http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51999
--- Comment #2 from David Edelsohn <dje at gcc dot gnu.org> 2012-01-26 14:58:09 UTC --- You seem to have applied a lot of random changes to your system and then reported a GCC bootstrap bug. Do not use GNU Binutils on AIX 6.1.
