http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55175
--- Comment #2 from Uros Bizjak <ubizjak at gmail dot com> 2012-11-02 10:05:24 UTC --- Can you please try to build with attached (untested) patch? The patch disables the part that handles exceptions and where rounding mode is set. We need either x87 or SSE control register for this functionality.