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Message-ID: <003f01c2d74d$30642bc0$78d96f83@pomello>
From: "Max Bowsher" <maxb AT ukf DOT net>
To: "Ben Clewett" <B DOT Clewett AT roadrunner DOT uk DOT com>
Cc: <cygwin AT cygwin DOT com>
References: <Pine DOT LNX DOT 4 DOT 44 DOT 0302181120530 DOT 17626-100000 AT localhost DOT localdomain> <3E521E8D DOT 7030302 AT roadrunner DOT uk DOT com>
Subject: Re: Duplicate CygWin
Date: Tue, 18 Feb 2003 12:56:43 -0000
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Ben Clewett wrote:
> (Sorry about incorrect subject on first posting)
>
> Noting:-  It's not a cut down version of CygWin*.DLL I need, but a cut
> down version of the file system, to just a couple of dozen files in
> /bin, /tmp, /usr and /etc, forming a 'mini' UNIX for a specific
> application.
>
> Just been scanning the postings quickly.  My knowlage of the internals
> of CygWin are vauge, but are you saying it's impossible to have two
> sideways compatable versions of CygWin installed, as any detected
> version miss-match (likelly) will drop the code?

There are no such things as sideways-compatible versions of Cygwin.
It would be possible to build an *isolated* version of Cygwin. In this case,
each Cygwin would view the other as just another native Win32 application.

> And there is no way of controling CygWin so that it uses only a
> specific .dll?  (ie, using the PATH variable or something...)
>
> My other need, to have a separate /root directory for each runnin
> Cygwin, I can't see anything on that.
>
> If this is not possible, would it be too hard to put some hack into
> the .dll to, say, read an environment variable for it's root, before
> the usual registry search?

The root directory is NOT the main issue here. It's the shared memory area
that is the central issue.


Max.


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