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X-Authentication-Warning:	slinky.cs.nyu.edu: pechtcha owned process doing -bs
Date:	Thu, 11 Dec 2003 09:27:54 -0500 (EST)
From:	Igor Pechtchanski <pechtcha AT cs DOT nyu DOT edu>
Reply-To:	cygwin AT cygwin DOT com
To:	=?iso-8859-1?q?Armo=20Super?= <armosuper AT yahoo DOT co DOT uk>
cc:	cygwin AT cygwin DOT com
Subject:	Re: About Cygwin license
In-Reply-To:	<20031211084451.26141.qmail@web25101.mail.ukl.yahoo.com>
Message-ID:	<Pine.GSO.4.56.0312110919590.14948@slinky.cs.nyu.edu>
References:	<20031211084451 DOT 26141 DOT qmail AT web25101 DOT mail DOT ukl DOT yahoo DOT com>
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On Thu, 11 Dec 2003, Armo Super wrote:

> Hello
>
> What do you think about next situation?
>
> I have made an software, that I'm going to sell.
> My software uses PostgreSql database system, witch is
> distributed under BSD license.
> If I want to get PostgreSql run in Windows
> environment, I need Cygwin.
>
> My software  -(direct use)-> JDBC -(socket)->
> PostgreSql -(direct?)-> Cygwin
>
> And now, is there any resctrictions towards my
> software from GPL, becouse my software is not using
> Cygwin.
>
> Thank you

Disclaimer: <http://cygwin.com/acronyms/#GPL>, first definition.  Having
asked this question on the Cygwin list, you're about to receive loads of
*personal* opinions from *non-lawyers*, so it's in your best interest to
contact a real lawyer.

That aside, and with the understanding that IANAL:
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...

Of course, <http://cygwin.com/acronyms/#YANALATEYHSMBSI>.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
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ZZZzz /,`.-'`'    -.  ;-;;,_		igor AT watson DOT ibm DOT com
     |,4-  ) )-,_. ,\ (  `'-'		Igor Pechtchanski, Ph.D.
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

"I have since come to realize that being between your mentor and his route
to the bathroom is a major career booster."  -- Patrick Naughton

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