http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52922
--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-04-10 09:11:03 UTC --- No, in general you can't use GCC built for one target on a different target. What I do is just build the same version of GCC with the exact same configuration on each OS I need to target.