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Date:	Sun, 12 Mar 2017 13:12:09 -0700
From:	L A Walsh <cygwin AT tlinx DOT org>
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To:	cygwin AT cygwin DOT com
Subject:	Re: Junctions != Symlinks; Treat Junctions as MS-FS mounts; MS-symlinks are symlinks
References:	<58C31431 DOT 1020408 AT tlinx DOT org> <5110401945 DOT 20170311210154 AT yandex DOT ru> <58C48EF9 DOT 4050106 AT tlinx DOT org> <20170312111518 DOT GD3340 AT calimero DOT vinschen DOT de>
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Corinna Vinschen wrote:
> On Mar 11 15:57, L A Walsh wrote:
>   
>> 	I'm, talking parallel features and parallel problems.
>> Installing products on Linux or cygwin may check for and
>> complain about symlinks leading to their installation directory.
>>
>> 	The cure in both is to use bind-type mounts and
>> remove any symlink usage in their base path.
>>     
>
> As I wrote (multiple times now?), we can handle dir junctions as
> symlinks or as normal directories.  We can not handle them as mounts or
> bind mounts, unless you do this explicaitly in /etc/fstab or
> /etc/fstab.d/$USER
>   
To a user program, a mountvol looks like a normal directory.
When I talk about a 'bind' mount, I refer to the linux-facility
for mounting an arbitrary directory on a volume on another
directory on linux.  On windows, one uses JUNCTIONs to achive
a similar effect.  In both cases, they look like normal directories.


That said, why not make treating it as a normal
directory dependent on "winsoftlinks:mount" in
the 'CYGWIN' var, with 'winsoftlinks:symlink being
the default (doesn't have to be present in CYGWIN var
to get current behavior). Note, I'm using 'softlink'
as MS uses when talking about JUNCTIONS -- with the new
Vista feature being SYMLINKs.

Thinking about it, when one wants to do backups, the
env-"switch" gives the option of which behavior one gets
(if that's possible/not too hard) -- either the 'normal dir'
look or the current, symlink look.




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