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Date: Fri, 20 Jun 2003 12:46:31 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: cygwin license with windows apps?
Message-ID: <20030620164631.GB2447@redhat.com>
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References: <3E2D8043936AD611AF7D00508B5E9F4B45E4BE AT server3 DOT mobilecom DOT com> <uadccvhaj DOT fsf AT gnu DOT org>
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On Fri, Jun 20, 2003 at 12:35:00PM -0400, Sam Steingold wrote:
>> * In message <3E2D8043936AD611AF7D00508B5E9F4B45E4BE AT server3 DOT mobilecom DOT com>
>> * On the subject of "RE: cygwin license with windows apps?"
>> * Sent on Fri, 20 Jun 2003 12:18:41 -0400
>> * Honorable Cary Lewis <clewis AT mobilecom DOT com> writes:
>>
>> Why is it that linking to the cygwin.dll makes a program covered by GPL?
>
>because GPL says so:
>
>"This General Public License does not permit incorporating your program
>into proprietary programs.  If your program is a subroutine library, you
>may consider it more useful to permit linking proprietary applications
>with the library.  If this is what you want to do, use the GNU Library
>General Public License instead of this License."
>
>> On Linux systems, does linking to the open source 'C' libraries,
>> etc. cause a program to be covered by the GPL?
>
>GNU GPL is _NOT_ GNU LGPL.
>GNU libc (glibc) is under LGPL, not GPL.
>cygwin is undef GPL, not LGPL.
>
>> I have trouble believing that there are systems out there that use
>> cygwin in a commercial fashion that have not purchased the breakout
>> license.
>
>"commercial fashion" != "proprietary fashion".
>
>those who _distribute_ _proprietary_ code linked with cygwin without
>purchasing the breakout license are breaking the law.
>
>IANAL.

It's nice to see that some people get the concept at least.

Thanks Sam and Elfyn.

cgf

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