http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49165
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-05-27 12:30:29 UTC --- Created attachment 24369 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24369 gcc46-pr49165.patch Indeed, c_common_truthvalue_conversion needs to be aware of it too.