Re: [Qemu-devel] [patch] s390-dis.c license

[Johannes Schindelin]

Hi,

On Thu, 17 Jan 2008, M. Warner Losh wrote:

> In message: <address@hidden>
>             Thiemo Seufer <address@hidden> writes:
> : andrzej zaborowski wrote:
> : > On 17/01/2008, Bill C. Riemers <address@hidden> 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).
> 
> No.  It isn't.  *ADDING* the GPL license to a 2-clause BSD licensed file 
> is legal, but removing the BSD stuff is not allowed.  It must be 
> retained, per the BSD license.

Since we are in pea-counter mode:  if you add something _more_ than just a 
license, you _can_ relicense with the GPL.  That means that everybody 
using _your_ modified version as a base _must_ license the result using 
GPL, or not license it at all.

But I agree with Thiemo, it is not nice.

Ciao,
Dscho