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Date: Thu, 17 Jan 2008 22:31:46 +0000
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] [patch] s390-dis.c license
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To: andrzej zaborowski <balrogg@gmail.com>
Cc: qemu-devel@nongnu.org

andrzej zaborowski wrote:
> On 17/01/2008, Bill C. Riemers <docbill@gmail.com> wrote:
> > According to section 9 of the GPL, you would only have to contact
> > contributors for code which specified version 2 of the GPL and not later...
> 
> In order to relicense all of qemu, yes, plus contributors of
> BSD-licensed code, of which there is much more than GPLv2-licensed.

Actually, re-licensing BSD code as GPL is legal (but not nice).

> But there's no reason to relicense qemu. AFAIK there's no problem
> distributing qemu if it contains GPLv3, GPLv2 and BSD code just as
> there was no problem until now with GPLv2 and BSD code. So I'm not
> sure what this change helps.

GPLv2 and GPLv3 have different provisions (e.g. the anti-DRM clause
in GPLv3). Both exclude further restrictions of any sort. This makes
them incompatible.


Thiemo