http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44959
--- Comment #10 from Hin-Tak Leung <htl10 at users dot sourceforge.net> 2011-08-02 11:08:25 UTC --- > Please try a 4.6.1 tarball and *don't* use relative paths to configure/build > in > a subdir of the source tree. I bootstrap gcc (4.5 to 4.7) on Tru64 UNIX all > the time and never saw this problem. Not a subdir - a parallel directory. source is at /home/htl10/tmp-build/gcc-4.5.1 obj dir is at /home/htl10/tmp-build/gcc-451-dir