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Date:	Thu, 11 Dec 2003 10:11:51 -0500 (EST)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	cygwin AT cygwin DOT com
cc:	"Hughes, Bill" <Bill DOT Hughes AT cox DOT co DOT uk>
Subject:	RE: About Cygwin license
In-Reply-To:	<Pine.GSO.4.56.0312111002360.14948@slinky.cs.nyu.edu>
Message-ID:	<Pine.GSO.4.56.0312111011220.14948@slinky.cs.nyu.edu>
References:	<5D60432AF619D81183C80002A5419F5D07F532 AT nnhmsw1 DOT cox DOT co DOT uk>
	<Pine DOT GSO DOT 4 DOT 56 DOT 0312111002360 DOT 14948 AT slinky DOT cs DOT nyu DOT edu>
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Larry's right.  Die, thread, die!
	Igor

On Thu, 11 Dec 2003, Igor Pechtchanski wrote:

> On Thu, 11 Dec 2003, Hughes, Bill wrote:
>
> > Sent: 11 December 2003 14:28 From: Igor Pechtchanski
> > > Common sense dictates that socket connections cannot be thought of as
> > > "linking" (which is what the GPL covers).  After all, connecting with a
> > > proprietary ssh client to a GPL'd ssh daemon on Linux doesn't make the
> > > client GPL'd (AFAIK).  Now, if your program is actually linked to some of
> > > PostgreSQL DLLs, that's a whole different story...
> >
> > Isn't PostgreSQL under a BSD license anyway so that wouldn't be a worry
> > either...
> > unless this is a Cygwin dll for PostgreSQL?
>
> With the disclaimer (which you snipped) that IANAL, and any opinion you'll
> get is a personal one:
> The GPL is viral, i.e., anything linked (even dynamically) to a GPL'd
> library is itself GPL'd, *except* when the software so linked is
> distributed under an open-source license.  Transitive linking is still
> linking, AFAIK.  So, linking with cygwin1.dll doesn't make PostgreSQL
> GPL'd, as BSD is an accepted open-source license.  But any proprietary
> software linked to PostgreSQL (and, transitively, to cygwin1.dll) *will*,
> IMO, become GPL'd.  Again, YANALATEYHSMBSI.  Please consult a lawyer.
>         Igor

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