[Typo3-dev] Non-GPL licence on a GPL extension

[Martin Kutschker]

Dimitri Tarassenko schrieb:
> On 11/24/05, Martin Kutschker <Martin.Kutschker at n0spam-blackbox.net> wrote:
> 
>>If the user could mix GPL and non-GPL code there would be no point in
>>using the GPL at all.
>
> Wrong. Noone prohibits you from taking GPL-licensed product, modifying
> it as you see fit (including "mixing" it with non-GPL code) and using
> it. You can't distribute it further, though, unless you are able to
> relicense the whole thing under GPL. 
> 
>>IMHO the mentiond ways to "avoid" the GPL-linkage problem are a) no
>>solution as they breach the licence and b) clearly against the spirit of
>>the GPL.
> 
> Spirit schmirit. ;) "clearly against the spirit" is your personal
> judgement, so let's leave it aside. Show me where does it say in GPL
> that I can't build an extension that links WebTrends (a commercially
> licensed web analytics software) or Kayako (PHP-based support center)
> to Typo3 and use it internally on my own servers?

As I see it, you do create something that is distinct from this "mere 
aggragation", you are creating a derivativ work.

The only reason you can use it at home is because nobody knows. With 
nobody watching I can do an amazingly large number of things ;-)

Masi