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# mbrtowc.m4 serial 8
dnl Copyright (C) 2001-2002, 2004-2005 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 Paul Eggert
dnl This file can be removed, and gl_FUNC_MBRTOWC replaced with
dnl AC_FUNC_MBRTOWC, when autoconf 2.60 can be assumed everywhere.
AC_DEFUN([gl_FUNC_MBRTOWC],
[
dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
gl_cv_func_mbrtowc,
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <wchar.h>]],
[[wchar_t wc;
char const s[] = "";
size_t n = 1;
mbstate_t state;
return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
gl_cv_func_mbrtowc=yes,
gl_cv_func_mbrtowc=no)])
if test $gl_cv_func_mbrtowc = yes; then
AC_DEFINE([HAVE_MBRTOWC], 1,
[Define to 1 if mbrtowc and mbstate_t are properly declared.])
fi
])
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