wchar_t.m4 818 Bytes
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# wchar_t.m4 serial 4 (gettext-0.18.2)
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dnl Copyright (C) 2002-2003, 2008-2016 Free Software Foundation, Inc.
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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.
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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],
[
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  AC_CACHE_CHECK([for wchar_t], [gt_cv_c_wchar_t],
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    [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])])
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  if test $gt_cv_c_wchar_t = yes; then
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    AC_DEFINE([HAVE_WCHAR_T], [1], [Define if you have the 'wchar_t' type.])
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  fi
])