GH-133171: Prevent combinations of `--disable-gil` and `--enable-experimental-jit` (for now) by brandtbucher · Pull Request #133179 · python/cpython

Strictly speaking this would be better as target in pythoncore.vcxproj (see the existing _WarnAboutZlib for example), since there's no requirement to use the batch file, and it's very easy to bypass it. (The same goes for the PGO warning above, I don't remember when that was added.)

But it's not a big deal. It's relatively temporary code anyway