Langhooks fix and cleanup

[Richard Henderson]

On Sat, Oct 20, 2001 at 12:07:32AM +0100, Neil Booth wrote:
> 	* 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.
> 	* ojbc/objc-act.c: Include langhooks.h.
> 	(lang_hooks): Initialize from macros.

Ok.


r~