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Re: [Xen-devel] Legal concerns: added hashtable implementation

To: "Ewan Mellor" <ewan@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Legal concerns: added hashtable implementation
From: "Christopher Clark" <christopher.clark@xxxxxxxxxxxx>
Date: Sat, 11 Mar 2006 18:13:43 +0000
Cc: Michael Paesold <mpaesold@xxxxxx>, Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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Ewan's right - it's deliberately licensed with the new BSD license
without the advertising clause so as to be GPL compatible. For the
avoidance of doubt I can trivially dual license it but I really doubt
that's necessary.

Christopher


On 3/11/06, Ewan Mellor <ewan@xxxxxxxxxxxxx> wrote:
> On Sat, Mar 11, 2006 at 05:00:01PM +0000, Ewan Mellor wrote:
>
> > On Sat, Mar 11, 2006 at 03:57:22PM +0100, Michael Paesold wrote:
> >
> > > Regarding this changeset:
> > >
> > > Added hashtable implementation, to support the reachability check against
> > > the
> > > store. This code is by Christopher Clark.
> > >
> > > Signed-off-by: Ewan Mellor <ewan@xxxxxxxxxxxxx>
> > >
> > > http://tx.downloads.xensource.com/xen-3.0-testing.hg?cmd=changeset;node=29bbcd88a853f582025f9f00e0ffc03b3112295d
> > >
> > >
> > > The license of the added code is incompatible with the GPL (according to
> > > the FSF). It contains the so-called "advertising clause". See
> > > http://www.gnu.org/licenses/gpl-faq.html#TOCOrigBSD.
> >
> > Damn, sorry.  I should be able to get Chris Clark (the author) to relicence
> > this -- I'm sure his intention was not to be incompatible with the GPL.
>
> Hang on a minute -- that code is licenced under the new BSD licence, not
> the old one.  The advertising clause is the one that says
>
> "All advertising materials mentioning features or use of this software must
> display the following acknowledgement:
>      This product includes software developed by the University of
>      California, Berkeley and its contributors."
>
> which is not contained in Christopher's code.
>
> See http://www.gnu.org/philosophy/bsd.html
>
> Ewan.
>
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