/gnu/test-time.c b/tests/gnu/test-time.c
new file mode 100755
index 00000000..8e250bd2
--- /dev/null
+++ b/tests/gnu/test-time.c
@@ -0,0 +1,35 @@
+/* Test of <time.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <time.h>
+
+#include "verify.h"
+
+struct timespec a;
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-unistd.c b/tests/gnu/test-unistd.c
new file mode 100755
index 00000000..ec02eeef
--- /dev/null
+++ b/tests/gnu/test-unistd.c
@@ -0,0 +1,56 @@
+/* Test of <unistd.h> substitute.
+   Copyright (C) 2007, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <unistd.h>
+
+#include "verify.h"
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+/* Check that the various SEEK_* macros are defined.  */
+int sk[] = { SEEK_CUR, SEEK_END, SEEK_SET };
+
+/* Check that the various *_FILENO macros are defined.  */
+#if ! (defined STDIN_FILENO                                     \
+       && (STDIN_FILENO + STDOUT_FILENO + STDERR_FILENO == 3))
+missing or broken *_FILENO macros
+#endif
+
+/* Check that the types are all defined.  */
+size_t t1;
+ssize_t t2;
+#ifdef TODO /* Not implemented in gnulib yet */
+uid_t t3;
+gid_t t4;
+#endif
+off_t t5;
+pid_t t6;
+#ifdef TODO
+useconds_t t7;
+intptr_t t8;
+#endif
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-unsetenv.c b/tests/gnu/test-unsetenv.c
new file mode 100755
index 00000000..7b92ff37
--- /dev/null
+++ b/tests/gnu/test-unsetenv.c
@@ -0,0 +1,61 @@
+/* Tests of unsetenv.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2009.  */
+
+#include <config.h>
+
+#include <stdlib.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (unsetenv, int, (char const *));
+
+#include <errno.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "macros.h"
+
+int
+main (void)
+{
+  char entry[] = "b=2";
+
+  /* Test removal when multiple entries present.  */
+  ASSERT (putenv ((char *) "a=1") == 0);
+  ASSERT (putenv (entry) == 0);
+  entry[0] = 'a'; /* Unspecified what getenv("a") would be at this point.  */
+  ASSERT (unsetenv ("a") == 0); /* Both entries will be removed.  */
+  ASSERT (getenv ("a") == NULL);
+  ASSERT (unsetenv ("a") == 0);
+
+  /* Required to fail with EINVAL.  */
+  errno = 0;
+  ASSERT (unsetenv ("") == -1);
+  ASSERT (errno == EINVAL);
+  errno = 0;
+  ASSERT (unsetenv ("a=b") == -1);
+  ASSERT (errno == EINVAL);
+#if 0
+  /* glibc and gnulib's implementation guarantee this, but POSIX no
+     longer requires it: http://austingroupbugs.net/view.php?id=185  */
+  errno = 0;
+  ASSERT (unsetenv (NULL) == -1);
+  ASSERT (errno == EINVAL);
+#endif
+
+  return 0;
+}
diff --git a/tests/gnu/test-update-copyright.sh b/tests/gnu/test-update-copyright.sh
new file mode 100755
index 00000000..2d1022a9
--- /dev/null
+++ b/tests/gnu/test-update-copyright.sh
@@ -0,0 +1,526 @@
+#!/bin/sh
+# Test suite for update-copyright.
+# Copyright (C) 2009-2010 Free Software Foundation, Inc.
+# This file is part of the GNUlib Library.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+diffout=`diff -u /dev/null /dev/null 2>&1`
+if test x"$diffout" = x"" && test $? -eq 0; then
+  compare() { diff -u "$@"; }
+else
+  compare() { cmp "$@"; }
+fi
+
+TMP_BASE=update-copyright.test
+trap 'rm -f $TMP_BASE*' 0 1 2 3 15
+
+## --------------------------------- ##
+## Skip if user does not have perl.  ##
+## --------------------------------- ##
+
+TMP=$TMP_BASE
+s=$TMP-script
+cat <<\EOF > $s
+eval '(exit $?0)' && eval 'exec perl -wS -0777 -pi "$0" ${1+"$@"}'
+  & eval 'exec perl -wS -0777 -pi "$0" $argv:q'
+    if 0;
+s/a/b/
+EOF
+chmod a+x $s
+echo a > $TMP-in
+./$s $TMP-in 2>/dev/null && test b = "`cat $TMP-in 2>/dev/null`" ||
+  {
+    printf '%s\n' "$0: skipping this test;" \
+      'your system has insufficient support for Perl' 1>&2
+    exit 77
+  }
+
+# Do not let a different envvar setting perturb results.
+UPDATE_COPYRIGHT_MAX_LINE_LENGTH=72
+export UPDATE_COPYRIGHT_MAX_LINE_LENGTH
+
+## ----------------------------- ##
+## Examples from documentation.  ##
+## ----------------------------- ##
+
+TMP=$TMP_BASE-ex
+cat > $TMP.1 <<EOF
+Copyright @copyright{} 1990-2005, 2007-2009 Free Software
+Foundation, Inc.
+EOF
+cat > $TMP.2 <<EOF
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+cat > $TMP.3 <<EOF
+/*
+ * Copyright &copy; 90,2005,2007-2009
+ * Free Software Foundation, Inc.
+ */
+EOF
+cat > $TMP.4 <<EOF
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+EOF
+cat > $TMP.5 <<EOF
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+cat > $TMP.6 <<EOF
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2009 Free Software Foundation,
+Inc.
+EOF
+cat > $TMP.7 <<EOF
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+
+rm -f $TMP.*.bak
+UPDATE_COPYRIGHT_YEAR=2009 \
+  update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: FSF copyright statement not found
+$TMP.5: warning: FSF copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990-2005, 2007-2009 Free Software
+Foundation, Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 90,2005,2007-2009
+ * Free Software Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2009 Free Software Foundation,
+Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2009 Free Software
+# Foundation, Inc.
+EOF
+
+rm -f $TMP.*.bak
+UPDATE_COPYRIGHT_YEAR=2010 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+  update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: FSF copyright statement not found
+$TMP.5: warning: FSF copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990-2005, 2007-2010 Free Software Foundation,
+Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 1990, 2005, 2007-2010 Free Software Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+
+Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990-2005, 2007-2010 Free Software Foundation, Inc.
+EOF
+
+rm -f $TMP.*.bak
+UPDATE_COPYRIGHT_YEAR=2010 UPDATE_COPYRIGHT_FORCE=1 \
+  update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP.4: warning: FSF copyright statement not found
+$TMP.5: warning: FSF copyright statement not found
+EOF
+compare - $TMP.1 <<EOF || exit 1
+Copyright @copyright{} 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010
+Free Software Foundation, Inc.
+EOF
+compare - $TMP.2 <<EOF || exit 1
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+# Software Foundation, Inc.
+EOF
+compare - $TMP.3 <<EOF || exit 1
+/*
+ * Copyright &copy; 1990, 2005, 2007, 2008, 2009, 2010 Free Software
+ * Foundation, Inc.
+ */
+EOF
+compare - $TMP.4 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+EOF
+compare - $TMP.5 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+EOF
+compare - $TMP.6 <<EOF || exit 1
+## Copyright (C) 1990-2005, 2007-2009 Free Software
+#  Foundation, Inc.
+
+Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+Software Foundation, Inc.
+EOF
+compare - $TMP.7 <<EOF || exit 1
+Copyright (C) 1990-2005, 2007-2009 Acme, Inc.
+
+# Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+# 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free
+# Software Foundation, Inc.
+EOF
+
+rm $TMP*
+
+## -------------- ##
+## Current year.  ##
+## -------------- ##
+
+TMP=$TMP_BASE-current-year
+YEAR=`date +%Y`
+cat > $TMP <<EOF
+'\" Copyright (C) 2006
+'\" Free Software Foundation,
+'\" Inc.
+EOF
+update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+'\" Copyright (C) 2006, $YEAR Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------ ##
+## Surrounding text.  ##
+## ------------------ ##
+
+TMP=$TMP_BASE-surrounding-text
+cat > $TMP <<EOF
+    Undisturbed text.
+dnl Undisturbed text.
+dnl Copyright (C) 89
+dnl Free Software Foundation, Inc.
+dnl   Undisturbed text.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+    Undisturbed text.
+dnl Undisturbed text.
+dnl Copyright (C) 1989, 2010 Free Software Foundation, Inc.
+dnl   Undisturbed text.
+EOF
+rm $TMP*
+
+## --------------- ##
+## Widest prefix.  ##
+## --------------- ##
+
+TMP=$TMP_BASE-widest-prefix
+cat > $TMP <<EOF
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#### 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#### 2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984,
+#### 1985, 1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
+#### 2006, 2007, 2008, 2010 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+#### Copyright (C) 1976-1988, 1999-2008, 2010-2011 Free Software
+#### Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------- ##
+## Prefix too large.  ##
+## ------------------- ##
+
+TMP=$TMP_BASE-prefix-too-large
+cat > $TMP <<EOF
+####  Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+####  1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+####  2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP: warning: FSF copyright statement not found
+EOF
+compare - $TMP <<EOF || exit 1
+####  Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+####  1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+####  2008 Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------- ##
+## Blank lines.  ##
+## ------------- ##
+
+TMP=$TMP_BASE-blank-lines
+cat > $TMP <<EOF
+#Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#
+#1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#2008 Free Software Foundation, Inc.
+
+Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+
+1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare - $TMP-stderr <<EOF || exit 1
+$TMP: warning: FSF copyright statement not found
+EOF
+compare - $TMP <<EOF || exit 1
+#Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+#
+#1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+#2008 Free Software Foundation, Inc.
+
+Copyright (C) 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985,
+
+1986, 1987, 1988, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
+2008 Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## -------------- ##
+## Leading tabs.  ##
+## -------------- ##
+
+TMP=$TMP_BASE-leading-tabs
+cat > $TMP <<EOF
+	Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 98,
+	 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Free
+	Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+	Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996,
+	1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+	2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+	Copyright (C) 1987-1988, 1991-2011 Free Software Foundation,
+	Inc.
+EOF
+rm $TMP*
+
+## -------------------- ##
+## Unusual whitespace.  ##
+## -------------------- ##
+
+TMP=$TMP_BASE-unusual-ws
+cat > $TMP <<EOF
+		# Copyright (C) 87-88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+		# 98, 1999, 2000, 2001, 2002, 2003,     		  2004, 2005, 2006, 2007, 2008,
+		# 2009 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+		# Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994,
+		# 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+		# 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software
+		# Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2011 UPDATE_COPYRIGHT_USE_INTERVALS=1 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+		# Copyright (C) 1987-1988, 1991-2011 Free Software
+		# Foundation, Inc.
+EOF
+rm $TMP*
+
+## --------- ##
+## DOS EOL.  ##
+## --------- ##
+
+TMP=$TMP_BASE-dos-eol
+tr @ '\015' > $TMP <<\EOF
+Rem Copyright (C) 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
+Rem 98, 1999, 2000, 2001, 2002, 2003,  2004, 2005, 2006, 2007, 2008,@
+Rem 2009 Free Software Foundation, Inc.@
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+tr @ '\015' > $TMP-exp <<\EOF
+Rem Copyright (C) 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,@
+Rem 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,@
+Rem 2009, 2010 Free Software Foundation, Inc.@
+EOF
+compare $TMP-exp $TMP || exit 1
+rm $TMP*
+
+## --------------- ##
+## Omitted "(C)".  ##
+## --------------- ##
+
+TMP=$TMP_BASE-omitted-circle-c
+cat > $TMP <<EOF
+  Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+  98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+  2009 Free Software Foundation, Inc.
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP <<EOF || exit 1
+  Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
+  1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
+  Free Software Foundation, Inc.
+EOF
+rm $TMP*
+
+## ------------------ ##
+## C-style comments.  ##
+## ------------------ ##
+
+TMP=$TMP_BASE-c-style-comments
+cat > $TMP.star <<EOF
+/*  Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ *  98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ *  2009 Free Software Foundation, Inc.  */
+EOF
+cat > $TMP.space <<EOF
+  /*Copyright 87, 88, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+    98, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+    2009 Free Software Foundation, Inc.  */
+EOF
+cat > $TMP.single-line <<EOF
+/*   Copyright 87, 1991, 1992 Free Software Foundation, Inc.  */
+EOF
+cat > $TMP.single-line-wrapped <<EOF
+ /* Copyright 1988, 1991, 1992, 1993 Free Software Foundation, Inc.  */
+EOF
+cat > $TMP.extra-text-star <<EOF
+ /* Copyright 1987, 1988, 1991, 1992 Free Software Foundation, Inc.  End
+  * More comments.  */
+EOF
+cat > $TMP.extra-text-space <<EOF
+ /* Copyright 1987, 1988, 1991, 1992 Free Software Foundation, Inc. ***
+    * End of comments. */
+EOF
+UPDATE_COPYRIGHT_YEAR=2010 \
+  update-copyright $TMP.* 1> $TMP-stdout 2> $TMP-stderr
+compare /dev/null $TMP-stdout || exit 1
+compare /dev/null $TMP-stderr || exit 1
+compare - $TMP.star <<EOF || exit 1
+/*  Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+ *  1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+ *  2009, 2010 Free Software Foundation, Inc.  */
+EOF
+compare - $TMP.space <<EOF || exit 1
+  /*Copyright 1987, 1988, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
+    1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
+    2009, 2010 Free Software Foundation, Inc.  */
+EOF
+compare - $TMP.single-line <<EOF || exit 1
+/*   Copyright 1987, 1991, 1992, 2010 Free Software Foundation, Inc.  */
+EOF
+compare - $TMP.single-line-wrapped <<EOF || exit 1
+ /* Copyright 1988, 1991, 1992, 1993, 2010 Free Software Foundation,
+  * Inc.  */
+EOF
+compare - $TMP.extra-text-star <<EOF || exit 1
+ /* Copyright 1987, 1988, 1991, 1992, 2010 Free Software Foundation,
+  * Inc.  End
+  * More comments.  */
+EOF
+compare - $TMP.extra-text-space <<EOF || exit 1
+ /* Copyright 1987, 1988, 1991, 1992, 2010 Free Software Foundation,
+    Inc. ***
+    * End of comments. */
+EOF
+rm $TMP*
+
+exit 0
diff --git a/tests/gnu/test-vasnprintf-posix.c b/tests/gnu/test-vasnprintf-posix.c
new file mode 100755
index 00000000..74ba1653
--- /dev/null
+++ b/tests/gnu/test-vasnprintf-posix.c
@@ -0,0 +1,3671 @@
+/* Test of POSIX compatible vasnprintf() and asnprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "vasnprintf.h"
+
+#include <float.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+#include "nan.h"
+
+/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0.  */
+static int
+have_minus_zero ()
+{
+  static double plus_zero = 0.0;
+  double minus_zero = - plus_zero;
+  return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
+}
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zerod instead.  */
+double zerod = 0.0;
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zerol instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zerol (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zerol compute_minus_zerol ()
+#else
+long double minus_zerol = -0.0L;
+#endif
+
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+   of 'unsigned int' words.  */
+#ifdef WORDS_BIGENDIAN
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+      ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+      (unsigned int) (mantlo) << 16                                        \
+    }
+#else
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { mantlo, manthi, exponent }
+#endif
+
+static int
+strmatch (const char *pattern, const char *string)
+{
+  if (strlen (pattern) != strlen (string))
+    return 0;
+  for (; *pattern != '\0'; pattern++, string++)
+    if (*pattern != '*' && *string != *pattern)
+      return 0;
+  return 1;
+}
+
+/* Test whether string[start_index..end_index-1] is a valid textual
+   representation of NaN.  */
+static int
+strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
+{
+  if (start_index < end_index)
+    {
+      if (string[start_index] == '-')
+        start_index++;
+      if (start_index + 3 <= end_index
+          && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
+        {
+          start_index += 3;
+          if (start_index == end_index
+              || (string[start_index] == '(' && string[end_index - 1] == ')'))
+            return 1;
+        }
+    }
+  return 0;
+}
+
+static void
+test_function (char * (*my_asnprintf) (char *, size_t *, const char *, ...))
+{
+  char buf[8];
+  int size;
+
+  /* Test return value convention.  */
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length = size;
+      char *result = my_asnprintf (NULL, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      free (result);
+    }
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length;
+      char *result;
+
+      memcpy (buf, "DEADBEEF", 8);
+      length = size;
+      result = my_asnprintf (buf, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      if (size < 6)
+        ASSERT (result != buf);
+      ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+      if (result != buf)
+        free (result);
+    }
+
+  /* Test support of size specifiers as in C99.  */
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345671 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%zu %d", (size_t) 12345672, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345672 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345673 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", (long double) 1.5, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.5 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", 3.1416015625, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%A %d", -3.1416015625, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%a %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding near the decimal point.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.0a %d", 1.5, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 0.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.0a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 1.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.1a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 2.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 3.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.3a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.3a %d", 1.49999, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.1a %d", 1.999, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Large precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.50a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#a %d", 1.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050a %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", 3.1416015625L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LA %d", -3.1416015625L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Rounding near the decimal point.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.0La %d", 1.5L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 0.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.0La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 1.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.1La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 2.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 3.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.3La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.3La %d", 1.49999L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
+       glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.1La %d", 1.999L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Large precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.50La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#La %d", 1.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050La %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %f format directive.  */
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "0.000000" },
+        { 1.234321234321234e-36, "0.000000" },
+        { 1.234321234321234e-35, "0.000000" },
+        { 1.234321234321234e-34, "0.000000" },
+        { 1.234321234321234e-33, "0.000000" },
+        { 1.234321234321234e-32, "0.000000" },
+        { 1.234321234321234e-31, "0.000000" },
+        { 1.234321234321234e-30, "0.000000" },
+        { 1.234321234321234e-29, "0.000000" },
+        { 1.234321234321234e-28, "0.000000" },
+        { 1.234321234321234e-27, "0.000000" },
+        { 1.234321234321234e-26, "0.000000" },
+        { 1.234321234321234e-25, "0.000000" },
+        { 1.234321234321234e-24, "0.000000" },
+        { 1.234321234321234e-23, "0.000000" },
+        { 1.234321234321234e-22, "0.000000" },
+        { 1.234321234321234e-21, "0.000000" },
+        { 1.234321234321234e-20, "0.000000" },
+        { 1.234321234321234e-19, "0.000000" },
+        { 1.234321234321234e-18, "0.000000" },
+        { 1.234321234321234e-17, "0.000000" },
+        { 1.234321234321234e-16, "0.000000" },
+        { 1.234321234321234e-15, "0.000000" },
+        { 1.234321234321234e-14, "0.000000" },
+        { 1.234321234321234e-13, "0.000000" },
+        { 1.234321234321234e-12, "0.000000" },
+        { 1.234321234321234e-11, "0.000000" },
+        { 1.234321234321234e-10, "0.000000" },
+        { 1.234321234321234e-9, "0.000000" },
+        { 1.234321234321234e-8, "0.000000" },
+        { 1.234321234321234e-7, "0.000000" },
+        { 1.234321234321234e-6, "0.000001" },
+        { 1.234321234321234e-5, "0.000012" },
+        { 1.234321234321234e-4, "0.000123" },
+        { 1.234321234321234e-3, "0.001234" },
+        { 1.234321234321234e-2, "0.012343" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.234321" },
+        { 1.234321234321234e1, "12.343212" },
+        { 1.234321234321234e2, "123.432123" },
+        { 1.234321234321234e3, "1234.321234" },
+        { 1.234321234321234e4, "12343.212343" },
+        { 1.234321234321234e5, "123432.123432" },
+        { 1.234321234321234e6, "1234321.234321" },
+        { 1.234321234321234e7, "12343212.343212" },
+        { 1.234321234321234e8, "123432123.432123" },
+        { 1.234321234321234e9, "1234321234.321234" },
+        { 1.234321234321234e10, "12343212343.2123**" },
+        { 1.234321234321234e11, "123432123432.123***" },
+        { 1.234321234321234e12, "1234321234321.23****" },
+        { 1.234321234321234e13, "12343212343212.3*****" },
+        { 1.234321234321234e14, "123432123432123.******" },
+        { 1.234321234321234e15, "1234321234321234.000000" },
+        { 1.234321234321234e16, "123432123432123**.000000" },
+        { 1.234321234321234e17, "123432123432123***.000000" },
+        { 1.234321234321234e18, "123432123432123****.000000" },
+        { 1.234321234321234e19, "123432123432123*****.000000" },
+        { 1.234321234321234e20, "123432123432123******.000000" },
+        { 1.234321234321234e21, "123432123432123*******.000000" },
+        { 1.234321234321234e22, "123432123432123********.000000" },
+        { 1.234321234321234e23, "123432123432123*********.000000" },
+        { 1.234321234321234e24, "123432123432123**********.000000" },
+        { 1.234321234321234e25, "123432123432123***********.000000" },
+        { 1.234321234321234e26, "123432123432123************.000000" },
+        { 1.234321234321234e27, "123432123432123*************.000000" },
+        { 1.234321234321234e28, "123432123432123**************.000000" },
+        { 1.234321234321234e29, "123432123432123***************.000000" },
+        { 1.234321234321234e30, "123432123432123****************.000000" },
+        { 1.234321234321234e31, "123432123432123*****************.000000" },
+        { 1.234321234321234e32, "123432123432123******************.000000" },
+        { 1.234321234321234e33, "123432123432123*******************.000000" },
+        { 1.234321234321234e34, "123432123432123********************.000000" },
+        { 1.234321234321234e35, "123432123432123*********************.000000" },
+        { 1.234321234321234e36, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%f", data[k].value);
+        ASSERT (result != NULL);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%f %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015f %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050f %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.f %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2f %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2f %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "0.000000" },
+        { 1.234321234321234e-36L, "0.000000" },
+        { 1.234321234321234e-35L, "0.000000" },
+        { 1.234321234321234e-34L, "0.000000" },
+        { 1.234321234321234e-33L, "0.000000" },
+        { 1.234321234321234e-32L, "0.000000" },
+        { 1.234321234321234e-31L, "0.000000" },
+        { 1.234321234321234e-30L, "0.000000" },
+        { 1.234321234321234e-29L, "0.000000" },
+        { 1.234321234321234e-28L, "0.000000" },
+        { 1.234321234321234e-27L, "0.000000" },
+        { 1.234321234321234e-26L, "0.000000" },
+        { 1.234321234321234e-25L, "0.000000" },
+        { 1.234321234321234e-24L, "0.000000" },
+        { 1.234321234321234e-23L, "0.000000" },
+        { 1.234321234321234e-22L, "0.000000" },
+        { 1.234321234321234e-21L, "0.000000" },
+        { 1.234321234321234e-20L, "0.000000" },
+        { 1.234321234321234e-19L, "0.000000" },
+        { 1.234321234321234e-18L, "0.000000" },
+        { 1.234321234321234e-17L, "0.000000" },
+        { 1.234321234321234e-16L, "0.000000" },
+        { 1.234321234321234e-15L, "0.000000" },
+        { 1.234321234321234e-14L, "0.000000" },
+        { 1.234321234321234e-13L, "0.000000" },
+        { 1.234321234321234e-12L, "0.000000" },
+        { 1.234321234321234e-11L, "0.000000" },
+        { 1.234321234321234e-10L, "0.000000" },
+        { 1.234321234321234e-9L, "0.000000" },
+        { 1.234321234321234e-8L, "0.000000" },
+        { 1.234321234321234e-7L, "0.000000" },
+        { 1.234321234321234e-6L, "0.000001" },
+        { 1.234321234321234e-5L, "0.000012" },
+        { 1.234321234321234e-4L, "0.000123" },
+        { 1.234321234321234e-3L, "0.001234" },
+        { 1.234321234321234e-2L, "0.012343" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.234321" },
+        { 1.234321234321234e1L, "12.343212" },
+        { 1.234321234321234e2L, "123.432123" },
+        { 1.234321234321234e3L, "1234.321234" },
+        { 1.234321234321234e4L, "12343.212343" },
+        { 1.234321234321234e5L, "123432.123432" },
+        { 1.234321234321234e6L, "1234321.234321" },
+        { 1.234321234321234e7L, "12343212.343212" },
+        { 1.234321234321234e8L, "123432123.432123" },
+        { 1.234321234321234e9L, "1234321234.321234" },
+        { 1.234321234321234e10L, "12343212343.2123**" },
+        { 1.234321234321234e11L, "123432123432.123***" },
+        { 1.234321234321234e12L, "1234321234321.23****" },
+        { 1.234321234321234e13L, "12343212343212.3*****" },
+        { 1.234321234321234e14L, "123432123432123.******" },
+        { 1.234321234321234e15L, "1234321234321234.000000" },
+        { 1.234321234321234e16L, "123432123432123**.000000" },
+        { 1.234321234321234e17L, "123432123432123***.000000" },
+        { 1.234321234321234e18L, "123432123432123****.000000" },
+        { 1.234321234321234e19L, "123432123432123*****.000000" },
+        { 1.234321234321234e20L, "123432123432123******.000000" },
+        { 1.234321234321234e21L, "123432123432123*******.000000" },
+        { 1.234321234321234e22L, "123432123432123********.000000" },
+        { 1.234321234321234e23L, "123432123432123*********.000000" },
+        { 1.234321234321234e24L, "123432123432123**********.000000" },
+        { 1.234321234321234e25L, "123432123432123***********.000000" },
+        { 1.234321234321234e26L, "123432123432123************.000000" },
+        { 1.234321234321234e27L, "123432123432123*************.000000" },
+        { 1.234321234321234e28L, "123432123432123**************.000000" },
+        { 1.234321234321234e29L, "123432123432123***************.000000" },
+        { 1.234321234321234e30L, "123432123432123****************.000000" },
+        { 1.234321234321234e31L, "123432123432123*****************.000000" },
+        { 1.234321234321234e32L, "123432123432123******************.000000" },
+        { 1.234321234321234e33L, "123432123432123*******************.000000" },
+        { 1.234321234321234e34L, "123432123432123********************.000000" },
+        { 1.234321234321234e35L, "123432123432123*********************.000000" },
+        { 1.234321234321234e36L, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%Lf", data[k].value);
+        ASSERT (result != NULL);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2Lf %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2Lf %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %F format directive.  */
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%F %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015F %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.F %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2F %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2F %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%LF %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2LF %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.2LF %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %e format directive.  */
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.234321e-37" },
+        { 1.234321234321234e-36, "1.234321e-36" },
+        { 1.234321234321234e-35, "1.234321e-35" },
+        { 1.234321234321234e-34, "1.234321e-34" },
+        { 1.234321234321234e-33, "1.234321e-33" },
+        { 1.234321234321234e-32, "1.234321e-32" },
+        { 1.234321234321234e-31, "1.234321e-31" },
+        { 1.234321234321234e-30, "1.234321e-30" },
+        { 1.234321234321234e-29, "1.234321e-29" },
+        { 1.234321234321234e-28, "1.234321e-28" },
+        { 1.234321234321234e-27, "1.234321e-27" },
+        { 1.234321234321234e-26, "1.234321e-26" },
+        { 1.234321234321234e-25, "1.234321e-25" },
+        { 1.234321234321234e-24, "1.234321e-24" },
+        { 1.234321234321234e-23, "1.234321e-23" },
+        { 1.234321234321234e-22, "1.234321e-22" },
+        { 1.234321234321234e-21, "1.234321e-21" },
+        { 1.234321234321234e-20, "1.234321e-20" },
+        { 1.234321234321234e-19, "1.234321e-19" },
+        { 1.234321234321234e-18, "1.234321e-18" },
+        { 1.234321234321234e-17, "1.234321e-17" },
+        { 1.234321234321234e-16, "1.234321e-16" },
+        { 1.234321234321234e-15, "1.234321e-15" },
+        { 1.234321234321234e-14, "1.234321e-14" },
+        { 1.234321234321234e-13, "1.234321e-13" },
+        { 1.234321234321234e-12, "1.234321e-12" },
+        { 1.234321234321234e-11, "1.234321e-11" },
+        { 1.234321234321234e-10, "1.234321e-10" },
+        { 1.234321234321234e-9, "1.234321e-09" },
+        { 1.234321234321234e-8, "1.234321e-08" },
+        { 1.234321234321234e-7, "1.234321e-07" },
+        { 1.234321234321234e-6, "1.234321e-06" },
+        { 1.234321234321234e-5, "1.234321e-05" },
+        { 1.234321234321234e-4, "1.234321e-04" },
+        { 1.234321234321234e-3, "1.234321e-03" },
+        { 1.234321234321234e-2, "1.234321e-02" },
+        { 1.234321234321234e-1, "1.234321e-01" },
+        { 1.234321234321234, "1.234321e+00" },
+        { 1.234321234321234e1, "1.234321e+01" },
+        { 1.234321234321234e2, "1.234321e+02" },
+        { 1.234321234321234e3, "1.234321e+03" },
+        { 1.234321234321234e4, "1.234321e+04" },
+        { 1.234321234321234e5, "1.234321e+05" },
+        { 1.234321234321234e6, "1.234321e+06" },
+        { 1.234321234321234e7, "1.234321e+07" },
+        { 1.234321234321234e8, "1.234321e+08" },
+        { 1.234321234321234e9, "1.234321e+09" },
+        { 1.234321234321234e10, "1.234321e+10" },
+        { 1.234321234321234e11, "1.234321e+11" },
+        { 1.234321234321234e12, "1.234321e+12" },
+        { 1.234321234321234e13, "1.234321e+13" },
+        { 1.234321234321234e14, "1.234321e+14" },
+        { 1.234321234321234e15, "1.234321e+15" },
+        { 1.234321234321234e16, "1.234321e+16" },
+        { 1.234321234321234e17, "1.234321e+17" },
+        { 1.234321234321234e18, "1.234321e+18" },
+        { 1.234321234321234e19, "1.234321e+19" },
+        { 1.234321234321234e20, "1.234321e+20" },
+        { 1.234321234321234e21, "1.234321e+21" },
+        { 1.234321234321234e22, "1.234321e+22" },
+        { 1.234321234321234e23, "1.234321e+23" },
+        { 1.234321234321234e24, "1.234321e+24" },
+        { 1.234321234321234e25, "1.234321e+25" },
+        { 1.234321234321234e26, "1.234321e+26" },
+        { 1.234321234321234e27, "1.234321e+27" },
+        { 1.234321234321234e28, "1.234321e+28" },
+        { 1.234321234321234e29, "1.234321e+29" },
+        { 1.234321234321234e30, "1.234321e+30" },
+        { 1.234321234321234e31, "1.234321e+31" },
+        { 1.234321234321234e32, "1.234321e+32" },
+        { 1.234321234321234e33, "1.234321e+33" },
+        { 1.234321234321234e34, "1.234321e+34" },
+        { 1.234321234321234e35, "1.234321e+35" },
+        { 1.234321234321234e36, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%e", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%e %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%15e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-15e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.e %d", 9.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015e %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050e %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.e %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4e %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4e %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.234321e-37" },
+        { 1.234321234321234e-36L, "1.234321e-36" },
+        { 1.234321234321234e-35L, "1.234321e-35" },
+        { 1.234321234321234e-34L, "1.234321e-34" },
+        { 1.234321234321234e-33L, "1.234321e-33" },
+        { 1.234321234321234e-32L, "1.234321e-32" },
+        { 1.234321234321234e-31L, "1.234321e-31" },
+        { 1.234321234321234e-30L, "1.234321e-30" },
+        { 1.234321234321234e-29L, "1.234321e-29" },
+        { 1.234321234321234e-28L, "1.234321e-28" },
+        { 1.234321234321234e-27L, "1.234321e-27" },
+        { 1.234321234321234e-26L, "1.234321e-26" },
+        { 1.234321234321234e-25L, "1.234321e-25" },
+        { 1.234321234321234e-24L, "1.234321e-24" },
+        { 1.234321234321234e-23L, "1.234321e-23" },
+        { 1.234321234321234e-22L, "1.234321e-22" },
+        { 1.234321234321234e-21L, "1.234321e-21" },
+        { 1.234321234321234e-20L, "1.234321e-20" },
+        { 1.234321234321234e-19L, "1.234321e-19" },
+        { 1.234321234321234e-18L, "1.234321e-18" },
+        { 1.234321234321234e-17L, "1.234321e-17" },
+        { 1.234321234321234e-16L, "1.234321e-16" },
+        { 1.234321234321234e-15L, "1.234321e-15" },
+        { 1.234321234321234e-14L, "1.234321e-14" },
+        { 1.234321234321234e-13L, "1.234321e-13" },
+        { 1.234321234321234e-12L, "1.234321e-12" },
+        { 1.234321234321234e-11L, "1.234321e-11" },
+        { 1.234321234321234e-10L, "1.234321e-10" },
+        { 1.234321234321234e-9L, "1.234321e-09" },
+        { 1.234321234321234e-8L, "1.234321e-08" },
+        { 1.234321234321234e-7L, "1.234321e-07" },
+        { 1.234321234321234e-6L, "1.234321e-06" },
+        { 1.234321234321234e-5L, "1.234321e-05" },
+        { 1.234321234321234e-4L, "1.234321e-04" },
+        { 1.234321234321234e-3L, "1.234321e-03" },
+        { 1.234321234321234e-2L, "1.234321e-02" },
+        { 1.234321234321234e-1L, "1.234321e-01" },
+        { 1.234321234321234L, "1.234321e+00" },
+        { 1.234321234321234e1L, "1.234321e+01" },
+        { 1.234321234321234e2L, "1.234321e+02" },
+        { 1.234321234321234e3L, "1.234321e+03" },
+        { 1.234321234321234e4L, "1.234321e+04" },
+        { 1.234321234321234e5L, "1.234321e+05" },
+        { 1.234321234321234e6L, "1.234321e+06" },
+        { 1.234321234321234e7L, "1.234321e+07" },
+        { 1.234321234321234e8L, "1.234321e+08" },
+        { 1.234321234321234e9L, "1.234321e+09" },
+        { 1.234321234321234e10L, "1.234321e+10" },
+        { 1.234321234321234e11L, "1.234321e+11" },
+        { 1.234321234321234e12L, "1.234321e+12" },
+        { 1.234321234321234e13L, "1.234321e+13" },
+        { 1.234321234321234e14L, "1.234321e+14" },
+        { 1.234321234321234e15L, "1.234321e+15" },
+        { 1.234321234321234e16L, "1.234321e+16" },
+        { 1.234321234321234e17L, "1.234321e+17" },
+        { 1.234321234321234e18L, "1.234321e+18" },
+        { 1.234321234321234e19L, "1.234321e+19" },
+        { 1.234321234321234e20L, "1.234321e+20" },
+        { 1.234321234321234e21L, "1.234321e+21" },
+        { 1.234321234321234e22L, "1.234321e+22" },
+        { 1.234321234321234e23L, "1.234321e+23" },
+        { 1.234321234321234e24L, "1.234321e+24" },
+        { 1.234321234321234e25L, "1.234321e+25" },
+        { 1.234321234321234e26L, "1.234321e+26" },
+        { 1.234321234321234e27L, "1.234321e+27" },
+        { 1.234321234321234e28L, "1.234321e+28" },
+        { 1.234321234321234e29L, "1.234321e+29" },
+        { 1.234321234321234e30L, "1.234321e+30" },
+        { 1.234321234321234e31L, "1.234321e+31" },
+        { 1.234321234321234e32L, "1.234321e+32" },
+        { 1.234321234321234e33L, "1.234321e+33" },
+        { 1.234321234321234e34L, "1.234321e+34" },
+        { 1.234321234321234e35L, "1.234321e+35" },
+        { 1.234321234321234e36L, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%Le", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.Le %d", 9.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050Le %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4Le %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4Le %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %g format directive.  */
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.23432e-37" },
+        { 1.234321234321234e-36, "1.23432e-36" },
+        { 1.234321234321234e-35, "1.23432e-35" },
+        { 1.234321234321234e-34, "1.23432e-34" },
+        { 1.234321234321234e-33, "1.23432e-33" },
+        { 1.234321234321234e-32, "1.23432e-32" },
+        { 1.234321234321234e-31, "1.23432e-31" },
+        { 1.234321234321234e-30, "1.23432e-30" },
+        { 1.234321234321234e-29, "1.23432e-29" },
+        { 1.234321234321234e-28, "1.23432e-28" },
+        { 1.234321234321234e-27, "1.23432e-27" },
+        { 1.234321234321234e-26, "1.23432e-26" },
+        { 1.234321234321234e-25, "1.23432e-25" },
+        { 1.234321234321234e-24, "1.23432e-24" },
+        { 1.234321234321234e-23, "1.23432e-23" },
+        { 1.234321234321234e-22, "1.23432e-22" },
+        { 1.234321234321234e-21, "1.23432e-21" },
+        { 1.234321234321234e-20, "1.23432e-20" },
+        { 1.234321234321234e-19, "1.23432e-19" },
+        { 1.234321234321234e-18, "1.23432e-18" },
+        { 1.234321234321234e-17, "1.23432e-17" },
+        { 1.234321234321234e-16, "1.23432e-16" },
+        { 1.234321234321234e-15, "1.23432e-15" },
+        { 1.234321234321234e-14, "1.23432e-14" },
+        { 1.234321234321234e-13, "1.23432e-13" },
+        { 1.234321234321234e-12, "1.23432e-12" },
+        { 1.234321234321234e-11, "1.23432e-11" },
+        { 1.234321234321234e-10, "1.23432e-10" },
+        { 1.234321234321234e-9, "1.23432e-09" },
+        { 1.234321234321234e-8, "1.23432e-08" },
+        { 1.234321234321234e-7, "1.23432e-07" },
+        { 1.234321234321234e-6, "1.23432e-06" },
+        { 1.234321234321234e-5, "1.23432e-05" },
+        { 1.234321234321234e-4, "0.000123432" },
+        { 1.234321234321234e-3, "0.00123432" },
+        { 1.234321234321234e-2, "0.0123432" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.23432" },
+        { 1.234321234321234e1, "12.3432" },
+        { 1.234321234321234e2, "123.432" },
+        { 1.234321234321234e3, "1234.32" },
+        { 1.234321234321234e4, "12343.2" },
+        { 1.234321234321234e5, "123432" },
+        { 1.234321234321234e6, "1.23432e+06" },
+        { 1.234321234321234e7, "1.23432e+07" },
+        { 1.234321234321234e8, "1.23432e+08" },
+        { 1.234321234321234e9, "1.23432e+09" },
+        { 1.234321234321234e10, "1.23432e+10" },
+        { 1.234321234321234e11, "1.23432e+11" },
+        { 1.234321234321234e12, "1.23432e+12" },
+        { 1.234321234321234e13, "1.23432e+13" },
+        { 1.234321234321234e14, "1.23432e+14" },
+        { 1.234321234321234e15, "1.23432e+15" },
+        { 1.234321234321234e16, "1.23432e+16" },
+        { 1.234321234321234e17, "1.23432e+17" },
+        { 1.234321234321234e18, "1.23432e+18" },
+        { 1.234321234321234e19, "1.23432e+19" },
+        { 1.234321234321234e20, "1.23432e+20" },
+        { 1.234321234321234e21, "1.23432e+21" },
+        { 1.234321234321234e22, "1.23432e+22" },
+        { 1.234321234321234e23, "1.23432e+23" },
+        { 1.234321234321234e24, "1.23432e+24" },
+        { 1.234321234321234e25, "1.23432e+25" },
+        { 1.234321234321234e26, "1.23432e+26" },
+        { 1.234321234321234e27, "1.23432e+27" },
+        { 1.234321234321234e28, "1.23432e+28" },
+        { 1.234321234321234e29, "1.23432e+29" },
+        { 1.234321234321234e30, "1.23432e+30" },
+        { 1.234321234321234e31, "1.23432e+31" },
+        { 1.234321234321234e32, "1.23432e+32" },
+        { 1.234321234321234e33, "1.23432e+33" },
+        { 1.234321234321234e34, "1.23432e+34" },
+        { 1.234321234321234e35, "1.23432e+35" },
+        { 1.234321234321234e36, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%g", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%g %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.g %d", 9.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010g %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050g %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.g %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.5g %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.5g %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.23432e-37" },
+        { 1.234321234321234e-36L, "1.23432e-36" },
+        { 1.234321234321234e-35L, "1.23432e-35" },
+        { 1.234321234321234e-34L, "1.23432e-34" },
+        { 1.234321234321234e-33L, "1.23432e-33" },
+        { 1.234321234321234e-32L, "1.23432e-32" },
+        { 1.234321234321234e-31L, "1.23432e-31" },
+        { 1.234321234321234e-30L, "1.23432e-30" },
+        { 1.234321234321234e-29L, "1.23432e-29" },
+        { 1.234321234321234e-28L, "1.23432e-28" },
+        { 1.234321234321234e-27L, "1.23432e-27" },
+        { 1.234321234321234e-26L, "1.23432e-26" },
+        { 1.234321234321234e-25L, "1.23432e-25" },
+        { 1.234321234321234e-24L, "1.23432e-24" },
+        { 1.234321234321234e-23L, "1.23432e-23" },
+        { 1.234321234321234e-22L, "1.23432e-22" },
+        { 1.234321234321234e-21L, "1.23432e-21" },
+        { 1.234321234321234e-20L, "1.23432e-20" },
+        { 1.234321234321234e-19L, "1.23432e-19" },
+        { 1.234321234321234e-18L, "1.23432e-18" },
+        { 1.234321234321234e-17L, "1.23432e-17" },
+        { 1.234321234321234e-16L, "1.23432e-16" },
+        { 1.234321234321234e-15L, "1.23432e-15" },
+        { 1.234321234321234e-14L, "1.23432e-14" },
+        { 1.234321234321234e-13L, "1.23432e-13" },
+        { 1.234321234321234e-12L, "1.23432e-12" },
+        { 1.234321234321234e-11L, "1.23432e-11" },
+        { 1.234321234321234e-10L, "1.23432e-10" },
+        { 1.234321234321234e-9L, "1.23432e-09" },
+        { 1.234321234321234e-8L, "1.23432e-08" },
+        { 1.234321234321234e-7L, "1.23432e-07" },
+        { 1.234321234321234e-6L, "1.23432e-06" },
+        { 1.234321234321234e-5L, "1.23432e-05" },
+        { 1.234321234321234e-4L, "0.000123432" },
+        { 1.234321234321234e-3L, "0.00123432" },
+        { 1.234321234321234e-2L, "0.0123432" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.23432" },
+        { 1.234321234321234e1L, "12.3432" },
+        { 1.234321234321234e2L, "123.432" },
+        { 1.234321234321234e3L, "1234.32" },
+        { 1.234321234321234e4L, "12343.2" },
+        { 1.234321234321234e5L, "123432" },
+        { 1.234321234321234e6L, "1.23432e+06" },
+        { 1.234321234321234e7L, "1.23432e+07" },
+        { 1.234321234321234e8L, "1.23432e+08" },
+        { 1.234321234321234e9L, "1.23432e+09" },
+        { 1.234321234321234e10L, "1.23432e+10" },
+        { 1.234321234321234e11L, "1.23432e+11" },
+        { 1.234321234321234e12L, "1.23432e+12" },
+        { 1.234321234321234e13L, "1.23432e+13" },
+        { 1.234321234321234e14L, "1.23432e+14" },
+        { 1.234321234321234e15L, "1.23432e+15" },
+        { 1.234321234321234e16L, "1.23432e+16" },
+        { 1.234321234321234e17L, "1.23432e+17" },
+        { 1.234321234321234e18L, "1.23432e+18" },
+        { 1.234321234321234e19L, "1.23432e+19" },
+        { 1.234321234321234e20L, "1.23432e+20" },
+        { 1.234321234321234e21L, "1.23432e+21" },
+        { 1.234321234321234e22L, "1.23432e+22" },
+        { 1.234321234321234e23L, "1.23432e+23" },
+        { 1.234321234321234e24L, "1.23432e+24" },
+        { 1.234321234321234e25L, "1.23432e+25" },
+        { 1.234321234321234e26L, "1.23432e+26" },
+        { 1.234321234321234e27L, "1.23432e+27" },
+        { 1.234321234321234e28L, "1.23432e+28" },
+        { 1.234321234321234e29L, "1.23432e+29" },
+        { 1.234321234321234e30L, "1.23432e+30" },
+        { 1.234321234321234e31L, "1.23432e+31" },
+        { 1.234321234321234e32L, "1.23432e+32" },
+        { 1.234321234321234e33L, "1.23432e+33" },
+        { 1.234321234321234e34L, "1.23432e+34" },
+        { 1.234321234321234e35L, "1.23432e+35" },
+        { 1.234321234321234e36L, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        size_t length;
+        char *result =
+          my_asnprintf (NULL, &length, "%Lg", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (length == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%-10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%+Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "% Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.Lg %d", 9.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%010Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%050Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.5Lg %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.5Lg %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %n format directive.  */
+
+  {
+    int count = -1;
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%d %n", 123, &count, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "123 ") == 0);
+    ASSERT (length == strlen (result));
+    ASSERT (count == 4);
+    free (result);
+  }
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%2$d %1$d", 33, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "55 33") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the grouping flag.  */
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%'d %d", 1234567, 99);
+    ASSERT (result != NULL);
+    ASSERT (result[strlen (result) - 1] == '9');
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the left-adjust flag.  */
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "a%*sc", -3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "a%-*sc", 3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "a%-*sc", -3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of large precision.  */
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000d %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.*d %d", 4000, 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000d %d", -1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '-');
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[1 + i] == '0');
+    ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000u %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000o %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    size_t length;
+    char *result =
+      my_asnprintf (NULL, &length, "%#.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '0');
+    ASSERT (result[1] == 'x');
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  {
+    char input[5000];
+    size_t length;
+    char *result;
+    size_t i;
+
+    for (i = 0; i < sizeof (input) - 1; i++)
+      input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+    input[i] = '\0';
+    result = my_asnprintf (NULL, &length, "%.4000s %d", input, 99);
+    ASSERT (result != NULL);
+    ASSERT (memcmp (result, input, 4000) == 0);
+    ASSERT (strcmp (result + 4000, " 99") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %s format directive.  */
+
+  /* To verify that these tests succeed, it is necessary to run them under
+     a tool that checks against invalid memory accesses, such as ElectricFence
+     or "valgrind --tool=memcheck".  */
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        char *block;
+        size_t length;
+        char *result;
+
+        block = (char *) malloc (i);
+        memcpy (block, "abcdefgh", i);
+        result = my_asnprintf (NULL, &length, "%.*s", (int) i, block);
+        ASSERT (result != NULL);
+        ASSERT (memcmp (result, block, i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (length == strlen (result));
+        free (result);
+        free (block);
+      }
+  }
+#if HAVE_WCHAR_T
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        wchar_t *block;
+        size_t j;
+        size_t length;
+        char *result;
+
+        block = (wchar_t *) malloc (i * sizeof (wchar_t));
+        for (j = 0; j < i; j++)
+          block[j] = "abcdefgh"[j];
+        result = my_asnprintf (NULL, &length, "%.*ls", (int) i, block);
+        ASSERT (result != NULL);
+        ASSERT (memcmp (result, "abcdefgh", i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (length == strlen (result));
+        free (result);
+        free (block);
+      }
+  }
+#endif
+}
+
+static char *
+my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
+{
+  va_list args;
+  char *ret;
+
+  va_start (args, format);
+  ret = vasnprintf (resultbuf, lengthp, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasnprintf ()
+{
+  test_function (my_asnprintf);
+}
+
+static void
+test_asnprintf ()
+{
+  test_function (asnprintf);
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasnprintf ();
+  test_asnprintf ();
+  return 0;
+}
diff --git a/tests/gnu/test-vasnprintf-posix2.c b/tests/gnu/test-vasnprintf-posix2.c
new file mode 100755
index 00000000..35b49f86
--- /dev/null
+++ b/tests/gnu/test-vasnprintf-posix2.c
@@ -0,0 +1,63 @@
+/* Test of POSIX compatible vasnprintf() and asnprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "vasnprintf.h"
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+int
+main (int argc, char *argv[])
+{
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  /* Test that a locale dependent decimal point is used.  */
+  {
+    size_t length;
+    char *result = asnprintf (NULL, &length, "%.1a", 1.0);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1,0p+0") == 0
+            || strcmp (result, "0x2,0p-1") == 0
+            || strcmp (result, "0x4,0p-2") == 0
+            || strcmp (result, "0x8,0p-3") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  /* Test that a locale dependent decimal point is used.  */
+  {
+    size_t length;
+    char *result = asnprintf (NULL, &length, "%.1La", 1.0L);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1,0p+0") == 0
+            || strcmp (result, "0x2,0p-1") == 0
+            || strcmp (result, "0x4,0p-2") == 0
+            || strcmp (result, "0x8,0p-3") == 0);
+    ASSERT (length == strlen (result));
+    free (result);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-vasnprintf-posix2.sh b/tests/gnu/test-vasnprintf-posix2.sh
new file mode 100755
index 00000000..5ee5b475
--- /dev/null
+++ b/tests/gnu/test-vasnprintf-posix2.sh
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+# Test whether a french locale is installed.
+: ${LOCALE_FR=fr_FR}
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR != none; then
+  testlocale=$LOCALE_FR
+else
+  if test $LOCALE_FR_UTF8 != none; then
+    testlocale=$LOCALE_FR_UTF8
+  else
+    if test -f /usr/bin/localedef; then
+      echo "Skipping test: no french locale is installed"
+    else
+      echo "Skipping test: no french locale is supported"
+    fi
+    exit 77
+  fi
+fi
+
+LC_ALL=$testlocale \
+./test-vasnprintf-posix2${EXEEXT}
diff --git a/tests/gnu/test-vasnprintf.c b/tests/gnu/test-vasnprintf.c
new file mode 100755
index 00000000..e2831420
--- /dev/null
+++ b/tests/gnu/test-vasnprintf.c
@@ -0,0 +1,117 @@
+/* Test of vasnprintf() and asnprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "vasnprintf.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+static char *
+my_asnprintf (char *resultbuf, size_t *lengthp, const char *format, ...)
+{
+  va_list args;
+  char *ret;
+
+  va_start (args, format);
+  ret = vasnprintf (resultbuf, lengthp, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasnprintf ()
+{
+  char buf[8];
+  int size;
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length = size;
+      char *result = my_asnprintf (NULL, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      free (result);
+    }
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length;
+      char *result;
+
+      memcpy (buf, "DEADBEEF", 8);
+      length = size;
+      result = my_asnprintf (buf, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      if (size < 6)
+        ASSERT (result != buf);
+      ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+      if (result != buf)
+        free (result);
+    }
+}
+
+static void
+test_asnprintf ()
+{
+  char buf[8];
+  int size;
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length = size;
+      char *result = asnprintf (NULL, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      free (result);
+    }
+
+  for (size = 0; size <= 8; size++)
+    {
+      size_t length;
+      char *result;
+
+      memcpy (buf, "DEADBEEF", 8);
+      length = size;
+      result = asnprintf (buf, &length, "%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      ASSERT (length == 5);
+      if (size < 6)
+        ASSERT (result != buf);
+      ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0);
+      if (result != buf)
+        free (result);
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasnprintf ();
+  test_asnprintf ();
+  return 0;
+}
diff --git a/tests/gnu/test-vasprintf-posix.c b/tests/gnu/test-vasprintf-posix.c
new file mode 100755
index 00000000..ef19df8d
--- /dev/null
+++ b/tests/gnu/test-vasprintf-posix.c
@@ -0,0 +1,3652 @@
+/* Test of POSIX compatible vasprintf() and asprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include <float.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+#include "nan.h"
+
+/* The SGI MIPS floating-point format does not distinguish 0.0 and -0.0.  */
+static int
+have_minus_zero ()
+{
+  static double plus_zero = 0.0;
+  double minus_zero = - plus_zero;
+  return memcmp (&plus_zero, &minus_zero, sizeof (double)) != 0;
+}
+
+/* HP cc on HP-UX 10.20 has a bug with the constant expression -0.0.
+   So we use -zerod instead.  */
+double zerod = 0.0;
+
+/* On HP-UX 10.20, negating 0.0L does not yield -0.0L.
+   So we use minus_zerol instead.
+   IRIX cc can't put -0.0L into .data, but can compute at runtime.
+   Note that the expression -LDBL_MIN * LDBL_MIN does not work on other
+   platforms, such as when cross-compiling to PowerPC on MacOS X 10.5.  */
+#if defined __hpux || defined __sgi
+static long double
+compute_minus_zerol (void)
+{
+  return -LDBL_MIN * LDBL_MIN;
+}
+# define minus_zerol compute_minus_zerol ()
+#else
+long double minus_zerol = -0.0L;
+#endif
+
+/* Representation of an 80-bit 'long double' as an initializer for a sequence
+   of 'unsigned int' words.  */
+#ifdef WORDS_BIGENDIAN
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { ((unsigned int) (exponent) << 16) | ((unsigned int) (manthi) >> 16), \
+      ((unsigned int) (manthi) << 16) | (unsigned int) (mantlo) >> 16),    \
+      (unsigned int) (mantlo) << 16                                        \
+    }
+#else
+# define LDBL80_WORDS(exponent,manthi,mantlo) \
+    { mantlo, manthi, exponent }
+#endif
+
+static int
+strmatch (const char *pattern, const char *string)
+{
+  if (strlen (pattern) != strlen (string))
+    return 0;
+  for (; *pattern != '\0'; pattern++, string++)
+    if (*pattern != '*' && *string != *pattern)
+      return 0;
+  return 1;
+}
+
+/* Test whether string[start_index..end_index-1] is a valid textual
+   representation of NaN.  */
+static int
+strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
+{
+  if (start_index < end_index)
+    {
+      if (string[start_index] == '-')
+        start_index++;
+      if (start_index + 3 <= end_index
+          && memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
+        {
+          start_index += 3;
+          if (start_index == end_index
+              || (string[start_index] == '(' && string[end_index - 1] == ')'))
+            return 1;
+        }
+    }
+  return 0;
+}
+
+static void
+test_function (int (*my_asprintf) (char **, const char *, ...))
+{
+  int repeat;
+
+  /* Test return value convention.  */
+
+  for (repeat = 0; repeat <= 8; repeat++)
+    {
+      char *result;
+      int retval = asprintf (&result, "%d", 12345);
+      ASSERT (retval == 5);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      free (result);
+    }
+
+  /* Test support of size specifiers as in C99.  */
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%ju %d", (uintmax_t) 12345671, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345671 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%zu %d", (size_t) 12345672, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345672 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%tu %d", (ptrdiff_t) 12345673, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12345673 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", (long double) 1.5, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.5 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
+     output of floating-point numbers.  */
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", 3.1416015625, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%A %d", -3.1416015625, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%a %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding near the decimal point.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.0a %d", 1.5, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 0.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.0a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 1.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.1a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 2.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 3.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.3a %d", 1.51, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.3a %d", 1.49999, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.1a %d", 1.999, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Large precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.50a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#a %d", 1.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010a %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010a %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050a %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", 3.1416015625L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.922p+1 33") == 0
+            || strcmp (result, "0x3.244p+0 33") == 0
+            || strcmp (result, "0x6.488p-1 33") == 0
+            || strcmp (result, "0xc.91p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LA %d", -3.1416015625L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0X1.922P+1 33") == 0
+            || strcmp (result, "-0X3.244P+0 33") == 0
+            || strcmp (result, "-0X6.488P-1 33") == 0
+            || strcmp (result, "-0XC.91P-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0x0p+0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%La %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Rounding near the decimal point.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.0La %d", 1.5L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 0.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.0La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x2p+0 33") == 0
+            || strcmp (result, "0x3p-1 33") == 0
+            || strcmp (result, "0x6p-2 33") == 0
+            || strcmp (result, "0xcp-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 1.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.1La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.8p+0 33") == 0
+            || strcmp (result, "0x3.0p-1 33") == 0
+            || strcmp (result, "0x6.1p-2 33") == 0
+            || strcmp (result, "0xc.1p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 2.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.83p+0 33") == 0
+            || strcmp (result, "0x3.05p-1 33") == 0
+            || strcmp (result, "0x6.0ap-2 33") == 0
+            || strcmp (result, "0xc.14p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding with precision 3.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.3La %d", 1.51L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.829p+0 33") == 0
+            || strcmp (result, "0x3.052p-1 33") == 0
+            || strcmp (result, "0x6.0a4p-2 33") == 0
+            || strcmp (result, "0xc.148p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.3La %d", 1.49999L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.800p+0 33") == 0
+            || strcmp (result, "0x3.000p-1 33") == 0
+            || strcmp (result, "0x6.000p-2 33") == 0
+            || strcmp (result, "0xc.000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Rounding can turn a ...FFF into a ...000.
+       This shows a MacOS X 10.3.9 (Darwin 7.9) bug and a
+       glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.1La %d", 1.999L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.0p+1 33") == 0
+            || strcmp (result, "0x2.0p+0 33") == 0
+            || strcmp (result, "0x4.0p-1 33") == 0
+            || strcmp (result, "0x8.0p-2 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  0x1.cp+0 33") == 0
+            || strcmp (result, "  0x3.8p-1 33") == 0
+            || strcmp (result, "    0x7p-2 33") == 0
+            || strcmp (result, "    0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c000000000p+0 33") == 0
+            || strcmp (result, "0x3.8000000000p-1 33") == 0
+            || strcmp (result, "0x7.0000000000p-2 33") == 0
+            || strcmp (result, "0xe.0000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Large precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.50La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.c0000000000000000000000000000000000000000000000000p+0 33") == 0
+            || strcmp (result, "0x3.80000000000000000000000000000000000000000000000000p-1 33") == 0
+            || strcmp (result, "0x7.00000000000000000000000000000000000000000000000000p-2 33") == 0
+            || strcmp (result, "0xe.00000000000000000000000000000000000000000000000000p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0   33") == 0
+            || strcmp (result, "0x3.8p-1   33") == 0
+            || strcmp (result, "0x7p-2     33") == 0
+            || strcmp (result, "0xep-3     33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+0x1.cp+0 33") == 0
+            || strcmp (result, "+0x3.8p-1 33") == 0
+            || strcmp (result, "+0x7p-2 33") == 0
+            || strcmp (result, "+0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 0x1.cp+0 33") == 0
+            || strcmp (result, " 0x3.8p-1 33") == 0
+            || strcmp (result, " 0x7p-2 33") == 0
+            || strcmp (result, " 0xep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.cp+0 33") == 0
+            || strcmp (result, "0x3.8p-1 33") == 0
+            || strcmp (result, "0x7.p-2 33") == 0
+            || strcmp (result, "0xe.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#La %d", 1.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x1.p+0 33") == 0
+            || strcmp (result, "0x2.p-1 33") == 0
+            || strcmp (result, "0x4.p-2 33") == 0
+            || strcmp (result, "0x8.p-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010La %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0x001.cp+0 33") == 0
+            || strcmp (result, "0x003.8p-1 33") == 0
+            || strcmp (result, "0x00007p-2 33") == 0
+            || strcmp (result, "0x0000ep-3 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010La %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000inf 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strcmp (result, "       inf 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050La %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    /* "0000000nan 33" is not a valid result; see
+       <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %f format directive.  */
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "0.000000" },
+        { 1.234321234321234e-36, "0.000000" },
+        { 1.234321234321234e-35, "0.000000" },
+        { 1.234321234321234e-34, "0.000000" },
+        { 1.234321234321234e-33, "0.000000" },
+        { 1.234321234321234e-32, "0.000000" },
+        { 1.234321234321234e-31, "0.000000" },
+        { 1.234321234321234e-30, "0.000000" },
+        { 1.234321234321234e-29, "0.000000" },
+        { 1.234321234321234e-28, "0.000000" },
+        { 1.234321234321234e-27, "0.000000" },
+        { 1.234321234321234e-26, "0.000000" },
+        { 1.234321234321234e-25, "0.000000" },
+        { 1.234321234321234e-24, "0.000000" },
+        { 1.234321234321234e-23, "0.000000" },
+        { 1.234321234321234e-22, "0.000000" },
+        { 1.234321234321234e-21, "0.000000" },
+        { 1.234321234321234e-20, "0.000000" },
+        { 1.234321234321234e-19, "0.000000" },
+        { 1.234321234321234e-18, "0.000000" },
+        { 1.234321234321234e-17, "0.000000" },
+        { 1.234321234321234e-16, "0.000000" },
+        { 1.234321234321234e-15, "0.000000" },
+        { 1.234321234321234e-14, "0.000000" },
+        { 1.234321234321234e-13, "0.000000" },
+        { 1.234321234321234e-12, "0.000000" },
+        { 1.234321234321234e-11, "0.000000" },
+        { 1.234321234321234e-10, "0.000000" },
+        { 1.234321234321234e-9, "0.000000" },
+        { 1.234321234321234e-8, "0.000000" },
+        { 1.234321234321234e-7, "0.000000" },
+        { 1.234321234321234e-6, "0.000001" },
+        { 1.234321234321234e-5, "0.000012" },
+        { 1.234321234321234e-4, "0.000123" },
+        { 1.234321234321234e-3, "0.001234" },
+        { 1.234321234321234e-2, "0.012343" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.234321" },
+        { 1.234321234321234e1, "12.343212" },
+        { 1.234321234321234e2, "123.432123" },
+        { 1.234321234321234e3, "1234.321234" },
+        { 1.234321234321234e4, "12343.212343" },
+        { 1.234321234321234e5, "123432.123432" },
+        { 1.234321234321234e6, "1234321.234321" },
+        { 1.234321234321234e7, "12343212.343212" },
+        { 1.234321234321234e8, "123432123.432123" },
+        { 1.234321234321234e9, "1234321234.321234" },
+        { 1.234321234321234e10, "12343212343.2123**" },
+        { 1.234321234321234e11, "123432123432.123***" },
+        { 1.234321234321234e12, "1234321234321.23****" },
+        { 1.234321234321234e13, "12343212343212.3*****" },
+        { 1.234321234321234e14, "123432123432123.******" },
+        { 1.234321234321234e15, "1234321234321234.000000" },
+        { 1.234321234321234e16, "123432123432123**.000000" },
+        { 1.234321234321234e17, "123432123432123***.000000" },
+        { 1.234321234321234e18, "123432123432123****.000000" },
+        { 1.234321234321234e19, "123432123432123*****.000000" },
+        { 1.234321234321234e20, "123432123432123******.000000" },
+        { 1.234321234321234e21, "123432123432123*******.000000" },
+        { 1.234321234321234e22, "123432123432123********.000000" },
+        { 1.234321234321234e23, "123432123432123*********.000000" },
+        { 1.234321234321234e24, "123432123432123**********.000000" },
+        { 1.234321234321234e25, "123432123432123***********.000000" },
+        { 1.234321234321234e26, "123432123432123************.000000" },
+        { 1.234321234321234e27, "123432123432123*************.000000" },
+        { 1.234321234321234e28, "123432123432123**************.000000" },
+        { 1.234321234321234e29, "123432123432123***************.000000" },
+        { 1.234321234321234e30, "123432123432123****************.000000" },
+        { 1.234321234321234e31, "123432123432123*****************.000000" },
+        { 1.234321234321234e32, "123432123432123******************.000000" },
+        { 1.234321234321234e33, "123432123432123*******************.000000" },
+        { 1.234321234321234e34, "123432123432123********************.000000" },
+        { 1.234321234321234e35, "123432123432123*********************.000000" },
+        { 1.234321234321234e36, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%f", data[k].value);
+        ASSERT (result != NULL);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%f %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.f %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015f %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015f %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050f %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.f %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2f %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2f %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "0.000000" },
+        { 1.234321234321234e-36L, "0.000000" },
+        { 1.234321234321234e-35L, "0.000000" },
+        { 1.234321234321234e-34L, "0.000000" },
+        { 1.234321234321234e-33L, "0.000000" },
+        { 1.234321234321234e-32L, "0.000000" },
+        { 1.234321234321234e-31L, "0.000000" },
+        { 1.234321234321234e-30L, "0.000000" },
+        { 1.234321234321234e-29L, "0.000000" },
+        { 1.234321234321234e-28L, "0.000000" },
+        { 1.234321234321234e-27L, "0.000000" },
+        { 1.234321234321234e-26L, "0.000000" },
+        { 1.234321234321234e-25L, "0.000000" },
+        { 1.234321234321234e-24L, "0.000000" },
+        { 1.234321234321234e-23L, "0.000000" },
+        { 1.234321234321234e-22L, "0.000000" },
+        { 1.234321234321234e-21L, "0.000000" },
+        { 1.234321234321234e-20L, "0.000000" },
+        { 1.234321234321234e-19L, "0.000000" },
+        { 1.234321234321234e-18L, "0.000000" },
+        { 1.234321234321234e-17L, "0.000000" },
+        { 1.234321234321234e-16L, "0.000000" },
+        { 1.234321234321234e-15L, "0.000000" },
+        { 1.234321234321234e-14L, "0.000000" },
+        { 1.234321234321234e-13L, "0.000000" },
+        { 1.234321234321234e-12L, "0.000000" },
+        { 1.234321234321234e-11L, "0.000000" },
+        { 1.234321234321234e-10L, "0.000000" },
+        { 1.234321234321234e-9L, "0.000000" },
+        { 1.234321234321234e-8L, "0.000000" },
+        { 1.234321234321234e-7L, "0.000000" },
+        { 1.234321234321234e-6L, "0.000001" },
+        { 1.234321234321234e-5L, "0.000012" },
+        { 1.234321234321234e-4L, "0.000123" },
+        { 1.234321234321234e-3L, "0.001234" },
+        { 1.234321234321234e-2L, "0.012343" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.234321" },
+        { 1.234321234321234e1L, "12.343212" },
+        { 1.234321234321234e2L, "123.432123" },
+        { 1.234321234321234e3L, "1234.321234" },
+        { 1.234321234321234e4L, "12343.212343" },
+        { 1.234321234321234e5L, "123432.123432" },
+        { 1.234321234321234e6L, "1234321.234321" },
+        { 1.234321234321234e7L, "12343212.343212" },
+        { 1.234321234321234e8L, "123432123.432123" },
+        { 1.234321234321234e9L, "1234321234.321234" },
+        { 1.234321234321234e10L, "12343212343.2123**" },
+        { 1.234321234321234e11L, "123432123432.123***" },
+        { 1.234321234321234e12L, "1234321234321.23****" },
+        { 1.234321234321234e13L, "12343212343212.3*****" },
+        { 1.234321234321234e14L, "123432123432123.******" },
+        { 1.234321234321234e15L, "1234321234321234.000000" },
+        { 1.234321234321234e16L, "123432123432123**.000000" },
+        { 1.234321234321234e17L, "123432123432123***.000000" },
+        { 1.234321234321234e18L, "123432123432123****.000000" },
+        { 1.234321234321234e19L, "123432123432123*****.000000" },
+        { 1.234321234321234e20L, "123432123432123******.000000" },
+        { 1.234321234321234e21L, "123432123432123*******.000000" },
+        { 1.234321234321234e22L, "123432123432123********.000000" },
+        { 1.234321234321234e23L, "123432123432123*********.000000" },
+        { 1.234321234321234e24L, "123432123432123**********.000000" },
+        { 1.234321234321234e25L, "123432123432123***********.000000" },
+        { 1.234321234321234e26L, "123432123432123************.000000" },
+        { 1.234321234321234e27L, "123432123432123*************.000000" },
+        { 1.234321234321234e28L, "123432123432123**************.000000" },
+        { 1.234321234321234e29L, "123432123432123***************.000000" },
+        { 1.234321234321234e30L, "123432123432123****************.000000" },
+        { 1.234321234321234e31L, "123432123432123*****************.000000" },
+        { 1.234321234321234e32L, "123432123432123******************.000000" },
+        { 1.234321234321234e33L, "123432123432123*******************.000000" },
+        { 1.234321234321234e34L, "123432123432123********************.000000" },
+        { 1.234321234321234e35L, "123432123432123*********************.000000" },
+        { 1.234321234321234e36L, "123432123432123**********************.000000" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%Lf", data[k].value);
+        ASSERT (result != NULL);
+        ASSERT (strmatch (data[k].string, result));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lf %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "  1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000   33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.Lf %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015Lf %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050Lf %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.Lf %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2Lf %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2Lf %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %F format directive.  */
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%F %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015F %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015F %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.F %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2F %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2F %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.750000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234567.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.031250 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "INF 33") == 0
+            || strcmp (result, "INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-INF 33") == 0
+            || strcmp (result, "-INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%LF %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 1)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "00001234.000000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015LF %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -INF 33") == 0
+            || strcmp (result, "      -INFINITY 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.LF %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2LF %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.2LF %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000.00 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %e format directive.  */
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.234321e-37" },
+        { 1.234321234321234e-36, "1.234321e-36" },
+        { 1.234321234321234e-35, "1.234321e-35" },
+        { 1.234321234321234e-34, "1.234321e-34" },
+        { 1.234321234321234e-33, "1.234321e-33" },
+        { 1.234321234321234e-32, "1.234321e-32" },
+        { 1.234321234321234e-31, "1.234321e-31" },
+        { 1.234321234321234e-30, "1.234321e-30" },
+        { 1.234321234321234e-29, "1.234321e-29" },
+        { 1.234321234321234e-28, "1.234321e-28" },
+        { 1.234321234321234e-27, "1.234321e-27" },
+        { 1.234321234321234e-26, "1.234321e-26" },
+        { 1.234321234321234e-25, "1.234321e-25" },
+        { 1.234321234321234e-24, "1.234321e-24" },
+        { 1.234321234321234e-23, "1.234321e-23" },
+        { 1.234321234321234e-22, "1.234321e-22" },
+        { 1.234321234321234e-21, "1.234321e-21" },
+        { 1.234321234321234e-20, "1.234321e-20" },
+        { 1.234321234321234e-19, "1.234321e-19" },
+        { 1.234321234321234e-18, "1.234321e-18" },
+        { 1.234321234321234e-17, "1.234321e-17" },
+        { 1.234321234321234e-16, "1.234321e-16" },
+        { 1.234321234321234e-15, "1.234321e-15" },
+        { 1.234321234321234e-14, "1.234321e-14" },
+        { 1.234321234321234e-13, "1.234321e-13" },
+        { 1.234321234321234e-12, "1.234321e-12" },
+        { 1.234321234321234e-11, "1.234321e-11" },
+        { 1.234321234321234e-10, "1.234321e-10" },
+        { 1.234321234321234e-9, "1.234321e-09" },
+        { 1.234321234321234e-8, "1.234321e-08" },
+        { 1.234321234321234e-7, "1.234321e-07" },
+        { 1.234321234321234e-6, "1.234321e-06" },
+        { 1.234321234321234e-5, "1.234321e-05" },
+        { 1.234321234321234e-4, "1.234321e-04" },
+        { 1.234321234321234e-3, "1.234321e-03" },
+        { 1.234321234321234e-2, "1.234321e-02" },
+        { 1.234321234321234e-1, "1.234321e-01" },
+        { 1.234321234321234, "1.234321e+00" },
+        { 1.234321234321234e1, "1.234321e+01" },
+        { 1.234321234321234e2, "1.234321e+02" },
+        { 1.234321234321234e3, "1.234321e+03" },
+        { 1.234321234321234e4, "1.234321e+04" },
+        { 1.234321234321234e5, "1.234321e+05" },
+        { 1.234321234321234e6, "1.234321e+06" },
+        { 1.234321234321234e7, "1.234321e+07" },
+        { 1.234321234321234e8, "1.234321e+08" },
+        { 1.234321234321234e9, "1.234321e+09" },
+        { 1.234321234321234e10, "1.234321e+10" },
+        { 1.234321234321234e11, "1.234321e+11" },
+        { 1.234321234321234e12, "1.234321e+12" },
+        { 1.234321234321234e13, "1.234321e+13" },
+        { 1.234321234321234e14, "1.234321e+14" },
+        { 1.234321234321234e15, "1.234321e+15" },
+        { 1.234321234321234e16, "1.234321e+16" },
+        { 1.234321234321234e17, "1.234321e+17" },
+        { 1.234321234321234e18, "1.234321e+18" },
+        { 1.234321234321234e19, "1.234321e+19" },
+        { 1.234321234321234e20, "1.234321e+20" },
+        { 1.234321234321234e21, "1.234321e+21" },
+        { 1.234321234321234e22, "1.234321e+22" },
+        { 1.234321234321234e23, "1.234321e+23" },
+        { 1.234321234321234e24, "1.234321e+24" },
+        { 1.234321234321234e25, "1.234321e+25" },
+        { 1.234321234321234e26, "1.234321e+26" },
+        { 1.234321234321234e27, "1.234321e+27" },
+        { 1.234321234321234e28, "1.234321e+28" },
+        { 1.234321234321234e29, "1.234321e+29" },
+        { 1.234321234321234e30, "1.234321e+30" },
+        { 1.234321234321234e31, "1.234321e+31" },
+        { 1.234321234321234e32, "1.234321e+32" },
+        { 1.234321234321234e33, "1.234321e+33" },
+        { 1.234321234321234e34, "1.234321e+34" },
+        { 1.234321234321234e35, "1.234321e+35" },
+        { 1.234321234321234e36, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%e", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%e %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%15e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-15e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.e %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.e %d", 9.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015e %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015e %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050e %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.e %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4e %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4e %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.275000e+01 33") == 0
+            || strcmp (result, "1.275000e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.234567e+06 33") == 0
+            || strcmp (result, "1.234567e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.234321e-37" },
+        { 1.234321234321234e-36L, "1.234321e-36" },
+        { 1.234321234321234e-35L, "1.234321e-35" },
+        { 1.234321234321234e-34L, "1.234321e-34" },
+        { 1.234321234321234e-33L, "1.234321e-33" },
+        { 1.234321234321234e-32L, "1.234321e-32" },
+        { 1.234321234321234e-31L, "1.234321e-31" },
+        { 1.234321234321234e-30L, "1.234321e-30" },
+        { 1.234321234321234e-29L, "1.234321e-29" },
+        { 1.234321234321234e-28L, "1.234321e-28" },
+        { 1.234321234321234e-27L, "1.234321e-27" },
+        { 1.234321234321234e-26L, "1.234321e-26" },
+        { 1.234321234321234e-25L, "1.234321e-25" },
+        { 1.234321234321234e-24L, "1.234321e-24" },
+        { 1.234321234321234e-23L, "1.234321e-23" },
+        { 1.234321234321234e-22L, "1.234321e-22" },
+        { 1.234321234321234e-21L, "1.234321e-21" },
+        { 1.234321234321234e-20L, "1.234321e-20" },
+        { 1.234321234321234e-19L, "1.234321e-19" },
+        { 1.234321234321234e-18L, "1.234321e-18" },
+        { 1.234321234321234e-17L, "1.234321e-17" },
+        { 1.234321234321234e-16L, "1.234321e-16" },
+        { 1.234321234321234e-15L, "1.234321e-15" },
+        { 1.234321234321234e-14L, "1.234321e-14" },
+        { 1.234321234321234e-13L, "1.234321e-13" },
+        { 1.234321234321234e-12L, "1.234321e-12" },
+        { 1.234321234321234e-11L, "1.234321e-11" },
+        { 1.234321234321234e-10L, "1.234321e-10" },
+        { 1.234321234321234e-9L, "1.234321e-09" },
+        { 1.234321234321234e-8L, "1.234321e-08" },
+        { 1.234321234321234e-7L, "1.234321e-07" },
+        { 1.234321234321234e-6L, "1.234321e-06" },
+        { 1.234321234321234e-5L, "1.234321e-05" },
+        { 1.234321234321234e-4L, "1.234321e-04" },
+        { 1.234321234321234e-3L, "1.234321e-03" },
+        { 1.234321234321234e-2L, "1.234321e-02" },
+        { 1.234321234321234e-1L, "1.234321e-01" },
+        { 1.234321234321234L, "1.234321e+00" },
+        { 1.234321234321234e1L, "1.234321e+01" },
+        { 1.234321234321234e2L, "1.234321e+02" },
+        { 1.234321234321234e3L, "1.234321e+03" },
+        { 1.234321234321234e4L, "1.234321e+04" },
+        { 1.234321234321234e5L, "1.234321e+05" },
+        { 1.234321234321234e6L, "1.234321e+06" },
+        { 1.234321234321234e7L, "1.234321e+07" },
+        { 1.234321234321234e8L, "1.234321e+08" },
+        { 1.234321234321234e9L, "1.234321e+09" },
+        { 1.234321234321234e10L, "1.234321e+10" },
+        { 1.234321234321234e11L, "1.234321e+11" },
+        { 1.234321234321234e12L, "1.234321e+12" },
+        { 1.234321234321234e13L, "1.234321e+13" },
+        { 1.234321234321234e14L, "1.234321e+14" },
+        { 1.234321234321234e15L, "1.234321e+15" },
+        { 1.234321234321234e16L, "1.234321e+16" },
+        { 1.234321234321234e17L, "1.234321e+17" },
+        { 1.234321234321234e18L, "1.234321e+18" },
+        { 1.234321234321234e19L, "1.234321e+19" },
+        { 1.234321234321234e20L, "1.234321e+20" },
+        { 1.234321234321234e21L, "1.234321e+21" },
+        { 1.234321234321234e22L, "1.234321e+22" },
+        { 1.234321234321234e23L, "1.234321e+23" },
+        { 1.234321234321234e24L, "1.234321e+24" },
+        { 1.234321234321234e25L, "1.234321e+25" },
+        { 1.234321234321234e26L, "1.234321e+26" },
+        { 1.234321234321234e27L, "1.234321e+27" },
+        { 1.234321234321234e28L, "1.234321e+28" },
+        { 1.234321234321234e29L, "1.234321e+29" },
+        { 1.234321234321234e30L, "1.234321e+30" },
+        { 1.234321234321234e31L, "1.234321e+31" },
+        { 1.234321234321234e32L, "1.234321e+32" },
+        { 1.234321234321234e33L, "1.234321e+33" },
+        { 1.234321234321234e34L, "1.234321e+34" },
+        { 1.234321234321234e35L, "1.234321e+35" },
+        { 1.234321234321234e36L, "1.234321e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%Le", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-3.125000e-02 33") == 0
+            || strcmp (result, "-3.125000e-002 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0.000000e+00 33") == 0
+            || strcmp (result, "0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0.000000e+00 33") == 0
+              || strcmp (result, "-0.000000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Le %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "   1.750000e+00 33") == 0
+            || strcmp (result, "  1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-15Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00    33") == 0
+            || strcmp (result, "1.750000e+000   33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.750000e+00 33") == 0
+            || strcmp (result, "+1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.750000e+00 33") == 0
+            || strcmp (result, " 1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.750000e+00 33") == 0
+            || strcmp (result, "1.750000e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.Le %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2.e+00 33") == 0
+            || strcmp (result, "2.e+000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.Le %d", 9.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0001.234000e+03 33") == 0
+            || strcmp (result, "001.234000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015Le %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050Le %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.Le %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4Le %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "9.9995e+02 33") == 0
+            || strcmp (result, "9.9995e+002 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4Le %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.0000e+03 33") == 0
+            || strcmp (result, "1.0000e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %g format directive.  */
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", 12.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", 1234567.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37, "1.23432e-37" },
+        { 1.234321234321234e-36, "1.23432e-36" },
+        { 1.234321234321234e-35, "1.23432e-35" },
+        { 1.234321234321234e-34, "1.23432e-34" },
+        { 1.234321234321234e-33, "1.23432e-33" },
+        { 1.234321234321234e-32, "1.23432e-32" },
+        { 1.234321234321234e-31, "1.23432e-31" },
+        { 1.234321234321234e-30, "1.23432e-30" },
+        { 1.234321234321234e-29, "1.23432e-29" },
+        { 1.234321234321234e-28, "1.23432e-28" },
+        { 1.234321234321234e-27, "1.23432e-27" },
+        { 1.234321234321234e-26, "1.23432e-26" },
+        { 1.234321234321234e-25, "1.23432e-25" },
+        { 1.234321234321234e-24, "1.23432e-24" },
+        { 1.234321234321234e-23, "1.23432e-23" },
+        { 1.234321234321234e-22, "1.23432e-22" },
+        { 1.234321234321234e-21, "1.23432e-21" },
+        { 1.234321234321234e-20, "1.23432e-20" },
+        { 1.234321234321234e-19, "1.23432e-19" },
+        { 1.234321234321234e-18, "1.23432e-18" },
+        { 1.234321234321234e-17, "1.23432e-17" },
+        { 1.234321234321234e-16, "1.23432e-16" },
+        { 1.234321234321234e-15, "1.23432e-15" },
+        { 1.234321234321234e-14, "1.23432e-14" },
+        { 1.234321234321234e-13, "1.23432e-13" },
+        { 1.234321234321234e-12, "1.23432e-12" },
+        { 1.234321234321234e-11, "1.23432e-11" },
+        { 1.234321234321234e-10, "1.23432e-10" },
+        { 1.234321234321234e-9, "1.23432e-09" },
+        { 1.234321234321234e-8, "1.23432e-08" },
+        { 1.234321234321234e-7, "1.23432e-07" },
+        { 1.234321234321234e-6, "1.23432e-06" },
+        { 1.234321234321234e-5, "1.23432e-05" },
+        { 1.234321234321234e-4, "0.000123432" },
+        { 1.234321234321234e-3, "0.00123432" },
+        { 1.234321234321234e-2, "0.0123432" },
+        { 1.234321234321234e-1, "0.123432" },
+        { 1.234321234321234, "1.23432" },
+        { 1.234321234321234e1, "12.3432" },
+        { 1.234321234321234e2, "123.432" },
+        { 1.234321234321234e3, "1234.32" },
+        { 1.234321234321234e4, "12343.2" },
+        { 1.234321234321234e5, "123432" },
+        { 1.234321234321234e6, "1.23432e+06" },
+        { 1.234321234321234e7, "1.23432e+07" },
+        { 1.234321234321234e8, "1.23432e+08" },
+        { 1.234321234321234e9, "1.23432e+09" },
+        { 1.234321234321234e10, "1.23432e+10" },
+        { 1.234321234321234e11, "1.23432e+11" },
+        { 1.234321234321234e12, "1.23432e+12" },
+        { 1.234321234321234e13, "1.23432e+13" },
+        { 1.234321234321234e14, "1.23432e+14" },
+        { 1.234321234321234e15, "1.23432e+15" },
+        { 1.234321234321234e16, "1.23432e+16" },
+        { 1.234321234321234e17, "1.23432e+17" },
+        { 1.234321234321234e18, "1.23432e+18" },
+        { 1.234321234321234e19, "1.23432e+19" },
+        { 1.234321234321234e20, "1.23432e+20" },
+        { 1.234321234321234e21, "1.23432e+21" },
+        { 1.234321234321234e22, "1.23432e+22" },
+        { 1.234321234321234e23, "1.23432e+23" },
+        { 1.234321234321234e24, "1.23432e+24" },
+        { 1.234321234321234e25, "1.23432e+25" },
+        { 1.234321234321234e26, "1.23432e+26" },
+        { 1.234321234321234e27, "1.23432e+27" },
+        { 1.234321234321234e28, "1.23432e+28" },
+        { 1.234321234321234e29, "1.23432e+29" },
+        { 1.234321234321234e30, "1.23432e+30" },
+        { 1.234321234321234e31, "1.23432e+31" },
+        { 1.234321234321234e32, "1.23432e+32" },
+        { 1.234321234321234e33, "1.23432e+33" },
+        { 1.234321234321234e34, "1.23432e+34" },
+        { 1.234321234321234e35, "1.23432e+35" },
+        { 1.234321234321234e36, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%g", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", -0.03125, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", -zerod, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", 1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%g %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.g %d", 1.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.g %d", 9.75, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010g %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015g %d", -1.0 / 0.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050g %d", NaNd (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.g %d", 1234.0, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.5g %d", 999.951, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.5g %d", 999.996, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", 12.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "12.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* A larger positive number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", 1234567.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.23457e+06 33") == 0
+            || strcmp (result, "1.23457e+006 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Small and large positive numbers.  */
+    static struct { long double value; const char *string; } data[] =
+      {
+        { 1.234321234321234e-37L, "1.23432e-37" },
+        { 1.234321234321234e-36L, "1.23432e-36" },
+        { 1.234321234321234e-35L, "1.23432e-35" },
+        { 1.234321234321234e-34L, "1.23432e-34" },
+        { 1.234321234321234e-33L, "1.23432e-33" },
+        { 1.234321234321234e-32L, "1.23432e-32" },
+        { 1.234321234321234e-31L, "1.23432e-31" },
+        { 1.234321234321234e-30L, "1.23432e-30" },
+        { 1.234321234321234e-29L, "1.23432e-29" },
+        { 1.234321234321234e-28L, "1.23432e-28" },
+        { 1.234321234321234e-27L, "1.23432e-27" },
+        { 1.234321234321234e-26L, "1.23432e-26" },
+        { 1.234321234321234e-25L, "1.23432e-25" },
+        { 1.234321234321234e-24L, "1.23432e-24" },
+        { 1.234321234321234e-23L, "1.23432e-23" },
+        { 1.234321234321234e-22L, "1.23432e-22" },
+        { 1.234321234321234e-21L, "1.23432e-21" },
+        { 1.234321234321234e-20L, "1.23432e-20" },
+        { 1.234321234321234e-19L, "1.23432e-19" },
+        { 1.234321234321234e-18L, "1.23432e-18" },
+        { 1.234321234321234e-17L, "1.23432e-17" },
+        { 1.234321234321234e-16L, "1.23432e-16" },
+        { 1.234321234321234e-15L, "1.23432e-15" },
+        { 1.234321234321234e-14L, "1.23432e-14" },
+        { 1.234321234321234e-13L, "1.23432e-13" },
+        { 1.234321234321234e-12L, "1.23432e-12" },
+        { 1.234321234321234e-11L, "1.23432e-11" },
+        { 1.234321234321234e-10L, "1.23432e-10" },
+        { 1.234321234321234e-9L, "1.23432e-09" },
+        { 1.234321234321234e-8L, "1.23432e-08" },
+        { 1.234321234321234e-7L, "1.23432e-07" },
+        { 1.234321234321234e-6L, "1.23432e-06" },
+        { 1.234321234321234e-5L, "1.23432e-05" },
+        { 1.234321234321234e-4L, "0.000123432" },
+        { 1.234321234321234e-3L, "0.00123432" },
+        { 1.234321234321234e-2L, "0.0123432" },
+        { 1.234321234321234e-1L, "0.123432" },
+        { 1.234321234321234L, "1.23432" },
+        { 1.234321234321234e1L, "12.3432" },
+        { 1.234321234321234e2L, "123.432" },
+        { 1.234321234321234e3L, "1234.32" },
+        { 1.234321234321234e4L, "12343.2" },
+        { 1.234321234321234e5L, "123432" },
+        { 1.234321234321234e6L, "1.23432e+06" },
+        { 1.234321234321234e7L, "1.23432e+07" },
+        { 1.234321234321234e8L, "1.23432e+08" },
+        { 1.234321234321234e9L, "1.23432e+09" },
+        { 1.234321234321234e10L, "1.23432e+10" },
+        { 1.234321234321234e11L, "1.23432e+11" },
+        { 1.234321234321234e12L, "1.23432e+12" },
+        { 1.234321234321234e13L, "1.23432e+13" },
+        { 1.234321234321234e14L, "1.23432e+14" },
+        { 1.234321234321234e15L, "1.23432e+15" },
+        { 1.234321234321234e16L, "1.23432e+16" },
+        { 1.234321234321234e17L, "1.23432e+17" },
+        { 1.234321234321234e18L, "1.23432e+18" },
+        { 1.234321234321234e19L, "1.23432e+19" },
+        { 1.234321234321234e20L, "1.23432e+20" },
+        { 1.234321234321234e21L, "1.23432e+21" },
+        { 1.234321234321234e22L, "1.23432e+22" },
+        { 1.234321234321234e23L, "1.23432e+23" },
+        { 1.234321234321234e24L, "1.23432e+24" },
+        { 1.234321234321234e25L, "1.23432e+25" },
+        { 1.234321234321234e26L, "1.23432e+26" },
+        { 1.234321234321234e27L, "1.23432e+27" },
+        { 1.234321234321234e28L, "1.23432e+28" },
+        { 1.234321234321234e29L, "1.23432e+29" },
+        { 1.234321234321234e30L, "1.23432e+30" },
+        { 1.234321234321234e31L, "1.23432e+31" },
+        { 1.234321234321234e32L, "1.23432e+32" },
+        { 1.234321234321234e33L, "1.23432e+33" },
+        { 1.234321234321234e34L, "1.23432e+34" },
+        { 1.234321234321234e35L, "1.23432e+35" },
+        { 1.234321234321234e36L, "1.23432e+36" }
+      };
+    size_t k;
+    for (k = 0; k < SIZEOF (data); k++)
+      {
+        char *result;
+        int retval =
+          my_asprintf (&result, "%Lg", data[k].value);
+        const char *expected = data[k].string;
+        ASSERT (result != NULL);
+        ASSERT (strcmp (result, expected) == 0
+                /* Some implementations produce exponents with 3 digits.  */
+                || (expected[strlen (expected) - 4] == 'e'
+                    && strlen (result) == strlen (expected) + 1
+                    && memcmp (result, expected, strlen (expected) - 2) == 0
+                    && result[strlen (expected) - 2] == '0'
+                    && strcmp (result + strlen (expected) - 1,
+                               expected + strlen (expected) - 2)
+                       == 0));
+        ASSERT (retval == strlen (result));
+        free (result);
+      }
+  }
+
+  { /* A negative number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", -0.03125L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-0.03125 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative zero.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", minus_zerol, 33, 44, 55);
+    ASSERT (result != NULL);
+    if (have_minus_zero ())
+      ASSERT (strcmp (result, "-0 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Positive infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", 1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "inf 33") == 0
+            || strcmp (result, "infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Negative infinity.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "-inf 33") == 0
+            || strcmp (result, "-infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#if CHECK_PRINTF_SAFE && ((defined __ia64 && LDBL_MANT_DIG == 64) || (defined __x86_64__ || defined __amd64__) || (defined __i386 || defined __i386__ || defined _I386 || defined _M_IX86 || defined _X86_))
+  { /* Quiet NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0xC3333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  {
+    /* Signalling NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  /* The isnanl function should recognize Pseudo-NaNs, Pseudo-Infinities,
+     Pseudo-Zeroes, Unnormalized Numbers, and Pseudo-Denormals, as defined in
+       Intel IA-64 Architecture Software Developer's Manual, Volume 1:
+       Application Architecture.
+       Table 5-2 "Floating-Point Register Encodings"
+       Figure 5-6 "Memory to Floating-Point Register Data Translation"
+   */
+  { /* Pseudo-NaN.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x40000001, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Infinity.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0xFFFF, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Zero.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4004, 0x00000000, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Unnormalized number.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x4000, 0x63333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+  { /* Pseudo-Denormal.  */
+    static union { unsigned int word[4]; long double value; } x =
+      { LDBL80_WORDS (0x0000, 0x83333333, 0x00000000) };
+    char *result;
+    int retval =
+      my_asprintf (&result, "%Lg %d", x.value, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) >= 3 + 3
+            && strisnan (result, 0, strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+#endif
+
+  { /* Width.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "      1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_LEFT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%-10Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75       33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SHOWSIGN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%+Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "+1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_SPACE.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "% Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, " 1.75 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.75000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.Lg %d", 1.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "2. 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ALT.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.Lg %d", 9.75L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1.e+01 33") == 0
+            || strcmp (result, "1.e+001 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with finite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%010Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "0000001234 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with infinite number.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%015Lg %d", -1.0L / 0.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "           -inf 33") == 0
+            || strcmp (result, "      -infinity 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* FLAG_ZERO with NaN.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%050Lg %d", NaNl (), 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strlen (result) == 50 + 3
+            && strisnan (result, strspn (result, " "), strlen (result) - 3, 0)
+            && strcmp (result + strlen (result) - 3, " 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.Lg %d", 1234.0L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1e+03 33") == 0
+            || strcmp (result, "1e+003 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with no rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.5Lg %d", 999.951L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "999.95 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  { /* Precision with rounding.  */
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.5Lg %d", 999.996L, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "1000 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %n format directive.  */
+
+  {
+    int count = -1;
+    char *result;
+    int retval =
+      my_asprintf (&result, "%d %n", 123, &count, 33, 44, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "123 ") == 0);
+    ASSERT (retval == strlen (result));
+    ASSERT (count == 4);
+    free (result);
+  }
+
+  /* Test the support of the POSIX/XSI format strings with positions.  */
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%2$d %1$d", 33, 55);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "55 33") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the grouping flag.  */
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%'d %d", 1234567, 99);
+    ASSERT (result != NULL);
+    ASSERT (result[strlen (result) - 1] == '9');
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the left-adjust flag.  */
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "a%*sc", -3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "a%-*sc", 3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "a%-*sc", -3, "b");
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "ab  c") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of large precision.  */
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000d %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.*d %d", 4000, 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000d %d", -1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '-');
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[1 + i] == '0');
+    ASSERT (strcmp (result + 1 + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000u %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "1234567 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000o %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 7; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 7, "4553207 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[i] == '0');
+    ASSERT (strcmp (result + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char *result;
+    int retval =
+      my_asprintf (&result, "%#.4000x %d", 1234567, 99);
+    size_t i;
+    ASSERT (result != NULL);
+    ASSERT (result[0] == '0');
+    ASSERT (result[1] == 'x');
+    for (i = 0; i < 4000 - 6; i++)
+      ASSERT (result[2 + i] == '0');
+    ASSERT (strcmp (result + 2 + 4000 - 6, "12d687 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  {
+    char input[5000];
+    char *result;
+    int retval;
+    size_t i;
+
+    for (i = 0; i < sizeof (input) - 1; i++)
+      input[i] = 'a' + ((1000000 / (i + 1)) % 26);
+    input[i] = '\0';
+    retval = my_asprintf (&result, "%.4000s %d", input, 99);
+    ASSERT (result != NULL);
+    ASSERT (memcmp (result, input, 4000) == 0);
+    ASSERT (strcmp (result + 4000, " 99") == 0);
+    ASSERT (retval == strlen (result));
+    free (result);
+  }
+
+  /* Test the support of the %s format directive.  */
+
+  /* To verify that these tests succeed, it is necessary to run them under
+     a tool that checks against invalid memory accesses, such as ElectricFence
+     or "valgrind --tool=memcheck".  */
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        char *block;
+        char *result;
+        int retval;
+
+        block = (char *) malloc (i);
+        memcpy (block, "abcdefgh", i);
+        retval = my_asprintf (&result, "%.*s", (int) i, block);
+        ASSERT (result != NULL);
+        ASSERT (memcmp (result, block, i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (result);
+        free (block);
+      }
+  }
+#if HAVE_WCHAR_T
+  {
+    size_t i;
+
+    for (i = 1; i <= 8; i++)
+      {
+        wchar_t *block;
+        size_t j;
+        char *result;
+        int retval;
+
+        block = (wchar_t *) malloc (i * sizeof (wchar_t));
+        for (j = 0; j < i; j++)
+          block[j] = "abcdefgh"[j];
+        retval = my_asprintf (&result, "%.*ls", (int) i, block);
+        ASSERT (result != NULL);
+        ASSERT (memcmp (result, "abcdefgh", i) == 0);
+        ASSERT (result[i] == '\0');
+        ASSERT (retval == strlen (result));
+        free (result);
+        free (block);
+      }
+  }
+#endif
+}
+
+static int
+my_asprintf (char **result, const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = vasprintf (result, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasprintf ()
+{
+  test_function (my_asprintf);
+}
+
+static void
+test_asprintf ()
+{
+  test_function (asprintf);
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasprintf ();
+  test_asprintf ();
+  return 0;
+}
diff --git a/tests/gnu/test-vasprintf.c b/tests/gnu/test-vasprintf.c
new file mode 100755
index 00000000..e5dc3cd3
--- /dev/null
+++ b/tests/gnu/test-vasprintf.c
@@ -0,0 +1,83 @@
+/* Test of vasprintf() and asprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (asprintf, int, (char **, char const *, ...));
+SIGNATURE_CHECK (vasprintf, int, (char **, char const *, va_list));
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+static int
+my_asprintf (char **result, const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = vasprintf (result, format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_vasprintf ()
+{
+  int repeat;
+
+  for (repeat = 0; repeat <= 8; repeat++)
+    {
+      char *result;
+      int retval = my_asprintf (&result, "%d", 12345);
+      ASSERT (retval == 5);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      free (result);
+    }
+}
+
+static void
+test_asprintf ()
+{
+  int repeat;
+
+  for (repeat = 0; repeat <= 8; repeat++)
+    {
+      char *result;
+      int retval = asprintf (&result, "%d", 12345);
+      ASSERT (retval == 5);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      free (result);
+    }
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_vasprintf ();
+  test_asprintf ();
+  return 0;
+}
diff --git a/tests/gnu/test-vc-list-files-cvs.sh b/tests/gnu/test-vc-list-files-cvs.sh
new file mode 100755
index 00000000..110be03f
--- /dev/null
+++ b/tests/gnu/test-vc-list-files-cvs.sh
@@ -0,0 +1,62 @@
+#!/bin/sh
+# Unit tests for vc-list-files
+# Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+# This file is part of the GNUlib Library.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+tmpdir=vc-cvs-$$
+trap 'st=$?; cd '"`pwd`"' && rm -rf $tmpdir; exit $st' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+if ( diff --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { diff -u "$@"; }
+elif ( cmp --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { cmp -s "$@"; }
+else
+  compare() { cmp "$@"; }
+fi
+
+repo=`pwd`/$tmpdir/repo
+
+fail=0
+for i in with-cvsu without; do
+  # On the first iteration, test using cvsu, if it's in your path.
+  # On the second iteration, ensure that cvsu fails, so we'll
+  # exercise the awk-using code.
+  if test $i = without; then
+    printf '%s\n' '#!/bin/sh' 'exit 1' > cvsu
+    chmod a+x cvsu
+    PATH=`pwd`:$PATH
+    export PATH
+  fi
+  ok=0
+  mkdir $tmpdir && cd $tmpdir &&
+    # without cvs, skip the test
+    # The double use of 'exit' is needed for the reference to $? inside the trap.
+    { ( cvs -Q -d "$repo" init ) > /dev/null 2>&1 \
+      || { echo "Skipping test: cvs not found in PATH"; (exit 77); exit 77; }; } &&
+    mkdir w && cd w &&
+    mkdir d &&
+    touch d/a b c &&
+    cvs -Q -d "$repo" import -m imp m M M0 &&
+    cvs -Q -d "$repo" co m && cd m &&
+    printf '%s\n' b c d/a > expected &&
+    vc-list-files | sort > actual &&
+    compare expected actual &&
+    ok=1
+  test $ok = 0 && fail=1
+done
+
+(exit $fail); exit $fail
diff --git a/tests/gnu/test-vc-list-files-git.sh b/tests/gnu/test-vc-list-files-git.sh
new file mode 100755
index 00000000..7b7ff1a5
--- /dev/null
+++ b/tests/gnu/test-vc-list-files-git.sh
@@ -0,0 +1,48 @@
+#!/bin/sh
+# Unit tests for vc-list-files
+# Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+# This file is part of the GNUlib Library.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+if ( diff --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { diff -u "$@"; }
+elif ( cmp --version < /dev/null 2>&1 | grep GNU ) 2>&1 > /dev/null; then
+  compare() { cmp -s "$@"; }
+else
+  compare() { cmp "$@"; }
+fi
+
+tmpdir=vc-git-$$
+trap 'st=$?; cd '"`pwd`"' && rm -rf $tmpdir; exit $st' 0
+trap '(exit $?); exit $?' 1 2 13 15
+
+fail=1
+mkdir $tmpdir && cd $tmpdir &&
+  # without git, skip the test
+  # The double use of 'exit' is needed for the reference to $? inside the trap.
+  { ( git init -q ) > /dev/null 2>&1 \
+    || { echo "Skipping test: git not found in PATH"; (exit 77); exit 77; }; } &&
+  mkdir d &&
+  touch d/a b c &&
+  git config user.email "you@example.com"
+  git config user.name "Your Name"
+  git add . > /dev/null &&
+  git commit -q -a -m log &&
+  printf '%s\n' b c d/a > expected &&
+  vc-list-files > actual &&
+  compare expected actual &&
+  fail=0
+
+(exit $fail); exit $fail
diff --git a/tests/gnu/test-vfprintf-posix.c b/tests/gnu/test-vfprintf-posix.c
new file mode 100755
index 00000000..3c64afef
--- /dev/null
+++ b/tests/gnu/test-vfprintf-posix.c
@@ -0,0 +1,52 @@
+/* Test of POSIX compatible vfprintf() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (vfprintf, int, (FILE *, char const *, va_list));
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "macros.h"
+
+#include "test-fprintf-posix.h"
+
+static int
+my_fprintf (FILE *fp, const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = vfprintf (fp, format, args);
+  va_end (args);
+  return ret;
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_function (my_fprintf);
+  return 0;
+}
diff --git a/tests/gnu/test-vfprintf-posix.sh b/tests/gnu/test-vfprintf-posix.sh
new file mode 100755
index 00000000..74339ba0
--- /dev/null
+++ b/tests/gnu/test-vfprintf-posix.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles t-vfprintf-posix.tmp t-vfprintf-posix.out"
+./test-vfprintf-posix${EXEEXT} > t-vfprintf-posix.tmp || exit 1
+LC_ALL=C tr -d '\r' < t-vfprintf-posix.tmp > t-vfprintf-posix.out || exit 1
+
+: ${DIFF=diff}
+${DIFF} "${srcdir}/test-printf-posix.output" t-vfprintf-posix.out
+result=$?
+
+rm -fr $tmpfiles
+
+exit $result
diff --git a/tests/gnu/test-vprintf-posix.c b/tests/gnu/test-vprintf-posix.c
new file mode 100755
index 00000000..166df533
--- /dev/null
+++ b/tests/gnu/test-vprintf-posix.c
@@ -0,0 +1,52 @@
+/* Test of POSIX compatible vfprintf() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <stdio.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (vprintf, int, (char const *, va_list));
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "macros.h"
+
+#include "test-printf-posix.h"
+
+static int
+my_printf (const char *format, ...)
+{
+  va_list args;
+  int ret;
+
+  va_start (args, format);
+  ret = vprintf (format, args);
+  va_end (args);
+  return ret;
+}
+
+int
+main (int argc, char *argv[])
+{
+  test_function (my_printf);
+  return 0;
+}
diff --git a/tests/gnu/test-vprintf-posix.sh b/tests/gnu/test-vprintf-posix.sh
new file mode 100755
index 00000000..968a8b2a
--- /dev/null
+++ b/tests/gnu/test-vprintf-posix.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles t-vprintf-posix.tmp t-vprintf-posix.out"
+./test-vprintf-posix${EXEEXT} > t-vprintf-posix.tmp || exit 1
+LC_ALL=C tr -d '\r' < t-vprintf-posix.tmp > t-vprintf-posix.out || exit 1
+
+: ${DIFF=diff}
+${DIFF} "${srcdir}/test-printf-posix.output" t-vprintf-posix.out
+result=$?
+
+rm -fr $tmpfiles
+
+exit $result
diff --git a/tests/gnu/test-wchar.c b/tests/gnu/test-wchar.c
new file mode 100755
index 00000000..2a03d6b6
--- /dev/null
+++ b/tests/gnu/test-wchar.c
@@ -0,0 +1,37 @@
+/* Test of <wchar.h> substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "verify.h"
+
+/* Check that the types wchar_t and wint_t are defined.  */
+wchar_t a = 'c';
+wint_t b = 'x';
+
+/* Check that NULL can be passed through varargs as a pointer type,
+   per POSIX 2008.  */
+verify (sizeof NULL == sizeof (void *));
+
+int
+main (void)
+{
+  return 0;
+}
diff --git a/tests/gnu/test-wcrtomb.c b/tests/gnu/test-wcrtomb.c
new file mode 100755
index 00000000..0e844ef0
--- /dev/null
+++ b/tests/gnu/test-wcrtomb.c
@@ -0,0 +1,154 @@
+/* Test of conversion of wide character to multibyte character.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (wcrtomb, size_t, (char *, wchar_t, mbstate_t *));
+
+#include <locale.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "macros.h"
+
+/* Check the multibyte character s[0..n-1].  */
+static void
+check_character (const char *s, size_t n)
+{
+  wchar_t wc;
+  char buf[64];
+  int iret;
+  size_t ret;
+
+  wc = (wchar_t) 0xBADFACE;
+  iret = mbtowc (&wc, s, n);
+  ASSERT (iret == n);
+
+  ret = wcrtomb (buf, wc, NULL);
+  ASSERT (ret == n);
+  ASSERT (memcmp (buf, s, n) == 0);
+
+  /* Test special calling convention, passing a NULL pointer.  */
+  ret = wcrtomb (NULL, wc, NULL);
+  ASSERT (ret == 1);
+}
+
+int
+main (int argc, char *argv[])
+{
+  char buf[64];
+  size_t ret;
+
+  /* configure should already have checked that the locale is supported.  */
+  if (setlocale (LC_ALL, "") == NULL)
+    return 1;
+
+  /* Test NUL character.  */
+  {
+    buf[0] = 'x';
+    ret = wcrtomb (buf, 0, NULL);
+    ASSERT (ret == 1);
+    ASSERT (buf[0] == '\0');
+  }
+
+  /* Test single bytes.  */
+  {
+    int c;
+
+    for (c = 0; c < 0x100; c++)
+      switch (c)
+        {
+        case '\t': case '\v': case '\f':
+        case ' ': case '!': case '"': case '#': case '%':
+        case '&': case '\'': case '(': case ')': case '*':
+        case '+': case ',': case '-': case '.': case '/':
+        case '0': case '1': case '2': case '3': case '4':
+        case '5': case '6': case '7': case '8': case '9':
+        case ':': case ';': case '<': case '=': case '>':
+        case '?':
+        case 'A': case 'B': case 'C': case 'D': case 'E':
+        case 'F': case 'G': case 'H': case 'I': case 'J':
+        case 'K': case 'L': case 'M': case 'N': case 'O':
+        case 'P': case 'Q': case 'R': case 'S': case 'T':
+        case 'U': case 'V': case 'W': case 'X': case 'Y':
+        case 'Z':
+        case '[': case '\\': case ']': case '^': case '_':
+        case 'a': case 'b': case 'c': case 'd': case 'e':
+        case 'f': case 'g': case 'h': case 'i': case 'j':
+        case 'k': case 'l': case 'm': case 'n': case 'o':
+        case 'p': case 'q': case 'r': case 's': case 't':
+        case 'u': case 'v': case 'w': case 'x': case 'y':
+        case 'z': case '{': case '|': case '}': case '~':
+          /* c is in the ISO C "basic character set".  */
+          ret = wcrtomb (buf, btowc (c), NULL);
+          ASSERT (ret == 1);
+          ASSERT (buf[0] == (char) c);
+          break;
+        }
+  }
+
+  if (argc > 1)
+    switch (argv[1][0])
+      {
+      case '1':
+        /* Locale encoding is ISO-8859-1 or ISO-8859-15.  */
+        {
+          const char input[] = "B\374\337er"; /* "Büßer" */
+
+          check_character (input + 1, 1);
+          check_character (input + 2, 1);
+        }
+        return 0;
+
+      case '2':
+        /* Locale encoding is UTF-8.  */
+        {
+          const char input[] = "B\303\274\303\237er"; /* "Büßer" */
+
+          check_character (input + 1, 2);
+          check_character (input + 3, 2);
+        }
+        return 0;
+
+      case '3':
+        /* Locale encoding is EUC-JP.  */
+        {
+          const char input[] = "<\306\374\313\334\270\354>"; /* "<日本語>" */
+
+          check_character (input + 1, 2);
+          check_character (input + 3, 2);
+          check_character (input + 5, 2);
+        }
+        return 0;
+
+      case '4':
+        /* Locale encoding is GB18030.  */
+        {
+          const char input[] = "B\250\271\201\060\211\070er"; /* "Büßer" */
+
+          check_character (input + 1, 2);
+          check_character (input + 3, 4);
+        }
+        return 0;
+      }
+
+  return 1;
+}
diff --git a/tests/gnu/test-wcrtomb.sh b/tests/gnu/test-wcrtomb.sh
new file mode 100755
index 00000000..3eda8f33
--- /dev/null
+++ b/tests/gnu/test-wcrtomb.sh
@@ -0,0 +1,35 @@
+#!/bin/sh
+
+# Test in an ISO-8859-1 or ISO-8859-15 locale.
+: ${LOCALE_FR=fr_FR}
+if test $LOCALE_FR != none; then
+  LC_ALL=$LOCALE_FR \
+  ./test-wcrtomb${EXEEXT} 1 \
+  || exit 1
+fi
+
+# Test whether a specific UTF-8 locale is installed.
+: ${LOCALE_FR_UTF8=fr_FR.UTF-8}
+if test $LOCALE_FR_UTF8 != none; then
+  LC_ALL=$LOCALE_FR_UTF8 \
+  ./test-wcrtomb${EXEEXT} 2 \
+  || exit 1
+fi
+
+# Test whether a specific EUC-JP locale is installed.
+: ${LOCALE_JA=ja_JP}
+if test $LOCALE_JA != none; then
+  LC_ALL=$LOCALE_JA \
+  ./test-wcrtomb${EXEEXT} 3 \
+  || exit 1
+fi
+
+# Test whether a specific GB18030 locale is installed.
+: ${LOCALE_ZH_CN=zh_CN.GB18030}
+if test $LOCALE_ZH_CN != none; then
+  LC_ALL=$LOCALE_ZH_CN \
+  ./test-wcrtomb${EXEEXT} 4 \
+  || exit 1
+fi
+
+exit 0
diff --git a/tests/gnu/test-wctype.c b/tests/gnu/test-wctype.c
new file mode 100755
index 00000000..49d7cfa0
--- /dev/null
+++ b/tests/gnu/test-wctype.c
@@ -0,0 +1,74 @@
+/* Test of <wctype.h> substitute.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <wctype.h>
+
+#include "macros.h"
+
+/* Check that the type wint_t is defined.  */
+wint_t a = 'x';
+/* Check that WEOF is defined.  */
+wint_t e = WEOF;
+
+int
+main (void)
+{
+  /* Check that the isw* functions exist as functions or as macros.  */
+  (void) iswalnum (0);
+  (void) iswalpha (0);
+#if 0 /* not portable: missing on mingw */
+  (void) iswblank (0);
+#endif
+  (void) iswcntrl (0);
+  (void) iswdigit (0);
+  (void) iswgraph (0);
+  (void) iswlower (0);
+  (void) iswprint (0);
+  (void) iswpunct (0);
+  (void) iswspace (0);
+  (void) iswupper (0);
+  (void) iswxdigit (0);
+
+  /* Check that the isw* functions map WEOF to 0.  */
+  ASSERT (!iswalnum (e));
+  ASSERT (!iswalpha (e));
+#if 0 /* not portable: missing on mingw */
+  ASSERT (!iswblank (e));
+#endif
+  ASSERT (!iswcntrl (e));
+  ASSERT (!iswdigit (e));
+  ASSERT (!iswgraph (e));
+  ASSERT (!iswlower (e));
+  ASSERT (!iswprint (e));
+  ASSERT (!iswpunct (e));
+  ASSERT (!iswspace (e));
+  ASSERT (!iswupper (e));
+  ASSERT (!iswxdigit (e));
+
+  /* Check that the tow* functions exist as functions or as macros.  */
+  (void) towlower (0);
+  (void) towupper (0);
+
+  /* Check that the tow* functions map WEOF to WEOF.  */
+  ASSERT (towlower (e) == e);
+  ASSERT (towupper (e) == e);
+
+  return 0;
+}
diff --git a/tests/gnu/test-wcwidth.c b/tests/gnu/test-wcwidth.c
new file mode 100755
index 00000000..f6f97924
--- /dev/null
+++ b/tests/gnu/test-wcwidth.c
@@ -0,0 +1,81 @@
+/* Test of wcwidth() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <wchar.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (wcwidth, int, (wchar_t));
+
+#include <locale.h>
+#include <string.h>
+
+#include "localcharset.h"
+#include "macros.h"
+
+int
+main ()
+{
+  wchar_t wc;
+
+  /* Test width of ASCII characters.  */
+  for (wc = 0x20; wc < 0x7F; wc++)
+    ASSERT (wcwidth (wc) == 1);
+
+  /* Switch to an UTF-8 locale.  */
+  if (setlocale (LC_ALL, "fr_FR.UTF-8") != NULL
+      /* Check whether it's really an UTF-8 locale.
+         On OpenBSD 4.0, the setlocale call succeeds only for the LC_CTYPE
+         category and therefore returns "C/fr_FR.UTF-8/C/C/C/C", but the
+         LC_CTYPE category is effectively set to an ASCII LC_CTYPE category;
+         in particular, locale_charset() returns "ASCII".  */
+      && strcmp (locale_charset (), "UTF-8") == 0)
+    {
+      /* Test width of ASCII characters.  */
+      for (wc = 0x20; wc < 0x7F; wc++)
+        ASSERT (wcwidth (wc) == 1);
+
+      /* Test width of some non-spacing characters.  */
+      ASSERT (wcwidth (0x0301) == 0);
+      ASSERT (wcwidth (0x05B0) == 0);
+
+      /* Test width of some format control characters.  */
+      ASSERT (wcwidth (0x200E) <= 0);
+      ASSERT (wcwidth (0x2060) <= 0);
+#if 0  /* wchar_t may be only 16 bits.  */
+      ASSERT (wcwidth (0xE0001) <= 0);
+      ASSERT (wcwidth (0xE0044) <= 0);
+#endif
+
+      /* Test width of some zero width characters.  */
+      ASSERT (wcwidth (0x200B) == 0);
+      ASSERT (wcwidth (0xFEFF) <= 0);
+
+      /* Test width of some CJK characters.  */
+      ASSERT (wcwidth (0x3000) == 2);
+      ASSERT (wcwidth (0xB250) == 2);
+      ASSERT (wcwidth (0xFF1A) == 2);
+#if 0  /* wchar_t may be only 16 bits.  */
+      ASSERT (wcwidth (0x20369) == 2);
+      ASSERT (wcwidth (0x2F876) == 2);
+#endif
+    }
+
+  return 0;
+}
diff --git a/tests/gnu/test-xalloc-die.c b/tests/gnu/test-xalloc-die.c
new file mode 100755
index 00000000..67edd92d
--- /dev/null
+++ b/tests/gnu/test-xalloc-die.c
@@ -0,0 +1,30 @@
+/* Test of xalloc_die() function.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Simon Josefsson <simon@josefsson.org>, 2009.  */
+
+#include <config.h>
+
+#include "xalloc.h"
+#include "progname.h"
+
+int
+main (int argc _GL_UNUSED, char **argv)
+{
+  set_program_name (argv[0]);
+  xalloc_die ();
+  return 0;
+}
diff --git a/tests/gnu/test-xalloc-die.sh b/tests/gnu/test-xalloc-die.sh
new file mode 100755
index 00000000..80d6208d
--- /dev/null
+++ b/tests/gnu/test-xalloc-die.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+# Test suite for xalloc_die.
+# Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+# This file is part of the GNUlib Library.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. "${srcdir=.}/init.sh"; path_prepend_ .
+
+test-xalloc-die${EXEEXT} 2> err > out
+case $? in
+  1) ;;
+  *) Exit 1;;
+esac
+
+tr -d '\015' < err \
+  | sed 's,.*test-xalloc-die[.ex]*:,test-xalloc-die:,' > err2 || Exit 1
+
+compare - err2 <<\EOF || Exit 1
+test-xalloc-die: memory exhausted
+EOF
+
+test -s out && Exit 1
+
+Exit $fail
diff --git a/tests/gnu/test-xfprintf-posix.c b/tests/gnu/test-xfprintf-posix.c
new file mode 100755
index 00000000..b8fc6ed2
--- /dev/null
+++ b/tests/gnu/test-xfprintf-posix.c
@@ -0,0 +1,40 @@
+/* Test of error-checking xfprintf() function with POSIX compatible formatting.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "xprintf.h"
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "progname.h"
+#include "macros.h"
+
+#include "test-fprintf-posix.h"
+
+int
+main (int argc _GL_UNUSED, char *argv[])
+{
+  set_program_name (argv[0]);
+
+  test_function (xfprintf);
+  return 0;
+}
diff --git a/tests/gnu/test-xmemdup0.c b/tests/gnu/test-xmemdup0.c
new file mode 100755
index 00000000..eb93336f
--- /dev/null
+++ b/tests/gnu/test-xmemdup0.c
@@ -0,0 +1,82 @@
+/* Test of xmemdup0() function.
+   Copyright (C) 2008-2010 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Eric Blake <ebb9@byu.net>, 2008.  */
+
+#include <config.h>
+
+#include "xmemdup0.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "progname.h"
+#include "macros.h"
+
+int
+main (int argc, char **argv)
+{
+  char buffer[10] = { 'a', 'b', 'c', 'd', '\0',
+                      'f', 'g', 'h', 'i', 'j'   };
+
+  set_program_name (argv[0]);
+
+  /* Empty string.  */
+  {
+    char *result = xmemdup0 (NULL, 0);
+    ASSERT (result);
+    ASSERT (!*result);
+    free (result);
+  }
+  {
+    char *result = xmemdup0 ("", 0);
+    ASSERT (result);
+    ASSERT (!*result);
+    free (result);
+  }
+
+  /* Various buffer lengths.  */
+  {
+    char *result = xmemdup0 (buffer, 4);
+    ASSERT (result);
+    ASSERT (strcmp (result, buffer) == 0);
+    free (result);
+  }
+  {
+    char *result = xmemdup0 (buffer, 5);
+    ASSERT (result);
+    ASSERT (strcmp (result, buffer) == 0);
+    ASSERT (result[5] == '\0');
+    free (result);
+  }
+  {
+    char *result = xmemdup0 (buffer, 9);
+    ASSERT (result);
+    ASSERT (memcmp (result, buffer, 9) == 0);
+    ASSERT (result[9] == '\0');
+    free (result);
+  }
+  {
+    char *result = xmemdup0 (buffer, 10);
+    ASSERT (result);
+    ASSERT (memcmp (result, buffer, 10) == 0);
+    ASSERT (result[10] == '\0');
+    free (result);
+  }
+
+  return 0;
+}
diff --git a/tests/gnu/test-xprintf-posix.c b/tests/gnu/test-xprintf-posix.c
new file mode 100755
index 00000000..c907356f
--- /dev/null
+++ b/tests/gnu/test-xprintf-posix.c
@@ -0,0 +1,39 @@
+/* Test of error-checking xprintf() function with POSIX compatible formatting.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "xprintf.h"
+
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "progname.h"
+#include "macros.h"
+
+#include "test-printf-posix.h"
+
+int
+main (int argc _GL_UNUSED, char *argv[])
+{
+  set_program_name (argv[0]);
+
+  test_function (xprintf);
+  return 0;
+}
diff --git a/tests/gnu/test-xprintf-posix.sh b/tests/gnu/test-xprintf-posix.sh
new file mode 100755
index 00000000..0087a9d4
--- /dev/null
+++ b/tests/gnu/test-xprintf-posix.sh
@@ -0,0 +1,24 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles t-xprintf-posix.tmp t-xprintf-posix.out"
+./test-xprintf-posix${EXEEXT} > t-xprintf-posix.tmp || exit 1
+LC_ALL=C tr -d '\r' < t-xprintf-posix.tmp > t-xprintf-posix.out || exit 1
+
+: ${DIFF=diff}
+${DIFF} "${srcdir}/test-printf-posix.output" t-xprintf-posix.out
+test $? = 0 || { rm -fr $tmpfiles; exit 1; }
+
+tmpfiles="$tmpfiles t-xfprintf-posix.tmp t-xfprintf-posix.out"
+./test-xfprintf-posix${EXEEXT} > t-xfprintf-posix.tmp || exit 1
+LC_ALL=C tr -d '\r' < t-xfprintf-posix.tmp > t-xfprintf-posix.out || exit 1
+
+: ${DIFF=diff}
+${DIFF} "${srcdir}/test-printf-posix.output" t-xfprintf-posix.out
+test $? = 0 || { rm -fr $tmpfiles; exit 1; }
+
+rm -fr $tmpfiles
+
+exit 0
diff --git a/tests/gnu/test-xvasprintf.c b/tests/gnu/test-xvasprintf.c
new file mode 100755
index 00000000..df6c2009
--- /dev/null
+++ b/tests/gnu/test-xvasprintf.c
@@ -0,0 +1,129 @@
+/* Test of xvasprintf() and xasprintf() functions.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "xvasprintf.h"
+
+#include <stdarg.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "progname.h"
+#include "macros.h"
+
+static char *
+my_xasprintf (const char *format, ...)
+{
+  va_list args;
+  char *ret;
+
+  va_start (args, format);
+  ret = xvasprintf (format, args);
+  va_end (args);
+  return ret;
+}
+
+static void
+test_xvasprintf (void)
+{
+  int repeat;
+  char *result;
+
+  for (repeat = 0; repeat <= 8; repeat++)
+    {
+      result = my_xasprintf ("%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      free (result);
+    }
+
+  {
+    /* Silence gcc warning about zero-length format string.  */
+    char *empty = "";
+    result = my_xasprintf (empty);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "") == 0);
+    free (result);
+  }
+
+  result = my_xasprintf ("%s", "foo");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foo") == 0);
+  free (result);
+
+  result = my_xasprintf ("%s%s", "foo", "bar");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foobar") == 0);
+  free (result);
+
+  result = my_xasprintf ("%s%sbaz", "foo", "bar");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foobarbaz") == 0);
+  free (result);
+}
+
+static void
+test_xasprintf ()
+{
+  int repeat;
+  char *result;
+
+  for (repeat = 0; repeat <= 8; repeat++)
+    {
+      result = xasprintf ("%d", 12345);
+      ASSERT (result != NULL);
+      ASSERT (strcmp (result, "12345") == 0);
+      free (result);
+    }
+
+  {
+    /* Silence gcc warning about zero-length format string.  */
+    char *empty = "";
+    result = xasprintf (empty);
+    ASSERT (result != NULL);
+    ASSERT (strcmp (result, "") == 0);
+    free (result);
+  }
+
+  result = xasprintf ("%s", "foo");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foo") == 0);
+  free (result);
+
+  result = xasprintf ("%s%s", "foo", "bar");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foobar") == 0);
+  free (result);
+
+  result = my_xasprintf ("%s%sbaz", "foo", "bar");
+  ASSERT (result != NULL);
+  ASSERT (strcmp (result, "foobarbaz") == 0);
+  free (result);
+}
+
+int
+main (int argc _GL_UNUSED, char *argv[])
+{
+  set_program_name (argv[0]);
+
+  test_xvasprintf ();
+  test_xasprintf ();
+
+  return 0;
+}
diff --git a/tests/gnu/uniwidth/test-uc_width.c b/tests/gnu/uniwidth/test-uc_width.c
new file mode 100755
index 00000000..7cfab614
--- /dev/null
+++ b/tests/gnu/uniwidth/test-uc_width.c
@@ -0,0 +1,56 @@
+/* Test of uc_width() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include "uniwidth.h"
+
+#include "macros.h"
+
+int
+main ()
+{
+  ucs4_t uc;
+
+  /* Test width of ASCII characters.  */
+  for (uc = 0x0020; uc < 0x007F; uc++)
+    ASSERT (uc_width (uc, "ISO-8859-2") == 1);
+
+  /* Test width of some non-spacing characters.  */
+  ASSERT (uc_width (0x0301, "UTF-8") == 0);
+  ASSERT (uc_width (0x05B0, "UTF-8") == 0);
+
+  /* Test width of some format control characters.  */
+  ASSERT (uc_width (0x200E, "UTF-8") == 0);
+  ASSERT (uc_width (0x2060, "UTF-8") == 0);
+  ASSERT (uc_width (0xE0001, "UTF-8") == 0);
+  ASSERT (uc_width (0xE0044, "UTF-8") == 0);
+
+  /* Test width of some zero width characters.  */
+  ASSERT (uc_width (0x200B, "UTF-8") == 0);
+  ASSERT (uc_width (0xFEFF, "UTF-8") == 0);
+
+  /* Test width of some CJK characters.  */
+  ASSERT (uc_width (0x3000, "UTF-8") == 2);
+  ASSERT (uc_width (0xB250, "UTF-8") == 2);
+  ASSERT (uc_width (0xFF1A, "UTF-8") == 2);
+  ASSERT (uc_width (0x20369, "UTF-8") == 2);
+  ASSERT (uc_width (0x2F876, "UTF-8") == 2);
+
+  return 0;
+}
diff --git a/tests/gnu/uniwidth/test-uc_width2.c b/tests/gnu/uniwidth/test-uc_width2.c
new file mode 100755
index 00000000..3126d4c3
--- /dev/null
+++ b/tests/gnu/uniwidth/test-uc_width2.c
@@ -0,0 +1,86 @@
+/* Test of uc_width() function.
+   Copyright (C) 2007-2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2008.  */
+
+#include <config.h>
+
+#include "uniwidth.h"
+
+#include <stdio.h>
+
+#include "macros.h"
+
+/* One of 0, '0', '1', 'A', '2'.  */
+static char current_width;
+/* The interval for which the current_width holds.  */
+static ucs4_t current_start;
+static ucs4_t current_end;
+
+static void
+finish_interval (void)
+{
+  if (current_width != 0)
+    {
+      if (current_start == current_end)
+        printf ("%04X\t\t%c\n", (unsigned) current_start, current_width);
+      else
+        printf ("%04X..%04X\t%c\n", (unsigned) current_start,
+                (unsigned) current_end, current_width);
+      current_width = 0;
+    }
+}
+
+static void
+add_to_interval (ucs4_t uc, char width)
+{
+  if (current_width == width && uc == current_end + 1)
+    current_end = uc;
+  else
+    {
+      finish_interval ();
+      current_width = width;
+      current_start = current_end = uc;
+    }
+}
+
+int
+main ()
+{
+  ucs4_t uc;
+
+  for (uc = 0; uc < 0x110000; uc++)
+    {
+      int w1 = uc_width (uc, "UTF-8");
+      int w2 = uc_width (uc, "GBK");
+      char width =
+        (w1 == 0 && w2 == 0 ? '0' :
+         w1 == 1 && w2 == 1 ? '1' :
+         w1 == 1 && w2 == 2 ? 'A' :
+         w1 == 2 && w2 == 2 ? '2' :
+         0);
+      if (width == 0)
+        {
+          /* uc must be a control character.  */
+          ASSERT (w1 < 0 && w2 < 0);
+        }
+      else
+        add_to_interval (uc, width);
+    }
+  finish_interval ();
+
+  return 0;
+}
diff --git a/tests/gnu/uniwidth/test-uc_width2.sh b/tests/gnu/uniwidth/test-uc_width2.sh
new file mode 100755
index 00000000..484288c9
--- /dev/null
+++ b/tests/gnu/uniwidth/test-uc_width2.sh
@@ -0,0 +1,382 @@
+#!/bin/sh
+
+tmpfiles=""
+trap 'rm -fr $tmpfiles' 1 2 3 15
+
+tmpfiles="$tmpfiles uc_width.out"
+./test-uc_width2${EXEEXT} | LC_ALL=C tr -d '\r' > uc_width.out
+
+tmpfiles="$tmpfiles uc_width.ok"
+cat > uc_width.ok <<\EOF
+0000		0
+0020..007E	1
+00A0		1
+00A1..00AC	A
+00AD		0
+00AE..02FF	A
+0300..036F	0
+0370..0482	A
+0483..0489	0
+048A..0590	A
+0591..05BD	0
+05BE		A
+05BF		0
+05C0		A
+05C1..05C2	0
+05C3		A
+05C4..05C5	0
+05C6		A
+05C7		0
+05C8..05FF	A
+0600..0603	0
+0604..060F	A
+0610..061A	0
+061B..064A	A
+064B..065E	0
+065F..066F	A
+0670		0
+0671..06D5	A
+06D6..06E4	0
+06E5..06E6	A
+06E7..06E8	0
+06E9		A
+06EA..06ED	0
+06EE..070E	A
+070F		0
+0710		A
+0711		0
+0712..072F	A
+0730..074A	0
+074B..07A5	A
+07A6..07B0	0
+07B1..07EA	A
+07EB..07F3	0
+07F4..0900	A
+0901..0902	0
+0903..093B	A
+093C		0
+093D..0940	A
+0941..0948	0
+0949..094C	A
+094D		0
+094E..0950	A
+0951..0954	0
+0955..0961	A
+0962..0963	0
+0964..0980	A
+0981		0
+0982..09BB	A
+09BC		0
+09BD..09C0	A
+09C1..09C4	0
+09C5..09CC	A
+09CD		0
+09CE..09E1	A
+09E2..09E3	0
+09E4..0A00	A
+0A01..0A02	0
+0A03..0A3B	A
+0A3C		0
+0A3D..0A40	A
+0A41..0A42	0
+0A43..0A46	A
+0A47..0A48	0
+0A49..0A4A	A
+0A4B..0A4D	0
+0A4E..0A50	A
+0A51		0
+0A52..0A6F	A
+0A70..0A71	0
+0A72..0A74	A
+0A75		0
+0A76..0A80	A
+0A81..0A82	0
+0A83..0ABB	A
+0ABC		0
+0ABD..0AC0	A
+0AC1..0AC5	0
+0AC6		A
+0AC7..0AC8	0
+0AC9..0ACC	A
+0ACD		0
+0ACE..0AE1	A
+0AE2..0AE3	0
+0AE4..0B00	A
+0B01		0
+0B02..0B3B	A
+0B3C		0
+0B3D..0B3E	A
+0B3F		0
+0B40		A
+0B41..0B44	0
+0B45..0B4C	A
+0B4D		0
+0B4E..0B55	A
+0B56		0
+0B57..0B61	A
+0B62..0B63	0
+0B64..0B81	A
+0B82		0
+0B83..0BBF	A
+0BC0		0
+0BC1..0BCC	A
+0BCD		0
+0BCE..0C3D	A
+0C3E..0C40	0
+0C41..0C45	A
+0C46..0C48	0
+0C49		A
+0C4A..0C4D	0
+0C4E..0C54	A
+0C55..0C56	0
+0C57..0C61	A
+0C62..0C63	0
+0C64..0CBB	A
+0CBC		0
+0CBD..0CCB	A
+0CCC..0CCD	0
+0CCE..0CE1	A
+0CE2..0CE3	0
+0CE4..0D40	A
+0D41..0D44	0
+0D45..0D4C	A
+0D4D		0
+0D4E..0D61	A
+0D62..0D63	0
+0D64..0DC9	A
+0DCA		0
+0DCB..0DD1	A
+0DD2..0DD4	0
+0DD5		A
+0DD6		0
+0DD7..0E30	A
+0E31		0
+0E32..0E33	A
+0E34..0E3A	0
+0E3B..0E46	A
+0E47..0E4E	0
+0E4F..0EB0	A
+0EB1		0
+0EB2..0EB3	A
+0EB4..0EB9	0
+0EBA		A
+0EBB..0EBC	0
+0EBD..0EC7	A
+0EC8..0ECD	0
+0ECE..0F17	A
+0F18..0F19	0
+0F1A..0F34	A
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+0F38		A
+0F39		0
+0F3A..0F70	A
+0F71..0F7E	0
+0F7F		A
+0F80..0F84	0
+0F85		A
+0F86..0F87	0
+0F88..0F8F	A
+0F90..0F97	0
+0F98		A
+0F99..0FBC	0
+0FBD..0FC5	A
+0FC6		0
+0FC7..102C	A
+102D..1030	0
+1031		A
+1032..1037	0
+1038		A
+1039..103A	0
+103B..103C	A
+103D..103E	0
+103F..1057	A
+1058..1059	0
+105A..105D	A
+105E..1060	0
+1061..1070	A
+1071..1074	0
+1075..1081	A
+1082		0
+1083..1084	A
+1085..1086	0
+1087..108C	A
+108D		0
+108E..10FF	A
+1100..115F	2
+1160..135E	A
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+1712..1714	0
+1715..1731	A
+1732..1734	0
+1735..1751	A
+1752..1753	0
+1754..1771	A
+1772..1773	0
+1774..17B3	A
+17B4..17B5	0
+17B6		A
+17B7..17BD	0
+17BE..17C5	A
+17C6		0
+17C7..17C8	A
+17C9..17D3	0
+17D4..17DC	A
+17DD		0
+17DE..180A	A
+180B..180D	0
+180E..18A8	A
+18A9		0
+18AA..191F	A
+1920..1922	0
+1923..1926	A
+1927..1928	0
+1929..1931	A
+1932		0
+1933..1938	A
+1939..193B	0
+193C..1A16	A
+1A17..1A18	0
+1A19..1AFF	A
+1B00..1B03	0
+1B04..1B33	A
+1B34		0
+1B35		A
+1B36..1B3A	0
+1B3B		A
+1B3C		0
+1B3D..1B41	A
+1B42		0
+1B43..1B6A	A
+1B6B..1B73	0
+1B74..1B7F	A
+1B80..1B81	0
+1B82..1BA1	A
+1BA2..1BA5	0
+1BA6..1BA7	A
+1BA8..1BA9	0
+1BAA..1C2B	A
+1C2C..1C33	0
+1C34..1C35	A
+1C36..1C37	0
+1C38..1DBF	A
+1DC0..1DE6	0
+1DE7..1DFD	A
+1DFE..1DFF	0
+1E00..200A	A
+200B..200F	0
+2010..2029	A
+202A..202E	0
+202F..205F	A
+2060..2064	0
+2065..2069	A
+206A..206F	0
+2070..20A8	A
+20A9		1
+20AA..20CF	A
+20D0..20F0	0
+20F1..2328	A
+2329..232A	2
+232B..2DDF	A
+2DE0..2DFF	0
+2E00..2E7F	A
+2E80..3029	2
+302A..302F	0
+3030..303E	2
+303F		A
+3040..3098	2
+3099..309A	0
+309B..4DBF	2
+4DC0..4DFF	A
+4E00..A4CF	2
+A4D0..A66E	A
+A66F..A672	0
+A673..A67B	A
+A67C..A67D	0
+A67E..A801	A
+A802		0
+A803..A805	A
+A806		0
+A807..A80A	A
+A80B		0
+A80C..A824	A
+A825..A826	0
+A827..A8C3	A
+A8C4		0
+A8C5..A925	A
+A926..A92D	0
+A92E..A946	A
+A947..A951	0
+A952..AA28	A
+AA29..AA2E	0
+AA2F..AA30	A
+AA31..AA32	0
+AA33..AA34	A
+AA35..AA36	0
+AA37..AA42	A
+AA43		0
+AA44..AA4B	A
+AA4C		0
+AA4D..ABFF	A
+AC00..D7A3	2
+D7A4..F8FF	A
+F900..FAFF	2
+FB00..FB1D	A
+FB1E		0
+FB1F..FDFF	A
+FE00..FE0F	0
+FE10..FE1F	2
+FE20..FE26	0
+FE27..FE2F	A
+FE30..FE6F	2
+FE70..FEFE	A
+FEFF		0
+FF00..FF60	2
+FF61..FFDF	1
+FFE0..FFE6	2
+FFE7..FFF8	1
+FFF9..FFFB	0
+FFFC..101FC	1
+101FD		0
+101FE..10A00	1
+10A01..10A03	0
+10A04		1
+10A05..10A06	0
+10A07..10A0B	1
+10A0C..10A0F	0
+10A10..10A37	1
+10A38..10A3A	0
+10A3B..10A3E	1
+10A3F		0
+10A40..1D166	1
+1D167..1D169	0
+1D16A..1D17A	1
+1D17B..1D182	0
+1D183..1D184	1
+1D185..1D18B	0
+1D18C..1D1A9	1
+1D1AA..1D1AD	0
+1D1AE..1D241	1
+1D242..1D244	0
+1D245..1FFFF	1
+20000..2A6D6	2
+2A6D7..2F7FF	1
+2F800..2FA1D	2
+2FA1E..E0000	1
+E0001		0
+E0002..E001F	1
+E0020..E007F	0
+E0080..E00FF	1
+E0100..E01EF	0
+E01F0..10FFFF	1
+EOF
+
+: ${DIFF=diff}
+${DIFF} uc_width.ok uc_width.out
+result=$?
+
+rm -fr $tmpfiles
+
+exit $result
diff --git a/tests/gnu/wctob.c b/tests/gnu/wctob.c
new file mode 100755
index 00000000..1d1cc7b1
--- /dev/null
+++ b/tests/gnu/wctob.c
@@ -0,0 +1,37 @@
+/* Convert wide character to unibyte character.
+   Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+   Written by Bruno Haible <bruno@clisp.org>, 2008.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <config.h>
+
+/* Specification.  */
+#include <wchar.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+int
+wctob (wint_t wc)
+{
+  char buf[64];
+
+  if (!(MB_CUR_MAX <= sizeof (buf)))
+    abort ();
+  if (wctomb (buf, wc) == 1)
+    return (unsigned char) buf[0];
+  else
+    return EOF;
+}
diff --git a/tests/gnu/zerosize-ptr.h b/tests/gnu/zerosize-ptr.h
new file mode 100755
index 00000000..cfab2008
--- /dev/null
+++ b/tests/gnu/zerosize-ptr.h
@@ -0,0 +1,68 @@
+/* Return a pointer to a zero-size object in memory.
+   Copyright (C) 2009, 2010 Free Software Foundation, Inc.
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* ISO C 99 does not allow memcmp(), memchr() etc. to be invoked with a NULL
+   argument.  Therefore this file produces a non-NULL pointer which cannot
+   be dereferenced, if possible.  */
+
+#include <stdlib.h>
+
+/* Test whether mmap() and mprotect() are available.
+   We don't use HAVE_MMAP, because AC_FUNC_MMAP would not define it on HP-UX.
+   HAVE_MPROTECT is not enough, because mingw does not have mmap() but has an
+   mprotect() function in libgcc.a.  */
+#if HAVE_SYS_MMAN_H && HAVE_MPROTECT
+# include <fcntl.h>
+# include <unistd.h>
+# include <sys/types.h>
+# include <sys/mman.h>
+/* Define MAP_FILE when it isn't otherwise.  */
+# ifndef MAP_FILE
+#  define MAP_FILE 0
+# endif
+#endif
+
+/* Return a pointer to a zero-size object in memory (that is, actually, a
+   pointer to a page boundary where the previous page is readable and writable
+   and the next page is neither readable not writable), if possible.
+   Return NULL otherwise.  */
+
+static void *
+zerosize_ptr (void)
+{
+/* Use mmap and mprotect when they exist.  Don't test HAVE_MMAP, because it is
+   not defined on HP-UX 11 (since it does not support MAP_FIXED).  */
+#if HAVE_SYS_MMAN_H && HAVE_MPROTECT
+# if HAVE_MAP_ANONYMOUS
+  const int flags = MAP_ANONYMOUS | MAP_PRIVATE;
+  const int fd = -1;
+# else /* !HAVE_MAP_ANONYMOUS */
+  const int flags = MAP_FILE | MAP_PRIVATE;
+  int fd = open ("/dev/zero", O_RDONLY, 0666);
+  if (fd >= 0)
+# endif
+    {
+      int pagesize = getpagesize ();
+      char *two_pages =
+        (char *) mmap (NULL, 2 * pagesize, PROT_READ | PROT_WRITE,
+                       flags, fd, 0);
+      if (two_pages != (char *)(-1)
+          && mprotect (two_pages + pagesize, pagesize, PROT_NONE) == 0)
+        return two_pages + pagesize;
+    }
+#endif
+  return NULL;
+}