[RFC] Let's kill specs, completely rewrite gcc.c

[Laurent Guerby]

I'm not a specialist of these GCC flag handling issues, but I think if
this stuff is to be rewritten, it would be neat to think of
documentation issues as well. A way to automatically generate flag
documentation (or describing them with reasonably readable
configuration language) would ensure minimal consitency between
documentation and implementation for the given flag perimiter.

-- 
Laurent Guerby <guerby@acm.org>