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Date: Thu, 26 Aug 2004 11:20:08 -0400 (EDT)
From: Igor Pechtchanski <pechtcha@cs.nyu.edu>
Reply-To: cygwin@cygwin.com
To: Giulio Ardoino <giuliastro@tin.it>
cc: cygwin@cygwin.com
Subject: Re: License
In-Reply-To: <20040826165355.70E5.GIULIASTRO@tin.it>
Message-ID: <Pine.GSO.4.61.0408261106500.6014@slinky.cs.nyu.edu>
References: <20040826162311.70DF.GIULIASTRO@tin.it> <20040826145219.GF27978@cygbert.vinschen.de> <20040826165355.70E5.GIULIASTRO@tin.it>
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On Thu, 26 Aug 2004, Giulio Ardoino wrote:

> Corinna Vinschen wrote:
>
> > If you distribute a Cygwin DLL binary, you must also provide the
> > sources of the DLL.  It's not enough to point to the Cygwin web page.
> > For further details, see http://cygwin.com/licensing.html
>
> Thanks a lot Corinna.
> This means I'm allowed to distribute cygwin dll as long as I distribute
> it with sources, as I understand.
> Let's say I'm writing a commercial program that uses GNU zip under
> windows (and therefore must be distributed with cygwin dll), am I
> allowed to do this as long as I include cygwin and zip sources?

IANAL, but the GPL does talk about linking as separate from invoking the
programs using fork/exec.  In particular, the following two sections from
the GPL FAQ might be relevant:
<http://www.gnu.org/licenses/gpl-faq.html#GPLAndPlugins> and
<http://www.gnu.org/licenses/gpl-faq.html#GPLPluginsInNF>.
As always, please consult a real lawyer when there's any doubt as to the
interpretation of the terms of the license.
	Igor
-- 
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