Daniel Colascione <dancol@dancol.org> writes:

Can we back out this fix in the meantime?

No.

Yes, we can  We lived with the old behavior for decades. We can live with it a few weeks longer.

These "typeless" declarations can't be all that common.

I see them more or less every day.

Give me a break. No, you don't. Practically nobody uses this obscure and deprecated C feature. If people did, we'd have addressed the problem years ago.