https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90835
--- Comment #24 from ro at CeBiTec dot Uni-Bielefeld.DE <ro at CeBiTec dot Uni-Bielefeld.DE> --- > --- Comment #23 from Iain Sandoe <iains at gcc dot gnu.org> --- > unpatched GCC master, gcc-9.x, gcc-8.x and gcc-7.5 work for me with any SDK >= > Xcode commandline tools 11.3b. I've recently tried both building gcc 8.3.0 (build only) and master (full bootstrap and test) on macOS 10.14.6 and 10.15.3, each with Xcode 11.3.1. Both worked *provided the build and target compilers were configured with the approriate --with-sysroot to account for the lack of /usr/include and startup objects in /usr/lib*. > If there's no additional information I propose we close this PR after another > week. I guess that's fine. Thanks. Rainer