https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #64 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Why is this a [9 Regression] BTW? If the failure is while compiling darwin-driver.c and caused by system headers using _Atomic even in C++, when gcc/config/darwin-driver.c is identical between 8.x and 9.x (except for copyright year in a comment), I don't understand how gcc 9 could fail to build with XCode 10.2 while gcc 8.3 would succeed.