1 # wchar_t.m4 serial 4 (gettext-0.18.2)
2 dnl Copyright (C) 2002-2003, 2008-2017 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
8 dnl Test whether <stddef.h> has the 'wchar_t' type.
9 dnl Prerequisite: AC_PROG_CC
11 AC_DEFUN([gt_TYPE_WCHAR_T],
13 AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t],
17 wchar_t foo = (wchar_t)'\0';]],
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.])