http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59009
--- Comment #19 from Peter Bergner <bergner at gcc dot gnu.org> --- Someone on my team reported that our internal bootstrap tester is still failing. It is failing due to the linux/mroute6.h header file not existing. Our builds are occurring on SLES10 and RHEL5 and that kernel header didn't exist yet when SLES10/RHEL5 were released. I'm going to fire off my own build on them and see if I can work around them commenting more code out.