http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57653
--- Comment #11 from Allan McRae <allan at archlinux dot org> --- Created attachment 30345 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30345&action=edit log of gdb session Here is the log from my gdb session. Arch builds with no patches, just a could of small sed lines that should not affect this. See our build script (plain bash): https://projects.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packages/gcc Since it is also in Fedora rawhide, hopefully someone there can confirm.