https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123976
--- Comment #119 from Iain Sandoe <iains at gcc dot gnu.org> --- additional: To bootstrap, i used a GCC-10.5 built using Apple gcc-4.2.1 and all the tools are stock Xcode-3.1.4 (so: as, ld, ar, libtool, dsymutil etc). (I am sure that newer tools could have some advantages - but they are not needed to make things work)... It's always best to change one thing at a time with something as incredibly complex as a toolchain.
