md5, sha1, sha256, sha512: add gl_SET_CRYPTO_CHECK_DEFAULT

[gnulib.git] / m4 / vararrays.m4

diff --git a/m4/vararrays.m4 b/m4/vararrays.m4
index def6ba4..3d7b567 100644 (file)
--- a/m4/vararrays.m4
+++ b/m4/vararrays.m4
@@ -1,10 +1,10 @@
 # Check for variable-length arrays.
 
-#serial 2
+# serial 4
 
 # From Paul Eggert
 
-# Copyright (C) 2001 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2009-2013 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.
@@ -13,13 +13,13 @@ 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
 ])