On Thu, 3 Sep 2009 15:51:31 +0200 Carsten Wolff wrote: [...] > On Thursday 03 September 2009, Josselin Mouette wrote: > > It is very different since this additional section makes it a copyleft > > license, which makes it incompatible with most other copyleft licenses. > > I see. It seems I completely misread that section. I see now, why it's not > just explanatory, but actually makes it a copyleft license. Well, not completely a copyleft license, IMHO. It says: | If you choose to provide your enhancements, or if you choose to | otherwise publish or distribute your enhancements, [in source form and without doing something special], | then you thereby grant Internet2 and its contributors a ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | non-exclusive, royalty-free, perpetual license to [do many things, including sub-license]. Hence, it does _not_ require you to grant *any recipient* the *same* rights you received. It says that, when you distribute enhanced source (without doing a special action), you will automatically grant the *original authors* and contributors *more* rights than those you received from them. This is not a classical (strong or weak) copyleft mechanism, AFAICT. This is something different. I am not even much persuaded that it meets the DFSG (i.e.: that it is suitable for Debian "main"). All this reminds me of the old discussions about the QPL: http://lists.debian.org/debian-legal/2004/08/msg00047.html > > > The “Internet2 and its contributors” choice of words is poor, but > > otherwise it sounds like a reasonable and free copyleft license. > > This means, a program under this license is fit for the "main" section of > Debian? I personally disagree: as I said above, I am not sure the license meets the DFSG, and I don't feel it can be described as a "copyleft" license. I hope my personal opinion is useful as a contribution to the discussion. -- New location for my website! Update your bookmarks! http://www.inventati.org/frx ..................................................... Francesco Poli . GnuPG key fpr == C979 F34B 27CE 5CD8 DC12 31B5 78F4 279B DD6D FCF4
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