Redistributions must retain this list of conditions

John Cowan jcowan at
Mon Nov 12 20:07:22 UTC 2001

Paul Guyot wrote:

>> Redistributions of source code must retain the above copyright notice, 
>> this list of conditions and the following disclaimer.
> means that I have to retain the list of conditions from the BSD license 
> or the list of conditions from another license (say GPL) if my code is 
> licensed under this other license?

No, no.  The BSD license requires you to keep the BSD metadata
(copyright and disclaimer) with the BSD code.  The GPL requires that
in your derivative work, the non-GPL code cannot impose any conditions
other than those which the GPL imposes.  The BSD requirement
"keep the metadata intact" is the same as the existing GPL
clause 1 requirement "keep the metadata intact", so there is
no conflict.

> It's not what I meant. You seem to say that I can delete the list of 
> conditions of the BSD license if I release the software under another 
> license saying that the copyright notice, the warranty disclaimer and 
> the license should be kept.

No.  The BSD license requires that BSD code have the BSD license
associated with it.  The only question is, does that conflict with
the GPL's requirements on non-GPL code: answer, "no".

Not to perambulate             || John Cowan <jcowan at>
    the corridors               ||
during the hours of repose     ||
    in the boots of ascension.  \\ Sign in Austrian ski-resort hotel

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