What claim? I think it's pretty obvious that the GPL derives it's power from copyright. Reasoning: If the GPL does not apply, then you don't have any right to

What claim? I think it's pretty obvious that the GPL derives it's power from copyright. Reasoning: If the GPL does not apply, then you don't have any right to anybody else's code (by the Berne Convention), so it gets its power by granting you more rights than you would have had by default. Make sense?