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