1# wchar_t.m4 serial 4 (gettext-0.18.2) 2dnl Copyright (C) 2002-2003, 2008-2012 Free Software Foundation, Inc. 3dnl This file is free software; the Free Software Foundation 4dnl gives unlimited permission to copy and/or distribute it, 5dnl with or without modifications, as long as this notice is preserved. 6 7dnl From Bruno Haible. 8dnl Test whether <stddef.h> has the 'wchar_t' type. 9dnl Prerequisite: AC_PROG_CC 10 11AC_DEFUN([gt_TYPE_WCHAR_T], 12[ 13 AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t], 14 [AC_COMPILE_IFELSE( 15 [AC_LANG_PROGRAM( 16 [[#include <stddef.h> 17 wchar_t foo = (wchar_t)'\0';]], 18 [[]])], 19 [gt_cv_c_wchar_t=yes], 20 [gt_cv_c_wchar_t=no])]) 21 if test $gt_cv_c_wchar_t = yes; then 22 AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.]) 23 fi 24]) 25