The CeCILL-B license [1] includes the following wording in section 5.3.4: Any Licensee who may distribute a Modified Software hereby expressly agrees to: ... mention, on a freely accessible website describing the Modified Software, at least throughout the distribution term thereof, that it is based on the Software licensed hereunder....
I believe this fails the desert island test, since it requires "a freely accessibly website". Do you agree? Is there a standardized procedure within Debian we could use to switch packages in main from CeCILL-B to CeCILL-C? CeCILL-B says that A Modified Software may be distributed under the CeCILL-C license. In such a case the provisions set forth in Article 5.3.4 shall be optional. I believe even a trivial change to a CeCILL-B-licensed work would allow distribution under CeCILL-C. I do not think CeCILL-C fails the desert island test in the same way, and while CeCILL-C does contain a choice of venue clause, past discussion here has illustrated precedent for Debian accepting licenses with choice of venue clauses into main ([2] et seq.). [1] http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html [2] https://lists.debian.org/msgid-search/22738.30470.420046.188...@chiark.greenend.org.uk