Remove duplicate gnulib modules.

6 files changed, 3 insertions, 764 deletions

diff --git a/gl/gnulib.mk b/gl/gnulib.mk
index f858275033..f727afe883 100644
--- a/gl/gnulib.mk
+++ b/gl/gnulib.mk
@@ -9,7 +9,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=gettext-h --avoid=malloc-posix --avoid=realloc-posix --avoid=snprintf --avoid=stdbool --avoid=stdio --avoid=sys_socket --avoid=unistd --avoid=vasnprintf --makefile-name=gnulib.mk --libtool --macro-prefix=gl arpa_inet error fdl gendocs getaddrinfo getline getpass gpl-2.0 inet_ntop inet_pton lgpl-2.1 maintainer-makefile progname readline version-etc-fsf
+# Reproduce by: gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=gettext-h --avoid=malloc-posix --avoid=realloc-posix --avoid=snprintf --avoid=stdbool --avoid=stdio --avoid=string --avoid=sys_socket --avoid=unistd --avoid=vasnprintf --makefile-name=gnulib.mk --libtool --macro-prefix=gl arpa_inet error fdl gendocs getaddrinfo getline getpass gpl-2.0 inet_ntop inet_pton lgpl-2.1 maintainer-makefile progname readline version-etc-fsf
 
 
 MOSTLYCLEANFILES += core *.stackdump
@@ -126,14 +126,6 @@ EXTRA_libgnu_la_SOURCES += inet_pton.c
 
 ## end   gnulib module inet_pton
 
-## begin gnulib module link-warning
-
-LINK_WARNING_H=$(top_srcdir)/build-aux/link-warning.h
-
-EXTRA_DIST += $(top_srcdir)/build-aux/link-warning.h
-
-## end   gnulib module link-warning
-
 ## begin gnulib module lseek
 
 
@@ -196,70 +188,6 @@ EXTRA_libgnu_la_SOURCES += strdup.c
 
 ## end   gnulib module strdup
 
-## begin gnulib module string
-
-BUILT_SOURCES += string.h
-
-# We need the following in order to create <string.h> when the system
-# doesn't have one that works with the given compiler.
-string.h: string_.h
-	rm -f $@-t $@
-	{ echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
-	  sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
-	      -e 's|@''NEXT_STRING_H''@|$(NEXT_STRING_H)|g' \
-	      -e 's|@''GNULIB_MBSLEN''@|$(GNULIB_MBSLEN)|g' \
-	      -e 's|@''GNULIB_MBSNLEN''@|$(GNULIB_MBSNLEN)|g' \
-	      -e 's|@''GNULIB_MBSCHR''@|$(GNULIB_MBSCHR)|g' \
-	      -e 's|@''GNULIB_MBSRCHR''@|$(GNULIB_MBSRCHR)|g' \
-	      -e 's|@''GNULIB_MBSSTR''@|$(GNULIB_MBSSTR)|g' \
-	      -e 's|@''GNULIB_MBSCASECMP''@|$(GNULIB_MBSCASECMP)|g' \
-	      -e 's|@''GNULIB_MBSNCASECMP''@|$(GNULIB_MBSNCASECMP)|g' \
-	      -e 's|@''GNULIB_MBSPCASECMP''@|$(GNULIB_MBSPCASECMP)|g' \
-	      -e 's|@''GNULIB_MBSCASESTR''@|$(GNULIB_MBSCASESTR)|g' \
-	      -e 's|@''GNULIB_MBSCSPN''@|$(GNULIB_MBSCSPN)|g' \
-	      -e 's|@''GNULIB_MBSPBRK''@|$(GNULIB_MBSPBRK)|g' \
-	      -e 's|@''GNULIB_MBSSPN''@|$(GNULIB_MBSSPN)|g' \
-	      -e 's|@''GNULIB_MBSSEP''@|$(GNULIB_MBSSEP)|g' \
-	      -e 's|@''GNULIB_MBSTOK_R''@|$(GNULIB_MBSTOK_R)|g' \
-	      -e 's|@''GNULIB_MEMMEM''@|$(GNULIB_MEMMEM)|g' \
-	      -e 's|@''GNULIB_MEMPCPY''@|$(GNULIB_MEMPCPY)|g' \
-	      -e 's|@''GNULIB_MEMRCHR''@|$(GNULIB_MEMRCHR)|g' \
-	      -e 's|@''GNULIB_STPCPY''@|$(GNULIB_STPCPY)|g' \
-	      -e 's|@''GNULIB_STPNCPY''@|$(GNULIB_STPNCPY)|g' \
-	      -e 's|@''GNULIB_STRCHRNUL''@|$(GNULIB_STRCHRNUL)|g' \
-	      -e 's|@''GNULIB_STRDUP''@|$(GNULIB_STRDUP)|g' \
-	      -e 's|@''GNULIB_STRNDUP''@|$(GNULIB_STRNDUP)|g' \
-	      -e 's|@''GNULIB_STRNLEN''@|$(GNULIB_STRNLEN)|g' \
-	      -e 's|@''GNULIB_STRPBRK''@|$(GNULIB_STRPBRK)|g' \
-	      -e 's|@''GNULIB_STRSEP''@|$(GNULIB_STRSEP)|g' \
-	      -e 's|@''GNULIB_STRCASESTR''@|$(GNULIB_STRCASESTR)|g' \
-	      -e 's|@''GNULIB_STRTOK_R''@|$(GNULIB_STRTOK_R)|g' \
-	      -e 's|@''HAVE_DECL_MEMMEM''@|$(HAVE_DECL_MEMMEM)|g' \
-	      -e 's|@''HAVE_MEMPCPY''@|$(HAVE_MEMPCPY)|g' \
-	      -e 's|@''HAVE_DECL_MEMRCHR''@|$(HAVE_DECL_MEMRCHR)|g' \
-	      -e 's|@''HAVE_STPCPY''@|$(HAVE_STPCPY)|g' \
-	      -e 's|@''HAVE_STPNCPY''@|$(HAVE_STPNCPY)|g' \
-	      -e 's|@''HAVE_STRCASECMP''@|$(HAVE_STRCASECMP)|g' \
-	      -e 's|@''HAVE_DECL_STRNCASECMP''@|$(HAVE_DECL_STRNCASECMP)|g' \
-	      -e 's|@''HAVE_STRCHRNUL''@|$(HAVE_STRCHRNUL)|g' \
-	      -e 's|@''HAVE_DECL_STRDUP''@|$(HAVE_DECL_STRDUP)|g' \
-	      -e 's|@''HAVE_STRNDUP''@|$(HAVE_STRNDUP)|g' \
-	      -e 's|@''HAVE_DECL_STRNDUP''@|$(HAVE_DECL_STRNDUP)|g' \
-	      -e 's|@''HAVE_DECL_STRNLEN''@|$(HAVE_DECL_STRNLEN)|g' \
-	      -e 's|@''HAVE_STRPBRK''@|$(HAVE_STRPBRK)|g' \
-	      -e 's|@''HAVE_STRSEP''@|$(HAVE_STRSEP)|g' \
-	      -e 's|@''HAVE_STRCASESTR''@|$(HAVE_STRCASESTR)|g' \
-	      -e 's|@''HAVE_DECL_STRTOK_R''@|$(HAVE_DECL_STRTOK_R)|g' \
-	      -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
-	      < $(srcdir)/string_.h; \
-	} > $@-t
-	mv $@-t $@
-MOSTLYCLEANFILES += string.h string.h-t
-
-EXTRA_DIST += string_.h
-
-## end   gnulib module string
-
 ## begin gnulib module version-etc
 
 libgnu_la_SOURCES += version-etc.h version-etc.c
diff --git a/gl/m4/extensions.m4 b/gl/m4/extensions.m4
deleted file mode 100644
index 143a9e5403..0000000000
--- a/gl/m4/extensions.m4
+++ /dev/null
@@ -1,58 +0,0 @@
-# serial 4  -*- Autoconf -*-
-# Enable extensions on systems that normally disable them.
-
-# Copyright (C) 2003, 2006 Free Software Foundation, Inc.
-# This file 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 definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS
-# Autoconf.  Perhaps we can remove this once we can assume Autoconf
-# 2.61 or later everywhere, but since CVS Autoconf mutates rapidly
-# enough in this area it's likely we'll need to redefine
-# AC_USE_SYSTEM_EXTENSIONS for quite some time.
-
-# AC_USE_SYSTEM_EXTENSIONS
-# ------------------------
-# Enable extensions on systems that normally disable them,
-# typically due to standards-conformance issues.
-AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS],
-[
-  AC_BEFORE([$0], [AC_COMPILE_IFELSE])
-  AC_BEFORE([$0], [AC_RUN_IFELSE])
-
-  AC_REQUIRE([AC_GNU_SOURCE])
-  AC_REQUIRE([AC_AIX])
-  AC_REQUIRE([AC_MINIX])
-
-  AH_VERBATIM([__EXTENSIONS__],
-[/* Enable extensions on Solaris.  */
-#ifndef __EXTENSIONS__
-# undef __EXTENSIONS__
-#endif
-#ifndef _POSIX_PTHREAD_SEMANTICS
-# undef _POSIX_PTHREAD_SEMANTICS
-#endif
-#ifndef _TANDEM_SOURCE
-# undef _TANDEM_SOURCE
-#endif])
-  AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__],
-    [ac_cv_safe_to_define___extensions__],
-    [AC_COMPILE_IFELSE(
-       [AC_LANG_PROGRAM([
-#	  define __EXTENSIONS__ 1
-	  AC_INCLUDES_DEFAULT])],
-       [ac_cv_safe_to_define___extensions__=yes],
-       [ac_cv_safe_to_define___extensions__=no])])
-  test $ac_cv_safe_to_define___extensions__ = yes &&
-    AC_DEFINE([__EXTENSIONS__])
-  AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
-  AC_DEFINE([_TANDEM_SOURCE])
-])
-
-# gl_USE_SYSTEM_EXTENSIONS
-# ------------------------
-# Enable extensions on systems that normally disable them,
-# typically due to standards-conformance issues.
-AC_DEFUN([gl_USE_SYSTEM_EXTENSIONS],
-  [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])])
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index e99f2982ef..4ca757a20d 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -15,12 +15,12 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=gettext-h --avoid=malloc-posix --avoid=realloc-posix --avoid=snprintf --avoid=stdbool --avoid=stdio --avoid=sys_socket --avoid=unistd --avoid=vasnprintf --makefile-name=gnulib.mk --libtool --macro-prefix=gl arpa_inet error fdl gendocs getaddrinfo getline getpass gpl-2.0 inet_ntop inet_pton lgpl-2.1 maintainer-makefile progname readline version-etc-fsf
+#   gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --aux-dir=build-aux --avoid=gettext-h --avoid=malloc-posix --avoid=realloc-posix --avoid=snprintf --avoid=stdbool --avoid=stdio --avoid=string --avoid=sys_socket --avoid=unistd --avoid=vasnprintf --makefile-name=gnulib.mk --libtool --macro-prefix=gl arpa_inet error fdl gendocs getaddrinfo getline getpass gpl-2.0 inet_ntop inet_pton lgpl-2.1 maintainer-makefile progname readline version-etc-fsf
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([gl/override])
 gl_MODULES([arpa_inet error fdl gendocs getaddrinfo getline getpass gpl-2.0 inet_ntop inet_pton lgpl-2.1 maintainer-makefile progname readline version-etc-fsf])
-gl_AVOID([gettext-h malloc-posix realloc-posix snprintf stdbool stdio sys_socket unistd vasnprintf])
+gl_AVOID([gettext-h malloc-posix realloc-posix snprintf stdbool stdio string sys_socket unistd vasnprintf])
 gl_SOURCE_BASE([gl])
 gl_M4_BASE([gl/m4])
 gl_PO_BASE([])
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 7bd1e8e157..fcade33317 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -26,7 +26,6 @@ AC_DEFUN([gl_EARLY],
   m4_pattern_allow([^gl_LTLIBOBJS$])dnl a variable
   AC_REQUIRE([AC_PROG_RANLIB])
   AC_REQUIRE([AC_GNU_SOURCE])
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
   AC_REQUIRE([AC_FUNC_FSEEKO])
   dnl Some compilers (e.g., AIX 5.3 cc) need to be in c99 mode
   dnl for the builtin va_copy to work.  With Autoconf 2.60 or later,
@@ -67,7 +66,6 @@ AC_DEFUN([gl_INIT],
   gl_STDARG_H
   gl_FUNC_STRDUP
   gl_STRING_MODULE_INDICATOR([strdup])
-  gl_HEADER_STRING_H
   m4_popdef([AC_LIBSOURCES])
   m4_popdef([AC_REPLACE_FUNCS])
   m4_popdef([AC_LIBOBJ])
@@ -108,7 +106,6 @@ AC_DEFUN([gl_FILE_LIST], [
   build-aux/GNUmakefile
   build-aux/config.rpath
   build-aux/gendocs.sh
-  build-aux/link-warning.h
   build-aux/maint.mk
   doc/fdl.texi
   doc/gendocs_template
@@ -135,13 +132,11 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/readline.c
   lib/readline.h
   lib/strdup.c
-  lib/string_.h
   lib/version-etc-fsf.c
   lib/version-etc.c
   lib/version-etc.h
   m4/arpa_inet_h.m4
   m4/error.m4
-  m4/extensions.m4
   m4/fseeko.m4
   m4/getaddrinfo.m4
   m4/getdelim.m4
@@ -160,5 +155,4 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/socklen.m4
   m4/stdarg.m4
   m4/strdup.m4
-  m4/string_h.m4
 ])
diff --git a/gl/m4/string_h.m4 b/gl/m4/string_h.m4
deleted file mode 100644
index ec51e9a018..0000000000
--- a/gl/m4/string_h.m4
+++ /dev/null
@@ -1,77 +0,0 @@
-# Configure a GNU-like replacement for <string.h>.
-
-# Copyright (C) 2007 Free Software Foundation, Inc.
-# This file 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.
-
-# Written by Paul Eggert.
-
-AC_DEFUN([gl_HEADER_STRING_H],
-[
-  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
-  dnl once only, before all statements that occur in other macros.
-  AC_REQUIRE([gl_HEADER_STRING_H_BODY])
-])
-
-AC_DEFUN([gl_HEADER_STRING_H_BODY],
-[
-  AC_REQUIRE([AC_C_RESTRICT])
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-  gl_CHECK_NEXT_HEADERS([string.h])
-])
-
-AC_DEFUN([gl_STRING_MODULE_INDICATOR],
-[
-  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
-  GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
-])
-
-AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
-[
-  GNULIB_MEMMEM=0;      AC_SUBST([GNULIB_MEMMEM])
-  GNULIB_MEMPCPY=0;     AC_SUBST([GNULIB_MEMPCPY])
-  GNULIB_MEMRCHR=0;     AC_SUBST([GNULIB_MEMRCHR])
-  GNULIB_STPCPY=0;      AC_SUBST([GNULIB_STPCPY])
-  GNULIB_STPNCPY=0;     AC_SUBST([GNULIB_STPNCPY])
-  GNULIB_STRCHRNUL=0;   AC_SUBST([GNULIB_STRCHRNUL])
-  GNULIB_STRDUP=0;      AC_SUBST([GNULIB_STRDUP])
-  GNULIB_STRNDUP=0;     AC_SUBST([GNULIB_STRNDUP])
-  GNULIB_STRNLEN=0;     AC_SUBST([GNULIB_STRNLEN])
-  GNULIB_STRPBRK=0;     AC_SUBST([GNULIB_STRPBRK])
-  GNULIB_STRSEP=0;      AC_SUBST([GNULIB_STRSEP])
-  GNULIB_STRCASESTR=0;  AC_SUBST([GNULIB_STRCASESTR])
-  GNULIB_STRTOK_R=0;    AC_SUBST([GNULIB_STRTOK_R])
-  GNULIB_MBSLEN=0;      AC_SUBST([GNULIB_MBSLEN])
-  GNULIB_MBSNLEN=0;     AC_SUBST([GNULIB_MBSNLEN])
-  GNULIB_MBSCHR=0;      AC_SUBST([GNULIB_MBSCHR])
-  GNULIB_MBSRCHR=0;     AC_SUBST([GNULIB_MBSRCHR])
-  GNULIB_MBSSTR=0;      AC_SUBST([GNULIB_MBSSTR])
-  GNULIB_MBSCASECMP=0;  AC_SUBST([GNULIB_MBSCASECMP])
-  GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP])
-  GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP])
-  GNULIB_MBSCASESTR=0;  AC_SUBST([GNULIB_MBSCASESTR])
-  GNULIB_MBSCSPN=0;     AC_SUBST([GNULIB_MBSCSPN])
-  GNULIB_MBSPBRK=0;     AC_SUBST([GNULIB_MBSPBRK])
-  GNULIB_MBSSPN=0;      AC_SUBST([GNULIB_MBSSPN])
-  GNULIB_MBSSEP=0;      AC_SUBST([GNULIB_MBSSEP])
-  GNULIB_MBSTOK_R=0;    AC_SUBST([GNULIB_MBSTOK_R])
-  dnl Assume proper GNU behavior unless another module says otherwise.
-  HAVE_DECL_MEMMEM=1;		AC_SUBST([HAVE_DECL_MEMMEM])
-  HAVE_MEMPCPY=1;		AC_SUBST([HAVE_MEMPCPY])
-  HAVE_DECL_MEMRCHR=1;		AC_SUBST([HAVE_DECL_MEMRCHR])
-  HAVE_STPCPY=1;		AC_SUBST([HAVE_STPCPY])
-  HAVE_STPNCPY=1;		AC_SUBST([HAVE_STPNCPY])
-  HAVE_STRCASECMP=1;		AC_SUBST([HAVE_STRCASECMP])
-  HAVE_DECL_STRNCASECMP=1;	AC_SUBST([HAVE_DECL_STRNCASECMP])
-  HAVE_STRCHRNUL=1;		AC_SUBST([HAVE_STRCHRNUL])
-  HAVE_DECL_STRDUP=1;		AC_SUBST([HAVE_DECL_STRDUP])
-  HAVE_STRNDUP=1;		AC_SUBST([HAVE_STRNDUP])
-  HAVE_DECL_STRNDUP=1;		AC_SUBST([HAVE_DECL_STRNDUP])
-  HAVE_DECL_STRNLEN=1;		AC_SUBST([HAVE_DECL_STRNLEN])
-  HAVE_STRPBRK=1;		AC_SUBST([HAVE_STRPBRK])
-  HAVE_STRSEP=1;		AC_SUBST([HAVE_STRSEP])
-  HAVE_STRCASESTR=1;		AC_SUBST([HAVE_STRCASESTR])
-  HAVE_DECL_STRTOK_R=1;		AC_SUBST([HAVE_DECL_STRTOK_R])
-])
diff --git a/gl/string_.h b/gl/string_.h
deleted file mode 100644
index bfb22b0ebc..0000000000
--- a/gl/string_.h
+++ /dev/null
@@ -1,548 +0,0 @@
-/* A GNU-like <string.h>.
-
-   Copyright (C) 1995-1996, 2001-2007 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 2, 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 _GL_STRING_H
-
-/* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT@ @NEXT_STRING_H@
-
-#ifndef _GL_STRING_H
-#define _GL_STRING_H
-
-
-/* The definition of GL_LINK_WARNING is copied here.  */
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Return the first occurrence of NEEDLE in HAYSTACK.  */
-#if @GNULIB_MEMMEM@
-# if ! @HAVE_DECL_MEMMEM@
-extern void *memmem (void const *__haystack, size_t __haystack_len,
-		     void const *__needle, size_t __needle_len);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memmem
-# define memmem(a,al,b,bl) \
-    (GL_LINK_WARNING ("memmem is unportable - " \
-                      "use gnulib module memmem for portability"), \
-     memmem (a, al, b, bl))
-#endif
-
-/* Copy N bytes of SRC to DEST, return pointer to bytes after the
-   last written byte.  */
-#if @GNULIB_MEMPCPY@
-# if ! @HAVE_MEMPCPY@
-extern void *mempcpy (void *restrict __dest, void const *restrict __src,
-		      size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef mempcpy
-# define mempcpy(a,b,n) \
-    (GL_LINK_WARNING ("mempcpy is unportable - " \
-                      "use gnulib module mempcpy for portability"), \
-     mempcpy (a, b, n))
-#endif
-
-/* Search backwards through a block for a byte (specified as an int).  */
-#if @GNULIB_MEMRCHR@
-# if ! @HAVE_DECL_MEMRCHR@
-extern void *memrchr (void const *, int, size_t);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef memrchr
-# define memrchr(a,b,c) \
-    (GL_LINK_WARNING ("memrchr is unportable - " \
-                      "use gnulib module memrchr for portability"), \
-     memrchr (a, b, c))
-#endif
-
-/* Copy SRC to DST, returning the address of the terminating '\0' in DST.  */
-#if @GNULIB_STPCPY@
-# if ! @HAVE_STPCPY@
-extern char *stpcpy (char *restrict __dst, char const *restrict __src);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef stpcpy
-# define stpcpy(a,b) \
-    (GL_LINK_WARNING ("stpcpy is unportable - " \
-                      "use gnulib module stpcpy for portability"), \
-     stpcpy (a, b))
-#endif
-
-/* Copy no more than N bytes of SRC to DST, returning a pointer past the
-   last non-NUL byte written into DST.  */
-#if @GNULIB_STPNCPY@
-# if ! @HAVE_STPNCPY@
-#  define stpncpy gnu_stpncpy
-extern char *stpncpy (char *restrict __dst, char const *restrict __src,
-		      size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef stpncpy
-# define stpncpy(a,b,n) \
-    (GL_LINK_WARNING ("stpncpy is unportable - " \
-                      "use gnulib module stpncpy for portability"), \
-     stpncpy (a, b, n))
-#endif
-
-/* Compare strings S1 and S2, ignoring case, returning less than, equal to or
-   greater than zero if S1 is lexicographically less than, equal to or greater
-   than S2.
-   Note: This function does not work in multibyte locales.  */
-#if ! @HAVE_STRCASECMP@
-extern int strcasecmp (char const *s1, char const *s2);
-#endif
-#if defined GNULIB_POSIXCHECK
-/* strcasecmp() does not work with multibyte strings:
-   POSIX says that it operates on "strings", and "string" in POSIX is defined
-   as a sequence of bytes, not of characters.   */
-# undef strcasecmp
-# define strcasecmp(a,b) \
-    (GL_LINK_WARNING ("strcasecmp cannot work correctly on character strings " \
-                      "in multibyte locales - " \
-                      "use mbscasecmp if you care about " \
-                      "internationalization, or use c_strcasecmp (from " \
-                      "gnulib module c-strcase) if you want a locale " \
-                      "independent function"), \
-     strcasecmp (a, b))
-#endif
-
-/* Compare no more than N bytes of strings S1 and S2, ignoring case,
-   returning less than, equal to or greater than zero if S1 is
-   lexicographically less than, equal to or greater than S2.
-   Note: This function cannot work correctly in multibyte locales.  */
-#if ! @HAVE_DECL_STRNCASECMP@
-extern int strncasecmp (char const *s1, char const *s2, size_t n);
-#endif
-#if defined GNULIB_POSIXCHECK
-/* strncasecmp() does not work with multibyte strings:
-   POSIX says that it operates on "strings", and "string" in POSIX is defined
-   as a sequence of bytes, not of characters.  */
-# undef strncasecmp
-# define strncasecmp(a,b,n) \
-    (GL_LINK_WARNING ("strncasecmp cannot work correctly on character " \
-                      "strings in multibyte locales - " \
-                      "use mbsncasecmp or mbspcasecmp if you care about " \
-                      "internationalization, or use c_strncasecmp (from " \
-                      "gnulib module c-strcase) if you want a locale " \
-                      "independent function"), \
-     strncasecmp (a, b, n))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strchr() does not work with multibyte strings if the locale encoding is
-   GB18030 and the character to be searched is a digit.  */
-# undef strchr
-# define strchr(s,c) \
-    (GL_LINK_WARNING ("strchr cannot work correctly on character strings " \
-                      "in some multibyte locales - " \
-                      "use mbschr if you care about internationalization"), \
-     strchr (s, c))
-#endif
-
-/* Find the first occurrence of C in S or the final NUL byte.  */
-#if @GNULIB_STRCHRNUL@
-# if ! @HAVE_STRCHRNUL@
-extern char *strchrnul (char const *__s, int __c_in);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strchrnul
-# define strchrnul(a,b) \
-    (GL_LINK_WARNING ("strchrnul is unportable - " \
-                      "use gnulib module strchrnul for portability"), \
-     strchrnul (a, b))
-#endif
-
-/* Duplicate S, returning an identical malloc'd string.  */
-#if @GNULIB_STRDUP@
-# if ! @HAVE_DECL_STRDUP@ && ! defined strdup
-extern char *strdup (char const *__s);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strdup
-# define strdup(a) \
-    (GL_LINK_WARNING ("strdup is unportable - " \
-                      "use gnulib module strdup for portability"), \
-     strdup (a))
-#endif
-
-/* Return a newly allocated copy of at most N bytes of STRING.  */
-#if @GNULIB_STRNDUP@
-# if ! @HAVE_STRNDUP@
-#  undef strndup
-#  define strndup rpl_strndup
-# endif
-# if ! @HAVE_STRNDUP@ || ! @HAVE_DECL_STRNDUP@
-extern char *strndup (char const *__string, size_t __n);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strndup
-# define strndup(a,n) \
-    (GL_LINK_WARNING ("strndup is unportable - " \
-                      "use gnulib module strndup for portability"), \
-     strndup (a, n))
-#endif
-
-/* Find the length (number of bytes) of STRING, but scan at most
-   MAXLEN bytes.  If no '\0' terminator is found in that many bytes,
-   return MAXLEN.  */
-#if @GNULIB_STRNLEN@
-# if ! @HAVE_DECL_STRNLEN@
-extern size_t strnlen (char const *__string, size_t __maxlen);
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strnlen
-# define strnlen(a,n) \
-    (GL_LINK_WARNING ("strnlen is unportable - " \
-                      "use gnulib module strnlen for portability"), \
-     strnlen (a, n))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strcspn() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it does not work with multibyte strings if the
-   locale encoding is GB18030 and one of the characters to be searched is a
-   digit.  */
-# undef strcspn
-# define strcspn(s,a) \
-    (GL_LINK_WARNING ("strcspn cannot work correctly on character strings " \
-                      "in multibyte locales - " \
-                      "use mbscspn if you care about internationalization"), \
-     strcspn (s, a))
-#endif
-
-/* Find the first occurrence in S of any character in ACCEPT.  */
-#if @GNULIB_STRPBRK@
-# if ! @HAVE_STRPBRK@
-extern char *strpbrk (char const *__s, char const *__accept);
-# endif
-# if defined GNULIB_POSIXCHECK
-/* strpbrk() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it does not work with multibyte strings if the
-   locale encoding is GB18030 and one of the characters to be searched is a
-   digit.  */
-#  undef strpbrk
-#  define strpbrk(s,a) \
-     (GL_LINK_WARNING ("strpbrk cannot work correctly on character strings " \
-                       "in multibyte locales - " \
-                       "use mbspbrk if you care about internationalization"), \
-      strpbrk (s, a))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strpbrk
-# define strpbrk(s,a) \
-    (GL_LINK_WARNING ("strpbrk is unportable - " \
-                      "use gnulib module strpbrk for portability"), \
-     strpbrk (s, a))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strspn() assumes the second argument is a list of single-byte characters.
-   Even in this simple case, it cannot work with multibyte strings.  */
-# undef strspn
-# define strspn(s,a) \
-    (GL_LINK_WARNING ("strspn cannot work correctly on character strings " \
-                      "in multibyte locales - " \
-                      "use mbsspn if you care about internationalization"), \
-     strspn (s, a))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strrchr() does not work with multibyte strings if the locale encoding is
-   GB18030 and the character to be searched is a digit.  */
-# undef strrchr
-# define strrchr(s,c) \
-    (GL_LINK_WARNING ("strrchr cannot work correctly on character strings " \
-                      "in some multibyte locales - " \
-                      "use mbsrchr if you care about internationalization"), \
-     strrchr (s, c))
-#endif
-
-/* Search the next delimiter (char listed in DELIM) starting at *STRINGP.
-   If one is found, overwrite it with a NUL, and advance *STRINGP
-   to point to the next char after it.  Otherwise, set *STRINGP to NULL.
-   If *STRINGP was already NULL, nothing happens.
-   Return the old value of *STRINGP.
-
-   This is a variant of strtok() that is multithread-safe and supports
-   empty fields.
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-   Caveat: It doesn't work with multibyte strings unless all of the delimiter
-           characters are ASCII characters < 0x30.
-
-   See also strtok_r().  */
-#if @GNULIB_STRSEP@
-# if ! @HAVE_STRSEP@
-extern char *strsep (char **restrict __stringp, char const *restrict __delim);
-# endif
-# if defined GNULIB_POSIXCHECK
-#  undef strsep
-#  define strsep(s,d) \
-     (GL_LINK_WARNING ("strsep cannot work correctly on character strings " \
-                       "in multibyte locales - " \
-                       "use mbssep if you care about internationalization"), \
-      strsep (s, d))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strsep
-# define strsep(s,d) \
-    (GL_LINK_WARNING ("strsep is unportable - " \
-                      "use gnulib module strsep for portability"), \
-     strsep (s, d))
-#endif
-
-#if defined GNULIB_POSIXCHECK
-/* strstr() does not work with multibyte strings if the locale encoding is
-   different from UTF-8:
-   POSIX says that it operates on "strings", and "string" in POSIX is defined
-   as a sequence of bytes, not of characters.  */
-# undef strstr
-# define strstr(a,b) \
-    (GL_LINK_WARNING ("strstr cannot work correctly on character strings " \
-                      "in most multibyte locales - " \
-                      "use mbsstr if you care about internationalization"), \
-     strstr (a, b))
-#endif
-
-/* Find the first occurrence of NEEDLE in HAYSTACK, using case-insensitive
-   comparison.  */
-#if ! @HAVE_STRCASESTR@
-extern char *strcasestr (const char *haystack, const char *needle);
-#endif
-#if defined GNULIB_POSIXCHECK
-/* strcasestr() does not work with multibyte strings:
-   It is a glibc extension, and glibc implements it only for unibyte
-   locales.  */
-# undef strcasestr
-# define strcasestr(a,b) \
-    (GL_LINK_WARNING ("strcasestr does work correctly on character strings " \
-                      "in multibyte locales - " \
-                      "use mbscasestr if you care about " \
-                      "internationalization, or use c-strcasestr if you want " \
-                      "a locale independent function"), \
-     strcasestr (a, b))
-#endif
-
-/* Parse S into tokens separated by characters in DELIM.
-   If S is NULL, the saved pointer in SAVE_PTR is used as
-   the next starting point.  For example:
-	char s[] = "-abc-=-def";
-	char *sp;
-	x = strtok_r(s, "-", &sp);	// x = "abc", sp = "=-def"
-	x = strtok_r(NULL, "-=", &sp);	// x = "def", sp = NULL
-	x = strtok_r(NULL, "=", &sp);	// x = NULL
-		// s = "abc\0-def\0"
-
-   This is a variant of strtok() that is multithread-safe.
-
-   For the POSIX documentation for this function, see:
-   http://www.opengroup.org/susv3xsh/strtok.html
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-   Caveat: It doesn't work with multibyte strings unless all of the delimiter
-           characters are ASCII characters < 0x30.
-
-   See also strsep().  */
-#if @GNULIB_STRTOK_R@
-# if ! @HAVE_DECL_STRTOK_R@
-extern char *strtok_r (char *restrict s, char const *restrict delim,
-		       char **restrict save_ptr);
-# endif
-# if defined GNULIB_POSIXCHECK
-#  undef strtok_r
-#  define strtok_r(s,d,p) \
-     (GL_LINK_WARNING ("strtok_r cannot work correctly on character strings " \
-                       "in multibyte locales - " \
-                       "use mbstok_r if you care about internationalization"), \
-      strtok_r (s, d, p))
-# endif
-#elif defined GNULIB_POSIXCHECK
-# undef strtok_r
-# define strtok_r(s,d,p) \
-    (GL_LINK_WARNING ("strtok_r is unportable - " \
-                      "use gnulib module strtok_r for portability"), \
-     strtok_r (s, d, p))
-#endif
-
-
-/* The following functions are not specified by POSIX.  They are gnulib
-   extensions.  */
-
-#if @GNULIB_MBSLEN@
-/* Return the number of multibyte characters in the character string STRING.
-   This considers multibyte characters, unlike strlen, which counts bytes.  */
-extern size_t mbslen (const char *string);
-#endif
-
-#if @GNULIB_MBSNLEN@
-/* Return the number of multibyte characters in the character string starting
-   at STRING and ending at STRING + LEN.  */
-extern size_t mbsnlen (const char *string, size_t len);
-#endif
-
-#if @GNULIB_MBSCHR@
-/* Locate the first single-byte character C in the character string STRING,
-   and return a pointer to it.  Return NULL if C is not found in STRING.
-   Unlike strchr(), this function works correctly in multibyte locales with
-   encodings such as GB18030.  */
-# define mbschr rpl_mbschr /* avoid collision with HP-UX function */
-extern char * mbschr (const char *string, int c);
-#endif
-
-#if @GNULIB_MBSRCHR@
-/* Locate the last single-byte character C in the character string STRING,
-   and return a pointer to it.  Return NULL if C is not found in STRING.
-   Unlike strrchr(), this function works correctly in multibyte locales with
-   encodings such as GB18030.  */
-# define mbsrchr rpl_mbsrchr /* avoid collision with HP-UX function */
-extern char * mbsrchr (const char *string, int c);
-#endif
-
-#if @GNULIB_MBSSTR@
-/* Find the first occurrence of the character string NEEDLE in the character
-   string HAYSTACK.  Return NULL if NEEDLE is not found in HAYSTACK.
-   Unlike strstr(), this function works correctly in multibyte locales with
-   encodings different from UTF-8.  */
-extern char * mbsstr (const char *haystack, const char *needle);
-#endif
-
-#if @GNULIB_MBSCASECMP@
-/* Compare the character strings S1 and S2, ignoring case, returning less than,
-   equal to or greater than zero if S1 is lexicographically less than, equal to
-   or greater than S2.
-   Note: This function may, in multibyte locales, return 0 for strings of
-   different lengths!
-   Unlike strcasecmp(), this function works correctly in multibyte locales.  */
-extern int mbscasecmp (const char *s1, const char *s2);
-#endif
-
-#if @GNULIB_MBSNCASECMP@
-/* Compare the initial segment of the character string S1 consisting of at most
-   N characters with the initial segment of the character string S2 consisting
-   of at most N characters, ignoring case, returning less than, equal to or
-   greater than zero if the initial segment of S1 is lexicographically less
-   than, equal to or greater than the initial segment of S2.
-   Note: This function may, in multibyte locales, return 0 for initial segments
-   of different lengths!
-   Unlike strncasecmp(), this function works correctly in multibyte locales.
-   But beware that N is not a byte count but a character count!  */
-extern int mbsncasecmp (const char *s1, const char *s2, size_t n);
-#endif
-
-#if @GNULIB_MBSPCASECMP@
-/* Compare the initial segment of the character string STRING consisting of
-   at most mbslen (PREFIX) characters with the character string PREFIX,
-   ignoring case, returning less than, equal to or greater than zero if this
-   initial segment is lexicographically less than, equal to or greater than
-   PREFIX.
-   Note: This function may, in multibyte locales, return 0 if STRING is of
-   smaller length than PREFIX!
-   Unlike strncasecmp(), this function works correctly in multibyte
-   locales.  */
-extern char * mbspcasecmp (const char *string, const char *prefix);
-#endif
-
-#if @GNULIB_MBSCASESTR@
-/* Find the first occurrence of the character string NEEDLE in the character
-   string HAYSTACK, using case-insensitive comparison.
-   Note: This function may, in multibyte locales, return success even if
-   strlen (haystack) < strlen (needle) !
-   Unlike strcasestr(), this function works correctly in multibyte locales.  */
-extern char * mbscasestr (const char *haystack, const char *needle);
-#endif
-
-#if @GNULIB_MBSCSPN@
-/* Find the first occurrence in the character string STRING of any character
-   in the character string ACCEPT.  Return the number of bytes from the
-   beginning of the string to this occurrence, or to the end of the string
-   if none exists.
-   Unlike strcspn(), this function works correctly in multibyte locales.  */
-extern size_t mbscspn (const char *string, const char *accept);
-#endif
-
-#if @GNULIB_MBSPBRK@
-/* Find the first occurrence in the character string STRING of any character
-   in the character string ACCEPT.  Return the pointer to it, or NULL if none
-   exists.
-   Unlike strpbrk(), this function works correctly in multibyte locales.  */
-# define mbspbrk rpl_mbspbrk /* avoid collision with HP-UX function */
-extern char * mbspbrk (const char *string, const char *accept);
-#endif
-
-#if @GNULIB_MBSSPN@
-/* Find the first occurrence in the character string STRING of any character
-   not in the character string REJECT.  Return the number of bytes from the
-   beginning of the string to this occurrence, or to the end of the string
-   if none exists.
-   Unlike strspn(), this function works correctly in multibyte locales.  */
-extern size_t mbsspn (const char *string, const char *reject);
-#endif
-
-#if @GNULIB_MBSSEP@
-/* Search the next delimiter (multibyte character listed in the character
-   string DELIM) starting at the character string *STRINGP.
-   If one is found, overwrite it with a NUL, and advance *STRINGP to point
-   to the next multibyte character after it.  Otherwise, set *STRINGP to NULL.
-   If *STRINGP was already NULL, nothing happens.
-   Return the old value of *STRINGP.
-
-   This is a variant of mbstok_r() that supports empty fields.
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-
-   See also mbstok_r().  */
-extern char * mbssep (char **stringp, const char *delim);
-#endif
-
-#if @GNULIB_MBSTOK_R@
-/* Parse the character string STRING into tokens separated by characters in
-   the character string DELIM.
-   If STRING is NULL, the saved pointer in SAVE_PTR is used as
-   the next starting point.  For example:
-	char s[] = "-abc-=-def";
-	char *sp;
-	x = mbstok_r(s, "-", &sp);	// x = "abc", sp = "=-def"
-	x = mbstok_r(NULL, "-=", &sp);	// x = "def", sp = NULL
-	x = mbstok_r(NULL, "=", &sp);	// x = NULL
-		// s = "abc\0-def\0"
-
-   Caveat: It modifies the original string.
-   Caveat: These functions cannot be used on constant strings.
-   Caveat: The identity of the delimiting character is lost.
-
-   See also mbssep().  */
-extern char * mbstok_r (char *string, const char *delim, char **save_ptr);
-#endif
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _GL_STRING_H */
-#endif /* _GL_STRING_H */