http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58248
--- Comment #9 from Jakub Jelinek <jakub at gcc dot gnu.org> --- For testing bugs against trunk it is better to omit both --disable-checking and --enable-checking=release and just use the default. Because otherwise the compiler doesn't perform various verifications and you could see a miscompilation which would otherwise be caught already at compile time.
