From 53e969508b6bf0d4b7c26d03c7a88eb9dd9fb7d2 Mon Sep 17 00:00:00 2001 From: Bruno Haible Date: Tue, 4 Oct 2011 01:51:23 +0200 Subject: [PATCH] wmemset: Support for MSVC. * m4/wmemset.m4 (gl_FUNC_WMEMSET): Use a small test program to test whether wmemset() exists. --- ChangeLog | 6 ++++++ m4/wmemset.m4 | 24 +++++++++++++++++++++--- 2 files changed, 27 insertions(+), 3 deletions(-) diff --git a/ChangeLog b/ChangeLog index 55d8c82a25..668add3b6a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,9 @@ +2011-10-03 Bruno Haible + + wmemset: Support for MSVC. + * m4/wmemset.m4 (gl_FUNC_WMEMSET): Use a small test program to test + whether wmemset() exists. + 2011-10-03 Bruno Haible wmemmove: Support for MSVC. diff --git a/m4/wmemset.m4 b/m4/wmemset.m4 index 9674c1242b..9218226e0e 100644 --- a/m4/wmemset.m4 +++ b/m4/wmemset.m4 @@ -1,4 +1,4 @@ -# wmemset.m4 serial 2 +# wmemset.m4 serial 3 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, @@ -7,8 +7,26 @@ dnl with or without modifications, as long as this notice is preserved. AC_DEFUN([gl_FUNC_WMEMSET], [ AC_REQUIRE([gl_WCHAR_H_DEFAULTS]) - AC_CHECK_FUNCS_ONCE([wmemset]) - if test $ac_cv_func_wmemset = no; then + dnl We cannot use AC_CHECK_FUNCS here, because the MSVC 9 header files + dnl provide this function as an inline function definition. + AC_CACHE_CHECK([for wmemset], [gl_cv_func_wmemset], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([[ +/* Tru64 with Desktop Toolkit C has a bug: must be included before + . + BSD/OS 4.0.1 has a bug: , and must be included + before . */ +#include +#include +#include +#include +]], + [[return ! wmemset ((wchar_t *) 0, (wchar_t) ' ', 0);]]) + ], + [gl_cv_func_wmemset=yes], + [gl_cv_func_wmemset=no]) + ]) + if test $gl_cv_func_wmemset = no; then HAVE_WMEMSET=0 fi ]) -- 2.39.5