This fixes LTO not honoring -Werror (similar for all other
non-C-family frontends), despite handling -Werror= just fine.
The issue is that the diagnostic context is only adjusted from
the c-family handle-options routine, not from the common
one (which does process -Werror= though).
Bootstrapped and tested on x86_64-unknown-linux-gnu, ok for trunk?
Thanks,
Richard.
2012-01-10 Richard Guenther <rguent...@suse.de>
PR middle-end/51806
c-family/
* c-opts.c (c_common_handle_option): Move -Werror handling
to language independent code.
* opts.c (common_handle_option): Handle -Werror.
Index: gcc/c-family/c-opts.c
===================================================================
--- gcc/c-family/c-opts.c (revision 183054)
+++ gcc/c-family/c-opts.c (working copy)
@@ -449,10 +449,6 @@ c_common_handle_option (size_t scode, co
cpp_opts->warn_endif_labels = value;
break;
- case OPT_Werror:
- global_dc->warning_as_error_requested = value;
- break;
-
case OPT_Wformat:
set_Wformat (value);
break;
Index: gcc/opts.c
===================================================================
--- gcc/opts.c (revision 183054)
+++ gcc/opts.c (working copy)
@@ -1420,6 +1420,10 @@ common_handle_option (struct gcc_options
/* Currently handled in a prescan. */
break;
+ case OPT_Werror:
+ dc->warning_as_error_requested = value;
+ break;
+
case OPT_Werror_:
if (lang_mask == CL_DRIVER)
break;
