Update gnulib files.

4 files changed, 56 insertions, 2 deletions

diff --git a/gl/Makefile.am b/gl/Makefile.am
index c7cfc7e267..e2c075879d 100644
--- a/gl/Makefile.am
+++ b/gl/Makefile.am
@@ -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 --tests-base=gl/tests --aux-dir=build-aux --with-tests --libtool --macro-prefix=gl --no-vc-files accept arpa_inet autobuild bind close connect error fdl-1.3 gendocs getaddrinfo getline getpass-gnu gnupload gpl-3.0 inet_ntop inet_pton lgpl-2.1 listen maintainer-makefile minmax perror pmccabe2html progname read-file readline recv select send setsockopt shutdown socket sys_stat 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 --tests-base=gl/tests --aux-dir=build-aux --with-tests --libtool --macro-prefix=gl --no-vc-files accept arpa_inet autobuild bind close connect error fdl-1.3 gendocs getaddrinfo getline getpass-gnu gnupload gpl-3.0 inet_ntop inet_pton lgpl-2.1 listen maintainer-makefile minmax perror pmccabe2html progname read-file readline recv select send setsockopt shutdown socket sys_stat version-etc-fsf warnings
 
 AUTOMAKE_OPTIONS = 1.5 gnits
 
diff --git a/gl/m4/gnulib-cache.m4 b/gl/m4/gnulib-cache.m4
index 6fc3e49663..6e42289883 100644
--- a/gl/m4/gnulib-cache.m4
+++ b/gl/m4/gnulib-cache.m4
@@ -15,7 +15,7 @@
 
 
 # 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 --tests-base=gl/tests --aux-dir=build-aux --with-tests --libtool --macro-prefix=gl --no-vc-files accept arpa_inet autobuild bind close connect error fdl-1.3 gendocs getaddrinfo getline getpass-gnu gnupload gpl-3.0 inet_ntop inet_pton lgpl-2.1 listen maintainer-makefile minmax perror pmccabe2html progname read-file readline recv select send setsockopt shutdown socket sys_stat version-etc-fsf
+#   gnulib-tool --import --dir=. --local-dir=gl/override --lib=libgnu --source-base=gl --m4-base=gl/m4 --doc-base=doc --tests-base=gl/tests --aux-dir=build-aux --with-tests --libtool --macro-prefix=gl --no-vc-files accept arpa_inet autobuild bind close connect error fdl-1.3 gendocs getaddrinfo getline getpass-gnu gnupload gpl-3.0 inet_ntop inet_pton lgpl-2.1 listen maintainer-makefile minmax perror pmccabe2html progname read-file readline recv select send setsockopt shutdown socket sys_stat version-etc-fsf warnings
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([gl/override])
@@ -53,6 +53,7 @@ gl_MODULES([
   socket
   sys_stat
   version-etc-fsf
+  warnings
 ])
 gl_AVOID([])
 gl_SOURCE_BASE([gl])
diff --git a/gl/m4/gnulib-comp.m4 b/gl/m4/gnulib-comp.m4
index 112fa2ff6d..ddf311cbd0 100644
--- a/gl/m4/gnulib-comp.m4
+++ b/gl/m4/gnulib-comp.m4
@@ -177,6 +177,7 @@ AC_SUBST([LTALLOCA])
   AC_PROG_MKDIR_P
   gl_UNISTD_H
   gl_FUNC_VASNPRINTF
+  gl_WARN_INIT
   gl_WCHAR_H
   gl_XSIZE
   m4_ifval(gl_LIBSOURCES_LIST, [
@@ -464,6 +465,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/sys_time_h.m4
   m4/unistd_h.m4
   m4/vasnprintf.m4
+  m4/warnings.m4
   m4/wchar.m4
   m4/wchar_t.m4
   m4/wint_t.m4
diff --git a/gl/m4/warnings.m4 b/gl/m4/warnings.m4
new file mode 100644
index 0000000000..71a8e56d9d
--- /dev/null
+++ b/gl/m4/warnings.m4
@@ -0,0 +1,51 @@
+# warnings.m4 serial 1
+dnl Copyright (C) 2008 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Simon Josefsson
+
+# gl_WARN_INIT
+# Initializes WARN_CFLAGS variable.
+AC_DEFUN([gl_WARN_INIT],
+[AC_SUBST([WARN_CFLAGS])dnl
+AC_ARG_VAR([WARN_CFLAGS], [C compiler warning flags])
+])
+
+# gl_AS_VAR_IF(VAR, VALUE, [IF-MATCH], [IF-NOT-MATCH])
+# ----------------------------------------------------
+# Provide the functionality of AS_VAR_IF if Autoconf does not have it.
+m4_ifdef([AS_VAR_IF],
+[m4_copy([AS_VAR_IF], [gl_AS_VAR_IF])],
+[m4_define([gl_AS_VAR_IF],
+[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
+
+# gl_AS_VAR_APPEND(VAR, VALUE)
+# ----------------------------
+# Provide the functionality of AS_VAR_APPEND if Autoconf does not have it.
+m4_ifdef([AS_VAR_APPEND],
+[m4_copy([AS_VAR_APPEND], [gl_AS_VAR_APPEND])],
+[m4_define([gl_AS_VAR_APPEND],
+[AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])])
+
+# gl_WARN_ADD(PARAMETER, [VARIABLE = WARN_CFLAGS])
+# ------------------------------------------------
+# Adds parameter to WARN_CFLAGS if the compiler supports it.  For example,
+# gl_WARN_ADD([-Wparentheses]).
+AC_DEFUN([gl_WARN_ADD],
+[AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_$1])dnl
+AC_CACHE_CHECK([whether compiler handles $1], [gl_Warn], [
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="${CFLAGS} $1"
+  AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])],
+                    [AS_VAR_SET([gl_Warn], [yes])],
+		    [AS_VAR_SET([gl_Warn], [no])])
+  CFLAGS="$save_CFLAGS"
+])
+AS_VAR_PUSHDEF([gl_Flags], m4_if([$2], [], [[WARN_CFLAGS]], [[$2]]))dnl
+gl_AS_VAR_IF([gl_Warn], [yes], [gl_AS_VAR_APPEND([gl_Flags], [" $1"])])
+AS_VAR_POPDEF([gl_Flags])dnl
+AS_VAR_POPDEF([gl_Warn])dnl
+m4_ifval([$2], [AS_LITERAL_IF([$2], [AC_SUBST([$2])], [])])dnl
+])