Re: 2,21,4 released

[Masamichi Hosoda]

>> Do you have an example of a file name that should not work? I now have
>> three versions from GUB (one with MoveFileExW; one without but with
>> wstat; and one without wstat) and all work correctly on a recent
>> Windows 10. Does that mean the issue is gone with a recent update?
> 
> Might it be dependent on which VC++ package you have installed (or
> not) that determines which definition is used by Windows?
> 
> i.e. (from Hosoda-san)
> 
>> `stat ()` in newer UCRTs than msvcrt.dll does not have the problem. 
> 
> I won't pretend to know the internals here but my work laptop has a
> number of different iterations of the older VC++ components installed,
> some of them go back to 2013 (for old internally made tools we still
> use now and again) and they seem to co-exist but I don't know what it
> is LP calls in this case. Some were installed manually and some by the
> various software installers I have run.

If I understand correctly,
lilypond.exe generated by GUB uses msvcrt.dll instead of UCRT.

The recent Visual C++ generated executables use UCRT.
The executables generated by MinGW normally use msvcrt.dll.
The recent MinGW can generate executables that use UCRT
by a special configuration.
However, GUB contains older MinGW that can not be configured as such.