[Bug other/53313] Add warning levels

[glisse at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53313

--- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> 2012-12-08 17:59:31 UTC ---
Created attachment 28901
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28901
-Weverything

A very basic implementation of -Weverything (I don't really understand that
code, but it compiles and shows many warnings :-)