# Check for variable-length arrays.
-#serial 2
+# serial 4
# From Paul Eggert
-# Copyright (C) 2001 Free Software Foundation, Inc.
+# Copyright (C) 2001, 2009-2011 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_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
])