http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54324
--- Comment #3 from Aldy Hernandez <aldyh at gcc dot gnu.org> 2012-12-10 19:40:17 UTC --- I was successfully able to bootstrap trunk with a freshly built 3.4.0 compiler: houston:/build/trunk$ gcc -v Reading specs from /home/build/old-gccs/3.4.0/install/bin/../lib/gcc/x86_64-unknown-linux-gnu/3.4.0/specs Configured with: /source/old-gccs/gcc-3.4.0/configure --enable-languages=c,c++ Thread model: posix gcc version 3.4.0 This was on an x86-64 Linux running Fedora release 17. The original bug report in the mailing list post was against an x86-32 Linux (Redhat 8.0) system, which is different, but perhaps this is something else (not the compiler)?? I will investigate on a Red Hat 8.0 system.