STINNER Victor <vstin...@python.org> added the comment:
> The headers Python.h and also the ones pulled in by it were actually from > Python 3.8 release, which unconditionally defines the macro as a call to > Py_FatalError. Using __builtin_unreachable() is a recent change (bpo-38249), Python 3.9.0: * commit eebaa9bfc593d5a46b293c1abd929fbfbfd28199 Fix for old GCC (bpo-41875): * master: commit 24ba3b0df5e5f2f237d7b23b4017ba12f16320ae * 3.9.1: commit cca896e13b230a934fdb709b7f10c5451ffc25ba I prefer to not backport this feature, since, as you wrote, it's tricky to make sure that it's available on the C compiler. I close the issue since Py_UNREACHABLE() works as expected on Python 3.9 and newer. ---------- stage: resolved -> _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue43615> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
