re PR target/45815 (error: '-fsplit-stack' currently only supported on GNU/Linux)

	PR target/45815
	* opts.c (decode_options): Don't test whether the target supports
	split stack if flag_split_stack == 0.

From-SVN: r164695

gcc/ChangeLog

+2010-09-28  Ian Lance Taylor  <iant@google.com>
+
+	PR target/45815
+	* opts.c (decode_options): Don't test whether the target supports
+	split stack if flag_split_stack == 0.
+
 2010-09-28  Jan Hubicka  <jh@suse.cz>
 
 	* builtin-attrs.def (ATTR_LEAF): New attribute.

gcc/opts.c

@@ -1091,7 +1091,7 @@ decode_options (unsigned int argc, const char **argv,
      default value if they choose based on other options.  */
   if (flag_split_stack == -1)
     flag_split_stack = 0;
-  else
+  else if (flag_split_stack)
     {
       if (!targetm.supports_split_stack (true))
 	{