http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48400
--- Comment #14 from Iain Sandoe <iains at gcc dot gnu.org> 2011-04-02 15:07:22 UTC --- Created attachment 23854 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23854 171816 + patch - not working removed i686-apple-darwin9/* ... bootstrap fails... deleted _clz* -- then bootstrapped with CFLAGS_FOR_TARGET="-O2 -g -save-temps -fverbose-asm -dA" .. there is a difference, although I can't say whether the fault lies with ld64 or gcc ...