File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / libiconv / srcm4 / wchar_t.m4
Revision 1.1.1.3 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Wed Mar 17 13:38:46 2021 UTC (3 years, 9 months ago) by misho
Branches: libiconv, MAIN
CVS tags: v1_16p0, HEAD
libiconv 1.16

# wchar_t.m4 serial 4 (gettext-0.18.2)
dnl Copyright (C) 2002-2003, 2008-2019 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
])

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