https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100847
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |aarch64-darwin --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- sounds like an install issue to me - you're picking up Xcode libc++ headers