[Freegis-list] Mixing GPL and BSD-style licenced code

[Jan-Oliver Wagner]

Hi John,

Am Mittwoch 07 März 2007 18:32 schrieb John Reid:
> I would very much appreciate some advice.  I would like to make use of a
> database storage manager distributed under a BSD-style licence, however
> I anticipate that it will require extensive modification.  I would like
> these modifications to be distributed under the GPL.  If I included a
> statement like the one below in the modified files, would the GPL
> "stick" to the modified code?
>
> "Modified portions of this software are distributed under the the terms
> of the GPL.  The original source code is distributed under the following
> licence:
> <insert BSD licence>"
>
> Any help or opinions much appreciated.

BSD-3 ("modified") is compatible with GNU GPL. BSD-4 ("old") is not.
3,4 stand for the number of clauses. The advertisement clause in BSD-4
is causing trouble.

If your code is under BSD-3, you are on the save side with your text as above.

A good source for license questions is this page:
http://www.fsf.org/licensing/licenses/index_html

Best

	Jan