http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46086
--- Comment #12 from Anton Shterenlikht <mexas at bristol dot ac.uk> 2010-11-17 15:09:20 UTC --- yes, GMP fails 14 tests: http://seis.bris.ac.uk/~mexas/gmp-5.0.1-regression-test.log I submitted a bug report to gmp-bugs. MPFR passes all tests. Sorry, I should've checked before.