* langhooks.c (lang_hook_default_do_nothing,

	lang_hook_default_decode_option): New defaults.
	* langhooks.h: Make hooks unconditional and non-NULL.
	* toplev.c (compile_file, toplev_main): Update.
	* toplev.h: Update comments.
	* objc/objc-act.c (lang_hooks): Update to new paradigm.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@46396 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 14 insertions, 0 deletions

diff --git a/gcc/langhooks.c b/gcc/langhooks.c
index ea0df904848..aa6422a325c 100644
--- a/gcc/langhooks.c
+++ b/gcc/langhooks.c
@@ -29,6 +29,20 @@ Boston, MA 02111-1307, USA.  */
 #include "integrate.h"
 #include "langhooks.h"
 
+/* Do nothing; in many cases the default hook.  */
+void
+lang_hook_default_do_nothing ()
+{
+}
+
+/* Do nothing; the default hook to decode an option.  */
+int
+lang_hook_default_decode_option (argc, argv)
+     int argc ATTRIBUTE_UNUSED;
+     char **argv ATTRIBUTE_UNUSED;
+{
+  return 0;
+}
 
 /* lang_hooks.tree_inlining.walk_subtrees is called by walk_tree()
    after handling common cases, but before walking code-specific