http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49469
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-02-07 03:35:22 UTC --- /Users/dxy/VCS/GIT/gcc/zlib/configure: line 3225: /tmp/gcc-build/i386/./prev-gcc/xgcc: No such file or directory > --enable-multilib \ Don't use that option, zlib is not very friendly to it. And the rest of the build machinary knows if multilib is enabled or now.