fdisk / m4 / wchar_t.m4

# wchar_t.m4 serial 1 (gettext-0.12)
dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
dnl This file is free software, distributed under the terms of the GNU
dnl General Public License.  As a special exception to the GNU General
dnl Public License, this file may be distributed as part of a program
dnl that contains a configuration script generated by Autoconf, under
dnl the same distribution terms as the rest of that program.

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
])
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