# 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 ])