http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55790
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2013-01-08 Ever Confirmed|0 |1 --- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> 2013-01-08 09:58:26 UTC --- ASM_BYTE is supposed to be included from config/i386/att.h via the generated file tm.h. You should look at preprocessed source with -dD to see why it is missing for you.