http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52961
--- Comment #8 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-10-09 17:06:25 UTC --- The problem of default warnings without options is that default warnings are often the most useful and, hence, the ones that people would like to make an error with -Werror=. Unfortunately, we don't have a -Werror=default to enable all of them.
