X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fvararrays.m4;h=debcbb0703d4598e4de1c8369b9080d5a59571f0;hb=0918b47b06be41b037be7826c5de04d559026d3e;hp=76f9d062fcb3e08bb70b3cdb4dd8923f0bb74b16;hpb=0788693dc0121fb972a745c36ca14aa8fa79cc7a;p=gnulib.git

diff --git a/m4/vararrays.m4 b/m4/vararrays.m4
index 76f9d062f..debcbb070 100644
--- a/m4/vararrays.m4
+++ b/m4/vararrays.m4
@@ -1,37 +1,25 @@
 # Check for variable-length arrays.
 
-#serial 1
+# serial 4
 
 # From Paul Eggert
 
-# Copyright (C) 2001 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
-# 02110-1301, USA.
+# Copyright (C) 2001, 2009-2012 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([AC_C_VARARRAYS],
 [
   AC_CACHE_CHECK([for variable-length arrays],
     ac_cv_c_vararrays,
-    [AC_TRY_COMPILE(
-       [],
-       [static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];],
+    [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+         [],
+         [[static int x; char a[++x]; a[sizeof a - 1] = 0; return a[0];]])],
        ac_cv_c_vararrays=yes,
        ac_cv_c_vararrays=no)])
   if test $ac_cv_c_vararrays = yes; then
-    AC_DEFINE(HAVE_C_VARARRAYS, 1,
+    AC_DEFINE([HAVE_C_VARARRAYS], [1],
       [Define to 1 if C supports variable-length arrays.])
   fi
 ])