http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49525
--- Comment #9 from Marcin Ĺšlusarz <marcin.slusarz at gmail dot com> 2011-06-25 18:46:53 UTC --- Gentoo does not patch gcc severely. See: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-devel/gcc/gcc-4.4.5.ebuild?revision=1.10&view=markup which adds only 2 patches: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-devel/gcc/files/gcc-spec-env.patch?revision=1.6&view=markup http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-devel/gcc/files/4.4.0/gcc-4.4.0-softfloat.patch?revision=1.1&view=markup (arm specific) If that does not convince you, I can compile gcc without these patches. Just say so. Please note that runtime failure occurs in ~30-40% runs.