http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55211
--- Comment #12 from davem at gcc dot gnu.org 2012-11-05 21:50:38 UTC --- That configuration doesn't make any sense. It's going to pass -m64 down into the libgcc2 build, then the internal --with-cpu=v8 setting is going to override all that. The correct thing to do is to execute configure in the correct environment, or pass an explicit build triplet.