https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63850
--- Comment #5 from Dmitry Vyukov <dvyukov at google dot com> --- I suspect that configure and Makefiles are gcc-specific, that is needs to be submitted to gcc diredctly. And for tsan_rtl.h we have a change in flight that does essentially the same (for mips64 support): http://reviews.llvm.org/D6291 I've asked the author to disable HACKY_CALL for everything except __x86_64__. So it seems it can be a pure gcc change.
