http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55790
--- Comment #2 from Joel Sherrill <joel at gcc dot gnu.org> 2013-01-07 17:07:05 UTC --- The gcc dependencies are reminding me of the pre-egcs days. I hope we don't return there. :( Anyway.. These are the sources I have linked into today's gcc-svn. This is what I had been using over the holidays to test using Centos 6.x. But this isn't working on a Fedora host. $ ls -l | grep " -> " lrwxrwxrwx 1 joel rtems 33 Jan 7 10:03 cloog -> /users/joel/test-gcc/cloog-0.17.0 lrwxrwxrwx 1 joel rtems 29 Dec 22 10:15 gmp -> /home/joel/test-gcc/gmp-5.1.0 lrwxrwxrwx 1 joel rtems 28 Dec 22 10:16 isl -> /home/joel/test-gcc/isl-0.10 lrwxrwxrwx 1 joel rtems 44 Oct 28 2011 libgloss -> /users/joel/test-gcc/newlib-cvs/src/libgloss lrwxrwxrwx 1 joel rtems 29 Dec 22 10:14 mpc -> /home/joel/test-gcc/mpc-1.0.1 lrwxrwxrwx 1 joel rtems 30 Dec 22 10:13 mpfr -> /home/joel/test-gcc/mpfr-3.1.1 lrwxrwxrwx 1 joel rtems 42 Oct 28 2011 newlib -> /users/joel/test-gcc/newlib-cvs/src/newlib Do you have to use any special configure option when using these sources inside the gcc tree?