On 09.09.2014 20:58, Andrea Pescetti wrote: > Guy Waterval wrote: >> Not possible for a developer to use a double licence ? > > Sure it is possible. And it is also possible for the copyright holder to > add the Apache 2 license to work previously released under other, > usually more restrictive, licenses. > >> Or maybe the double licence is only possible with a couple of two >> copyleft >> licences or not copyleft but not with a mix, as a couple with a copyleft >> licence and another non copyleft ? > > This is totally wrong. I'm sure it's a honest question in your case, but > a lot of people use this kind of "fake questions" to deliberately spread > uncertainty about licenses. So, in short, these second group of > questions is nonsense. > >> Other question : if an original work is produced under a double licence, >> which is the licence of a derivate work : obligatory the initial double >> licence of the original work or one or the other of the original work ? > > For the meaning we give to "double", this means "take this code under > either license A or license B, whichever you prefer". If one of the > option is the Apache License version 2, we can take the code and improve > it under the Apache License version 2. Then other projects that chose > more restrictive licensing terms can obviously use our improved code. > > There's no need that I always state that I'm not a lawyer and this is > not legal advice, right? >
I'm a lawyer (Rechtsanwalt - Bundesrepublik Deutschland) and this is not a legal advice, but Andrea is right. Regards Michael
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