http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53930
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-07-11 19:16:24 UTC --- You are violating C++'s one definition rule. That is there is only one definition of the struct if they differ in implementation, the behavior is undefined.