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authorBruno Haible <bruno@clisp.org>2011-04-01 23:23:34 +0200
committerBruno Haible <bruno@clisp.org>2011-04-01 23:24:07 +0200
commitb64c50cfe4fca783f23341fffebc7d8f84f58820 (patch)
treee16ce825280dfce20e017be7a098ef8a95eb9862 /m4/wcpcpy.m4
parentdec3475763be252103922a887920012eeb32dc26 (diff)
downloadgnulib-b64c50cfe4fca783f23341fffebc7d8f84f58820.tar.gz
wcpcpy, wcpncpy: Ensure declaration on glibc >= 2.13 systems.
* m4/wcpcpy.m4 (gl_FUNC_WCPCPY): Require AC_USE_SYSTEM_EXTENSIONS. * m4/wcpncpy.m4 (gl_FUNC_WCPNCPY): Likewise. * modules/wcpcpy (Depends-on): Add extensions. * modules/wcpncpy (Depends-on): Likewise. * doc/posix-functions/wcpcpy.texi: Mention missing declaration on glibc systems. * doc/posix-functions/wcpncpy.texi: Likewise. * doc/posix-functions/wcwidth.texi: Likewise.
Diffstat (limited to 'm4/wcpcpy.m4')
-rw-r--r--m4/wcpcpy.m46
1 files changed, 5 insertions, 1 deletions
diff --git a/m4/wcpcpy.m4 b/m4/wcpcpy.m4
index 5ffe1a12e0..b23c0ef9ba 100644
--- a/m4/wcpcpy.m4
+++ b/m4/wcpcpy.m4
@@ -1,4 +1,4 @@
-# wcpcpy.m4 serial 1
+# wcpcpy.m4 serial 2
dnl Copyright (C) 2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -7,6 +7,10 @@ dnl with or without modifications, as long as this notice is preserved.
AC_DEFUN([gl_FUNC_WCPCPY],
[
AC_REQUIRE([gl_WCHAR_H_DEFAULTS])
+
+ dnl Persuade glibc <wchar.h> to declare wcpcpy().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
AC_CHECK_FUNCS_ONCE([wcpcpy])
if test $ac_cv_func_wcpcpy = no; then
HAVE_WCPCPY=0