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Re: Licensing issues with a research project

From: David Kastrup
Subject: Re: Licensing issues with a research project
Date: Wed, 12 Aug 2009 09:21:06 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1.50 (gnu/linux)

John Hasler <> writes:

> Tassilo writes:
>> Well, still the EPL FAQ [1] says, that you cannot combine GPL with EPL
>> code in one module.
> Unless you are the copyright owner, in which case you can make an
> explicit exception.  Remember, these are model licenses, not laws.

Make that "the sole copyright owner".  And "GPL with exception" is not
compatible with "GPL", so the "GPL" in its name is misleading: you don't
get to mix this with other GPL software.

There is a thin ledge of what you can actually do: you can add some
declaration of intent, like "if you use the plugin interface, we don't
consider the resulting whole as more than a agglomeration of
components".  But this is a guarantee just from one side: it mostly will
just work for letting GPL-compatibly licensed extensions (from third
parties) retain their individual more lenient licenses even after

David Kastrup

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