------- Comment #8 from manu at gcc dot gnu dot org 2007-11-16 20:01 ------- > Specification of the proposed new behaviour: > > 1. GCC should ignore unknown -Wno-* options if no other warnings are to > be issued. This is always correct since the only effect of such an > option would be to suppress warnings which might otherwise be > issued. If no warnings are to be issued at all then treating even > an unknown suppression as a no-op is clearly correct.
Ignoring the -Wno-* seems easy. I am not sure about the proper way to buffer the "unknown option" messages until the end, so we can check whether any warnings (or errors) were produced. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28322
