Home | History | Annotate | Download | only in config
      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