On Sat, Feb 23, 2013 at 11:12 AM, Mathieu Stumpf
wrote:
Unfortunately, this dictionary is under GPL which is a well known free
license (but a strange choice for a non-software project). So I would
like to know, can I mix up a GPL content with a CC-by-sa page (in cases
where such a page already exist), and more generaly can I add GPL
content into the wiktionary.
No.
If no, could we approach their community and ask them
for a relicensing
under CC-by-sa, so we could add their great work into our wiktionaries.
I also send this message to email I found to contact them[2].
Sure, that would be
great.
On 23/02/13 11:51, Andre Engels wrote:
No. What you stumbled upon is a well-known (at least
to me) problem of
share-alike licences: The only thing they are two-way compatible with
is themselves. Even if one would have a different license with exactly
the same meaning, it would not be possible to move texts from that
license to CC-BY-SA (or GPL or whatever) or vice versa.
There are a few cases where sharealike licenses include provisions for
compatible licenses. Sadly, the license owners don't seem too interested
in advacing in that front.
See for instance the list at
http://creativecommons.org/compatiblelicenses ...which is empty.