http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48547
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Comment #17 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-04-11 06:26:43 UTC --- -fpack-struct changes the ABI so you really can't use this option unless you compile everything with it.