re PR middle-end/7651 (Define -Wextra strictly in terms of other warning flags)

2006-12-22  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

	PR middle-end/7651
	* c.opt (Wclobbered): New.
	* doc/invoke.texi (Wclobbered): Document it.
	(Wextra): Enabled by -Wextra.
	* c-opts.c (c_common_post_options): Enabled by -Wextra.
	* flow.c (rest_of_handle_life): Replace Wextra with Wclobbered.
	* function.c (setjmp_vars_warning): Only warn for Wclobbered.
	(setjmp_args_warning): Likewise.

testsuite/

	* gcc.dg/attr-returns_twice-1.c: Replace Wextra with Wclobbered.
	* gcc.dg/setjmp-1.c: Add explicit Wclobbered.

From-SVN: r120151

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/flow.c b/gcc/flow.c
index 1da935b..78c2328 100644
--- a/gcc/flow.c
+++ b/gcc/flow.c
@@ -4695,7 +4695,7 @@ rest_of_handle_life (void)
     cleanup_cfg (CLEANUP_EXPENSIVE | CLEANUP_UPDATE_LIFE | CLEANUP_LOG_LINKS
                  | (flag_thread_jumps ? CLEANUP_THREADING : 0));
 
-  if (extra_warnings)
+  if (warn_clobbered)
     {
       setjmp_vars_warning (DECL_INITIAL (current_function_decl));
       setjmp_args_warning ();