Issues with Cygwin64 on Windows11

[Ken Brown]

On 8/2/2022 4:19 AM, Corinna Vinschen wrote:
> On Aug  2 13:12, Takashi Yano wrote:
>> Then, what about the v2 patch attached?
> 
> symlink_wsl is doing the right thing, as Ken points out.

Actually, I was suggesting that symlink_wsl was doing the wrong thing in case 
the user used an uppercase drive letter.  WSL doesn't recognize /mnt/C, so I 
don't think symlink_wsl should convert /cygdrive/C to /mnt/C.

> Therefore, the more effort the code makes to be clever, the higher
> chances are that an incorrect conversion takes place.

Agreed.

>>> I'm tempted to go even further and say that Cygwin shouldn't ever
>>> convert the cygdrive prefix to /mnt, on the grounds that users who
>>> care about WSL interoperability can simply use /mnt as their
>>> cygdrive prefix.  But maybe that ship has sailed.
> 
> In hindsight this might have been a step too far.  I was trying to allow
> interoperability and reduce the number of problems based on different
> drive letter handling.  And, well, this is the first time a user has
> a problem due to that :}
> 
> The ship hasn't sailed entirely.  We can revert this decision for 3.4
> and just keep the /mnt conversion in check_reparse_point_target for
> backward compat.  Or we just fix the problem at hand and otherwise
> keep the code as is...?

The latter seems like the safest solution, rather than risk breaking some other 
use case.

Ken