https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99466
--- Comment #5 from Iain Buclaw <ibuclaw at gdcproject dot org> --- (In reply to Iain Sandoe from comment #4) > (In reply to Iain Buclaw from comment #3) > > Oldest compiler version have tried it one is 8.4.0, and there's an ICE there > > as well. > > On Darwin16 : ICE back to 5.5, at least (probably, it never worked - I will > see if can find a 4.x compiler on an older box) > > I don't see any specific reason for this to be "waiting" now. The system installed compiler (4.2.1) errors with "thread-local storage not supported for this target", so yes, I think you're right.