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Re: [jfw] LGPL License Change Approved
> I'm not a lawyer, but does the entry point has any relevance on legal terms ? Let's assume the framework is under LPGL and the CMS under GPL. Correct me, but if i would build an extension which is based on the framework and does not inherit from any CMS class, then i could release that extension under a non-GPL licence.
Legally speaking, IMO, it depends which jurisdiction you are in as the definition of a 'derivative work' differs greatly. The position being taken (not sure I agree with it) by the SFLC is that as your code will be compiled at the same time as GPL code you'll be infected by the GPL. I'm not convinced by the argument, and I think it'd be a really sticky one to fight, but based on some reading it does look like that position is what's needed in the US (where the idea of a derivative work under copyright means it must be substantially similar).
I doubt you'd hear that argument used in the UK/EU as our definition of a derivative work would include subclassing.