Cygwin doesn't support IO_REPARSE_TAG_APPEXECLINK

[Martin Rauscher]

> Not clear why you expect that a Windows specific tag as
> IO_REPARSE_TAG_APPEXECLINK should be supported on a Posix platform ?
>
> Moreover all the documentation from MS seems
>
> https://docs.microsoft.com/en-us/openspecs/windows_protocols/ms-fscc/c8e77b37-3909-4fe6-a4ea-2b9d423b1ee4
>
> that seems a bit short to help third party in properly using it.
>
> Regards
> Marco


For some context, the reason why this is getting some attention is
(probably) this:
Windows is getting its own Package Manager and it's based on UWP and
thus this issue appears for everybody trying out WinGet + Cygwin (or
Git for Windows etc).
Issue on their side: https://github.com/microsoft/winget-cli/issues/228

This is truly a pretty weird feature of Windows/NTFS where there was
not much reason to support it before, but with WinGet this will become
a much requested feature on no time.

Best Regards,
Martin