# wchar_t.m4 serial 4 (gettext-0.18.2)

dnl Copyright (C) 2002-2003, 2008-2020 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_COMPILE_IFELSE(

       [AC_LANG_PROGRAM(

          [[#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

])