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guile/m4/wchar_t.m4
Ludovic Courtès 49114fd43d Update Gnulib; add new modules.
This updates Gnulib to v0.0-4889-ge375fe3.

* m4/gnulib-cache.m4: Add `accept', `bind', `close', `connect',
  `getpeername', `getsockname', `getsockopt', `listen', `malloc',
  `malloca', `recv', `recvfrom', `send', `sendto', `setsockopt',
  `shutdown', `socket', and `sockets', requested by
  Jan Nieuwenhuizen <janneke-list@xs4all.nl> for cross-MinGW32 builds.
  Add `trunc', requested by Mark H Weaver <mhw@netris.org>.
2011-02-14 11:36:25 +01:00

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# wchar_t.m4 serial 4 (gettext-0.18.2)
dnl Copyright (C) 2002-2003, 2008-2011 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
])