1 # mbrtowc.m4 serial 8 2 dnl Copyright (C) 2001-2002, 2004-2005 Free Software Foundation, Inc. 3 dnl This file is free software; the Free Software Foundation 4 dnl gives unlimited permission to copy and/or distribute it, 5 dnl with or without modifications, as long as this notice is preserved. 6 7 dnl From Paul Eggert 8 9 dnl This file can be removed, and gl_FUNC_MBRTOWC replaced with 10 dnl AC_FUNC_MBRTOWC, when autoconf 2.60 can be assumed everywhere. 11 12 AC_DEFUN([gl_FUNC_MBRTOWC], 13 [ 14 dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60. 15 AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared], 16 gl_cv_func_mbrtowc, 17 [AC_LINK_IFELSE( 18 [AC_LANG_PROGRAM( 19 [[#include <wchar.h>]], 20 [[wchar_t wc; 21 char const s[] = ""; 22 size_t n = 1; 23 mbstate_t state; 24 return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])], 25 gl_cv_func_mbrtowc=yes, 26 gl_cv_func_mbrtowc=no)]) 27 if test $gl_cv_func_mbrtowc = yes; then 28 AC_DEFINE([HAVE_MBRTOWC], 1, 29 [Define to 1 if mbrtowc and mbstate_t are properly declared.]) 30 fi 31 ]) 32
