[Bug bootstrap/57438] bootstrap fails on x86_64 darwin in stage2 linking cc1

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57438

--- Comment #6 from Jack Howarth <howarth at nitro dot med.uc.edu> ---
I've opened radar://14005298, "linker crash when building FSF gcc with
--disable-checking" with a standalone test case of the failing linkage of cc1.