https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119590
--- Comment #9 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> --- The very good news is that Apple has fixed the issue in the 15.5 SDK and later (including the 16.0 SDK). So, this issue was only ever present for the macOS 15.4 SDK.
