http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49373
--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> 2011-06-11 17:51:52 UTC --- The first problem should be solved by: * lto-streamer-out.c (produce_symtab): Stream out the newly represented aliases. The builtins failure is probably yet another manifestation of the fact that we don't stream builtin decls correctly. I will check... Honza