wchar_t.m4

# wchar_t.m4 serial 3 (gettext-0.18)
dnl Copyright (C) 2002-2003, 2008, 2009 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.
dnl Test whether <stddef.h> has the 'wchar_t' type.
dnl Prerequisite: AC_PROG_CC

AC_DEFUN([gt_TYPE_WCHAR_T],
[
  AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t],
    [AC_TRY_COMPILE([#include <stddef.h>
       wchar_t foo = (wchar_t)'\0';], ,
       [gt_cv_c_wchar_t=yes], [gt_cv_c_wchar_t=no])])
  if test $gt_cv_c_wchar_t = yes; then
    AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.])
  fi
])