Apache 2 License vs OSI definition

Johannes Buchner buchner.johannes at gmx.at
Fri Jul 17 11:02:43 UTC 2009

Thank you very much for clarifying!

On Fri, 17 Jul 2009 06:52:10 -0400
John Cowan <cowan at ccil.org> wrote:

> Johannes Buchner scripsit:
> > Ah. So a developer receiving my product does not have to give away
> > the source if he only redistributes. But if he makes modifications,
> > and releases binaries to a user, where does it state that this user
> > has the right to get the sources?
> It does not, and the user has no such rights.  But it is not a
> requirement of the OSD that the user have access to the source of all
> derivative works.
> > Is this covered by (2) in the AL: "Subject to the terms and
> > conditions of this License, each Contributor hereby grants to You a
> > perpetual, worldwide, non-exclusive, no-charge, royalty-free,
> > irrevocable copyright license to reproduce, prepare Derivative
> > Works of, publicly display, publicly perform, sublicense, and
> > distribute the Work and such Derivative Works in Source or Object
> > form. "
> That clause gives you or anyone the right to make modified versions.
> It does not compel you or anyone to distribute the source to these
> modified versions.
> > I basically don't want that someone can take my software, add some
> > functionality and distribute/sell it binary-only without ever
> > disclosing the modifications. Perhaps the Apache 2 License is not
> > right for me? 
> Just so.  You want the GPL, which forbids such conduct.
> > I was considering dual-licensing with GPLv3 to allow more mixing
> > with other software.
> That will not achieve your purpose.  You should license under the GPL
> only.
> -- 
> De plichten van een docent zijn divers,         John Cowan
> die van het gehoor ook.                         cowan at ccil.org
>       --Edsger Dijkstra
> http://www.ccil.org/~cowan

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