> The first job of such a volunteer, if and when he or she steps up,
> will be to solve this and a couple of other problems which were
> reported lately for this build.  Until now, the attempts to understand
> why close_stream fails for the standard streams in the UCRT build were
> unsuccessful, unfortunately, even though these attempts included the
> study of the UCRT sources that are available on the Internet.

> I don't think _fcloseall is what we need: according to the MS
> documentation, it closes all the streams _except_ the standard ones,
> so it's the exact opposite of what we need.

I understand.

Thank you for your patience, Eli. Maybe I'll do some research on UCRT port for
Emacs one day.

Regards.