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Date: Tue, 02 May 2000 10:41:55 -0700
From: Charles Hixson <charleshixsn AT earthlink DOT net>
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CC: cygwin AT sourceware DOT cygnus DOT com
Subject: Re: Things you can do with Cygwin
References: <200005030139 DOT UAA00749 AT mail1 DOT sunflower DOT com> <200005021555 DOT LAA20541 AT envy DOT delorie DOT com>
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Actually, I think it's even a bit less restrictive than that.  I believe
that you can sell an application that depends on CygWin, even as a
closed-source proprietary program.  In this case, though, you need to
require that the folk who are going to use it to get their own copy of
CygWin.  IANAL, so I can't judge the validity, but I've heard arguments
saying that YOU can't distribute the GPL'd software that your
closed-proprietary application depends on, but you can tell the user where
to get it.  (This gets way too deep for my hip boots, but, as I said,
IANAL.)

DJ Delorie wrote:

> > I'm still not clear on something.  Can a proprietary,
> > non-open-source software package be ported to run under Cygwin and
> > then sold to customers if, say, a copy of the CD release is
> > purchased and included for every host that the software will run on?
> > Or, would this require the purchase of the Cygwin developer package
>
> It doesn't matter which version of cygwin you have, or where you got
> it from, or how much you paid for it.  If you want to distribute a
> proprietary application that uses Cygwin, you need to purchase a
> proprietary-use license.  If you want to distribute an "open source"
> application that uses Cygwin, you don't need to purchase anything.
>
> Note that I said "distribute", not "write".  You can always write any
> application you want, if you only use it yourself (or within your
> company, if it's a company-written application), because you aren't
> distributing those.  You meet the terms of the GPL if you don't
> distribute your program, regardless of any other license terms it has.
>
> > (I can't find the link for that, at the moment - the Web site seems
> > to have been partially absorbed into Red Hat)?
>
> Send email to cygwin-info AT cygnus DOT com if you are interested in the
> proprietary-use license.  The commercial URL for cygwin is
> http://www.cygnus.com/cygwin/
>
> --
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