1 # wchar_t.m4 serial 1 (gettext-0.12) 2 dnl Copyright (C) 2002-2003 Free Software Foundation, Inc. 3 dnl This file is free software, distributed under the terms of the GNU 4 dnl General Public License. As a special exception to the GNU General 5 dnl Public License, this file may be distributed as part of a program 6 dnl that contains a configuration script generated by Autoconf, under 7 dnl the same distribution terms as the rest of that program. 8 9 dnl From Bruno Haible. 10 dnl Test whether <stddef.h> has the 'wchar_t' type. 11 dnl Prerequisite: AC_PROG_CC 12 13 AC_DEFUN([gt_TYPE_WCHAR_T], 14 [ 15 AC_CACHE_CHECK([for wchar_t], gt_cv_c_wchar_t, 16 [AC_TRY_COMPILE([#include <stddef.h> 17 wchar_t foo = (wchar_t)'\0';], , 18 gt_cv_c_wchar_t=yes, gt_cv_c_wchar_t=no)]) 19 if test $gt_cv_c_wchar_t = yes; then 20 AC_DEFINE(HAVE_WCHAR_T, 1, [Define if you have the 'wchar_t' type.]) 21 fi 22 ]) 23