https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78663
--- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> --- (In reply to Jakub Jelinek from comment #3) > Have you raised this with compiler-rt upstream already? I don't believe that upstream supports the sanitisers for Darwin < 11. However, as seen, they are quite capable of function with a little TLC. I don't have a chance to progress this until at least mid-Feb, if it's more urgent, then (a) please adopt some version of the patch locally, or (b) disable for Darwin < 11.