[copyleft-next] dual licensing nullification problem pointed out by Jason Self

Mike Linksvayer ml at gondwanaland.com
Thu Oct 30 03:24:17 UTC 2014


https://identi.ca/jxself/comment/ViGIl7lARfuc83wC6-qqkw reply to
https://identi.ca/mlinksva/note/lizdsdoNSUe_6TXGyr4nRw notes that
proprietary nullification would not kick in for a non-copyleft license,
implying (if I understand correctly) that a permissive license could be
offered in private, allowing incorporation into proprietary work, thus
still circumventing copyleft through dual licensing.

The obvious way to close this loophole is to make the nullification kick
in upon offer of any non-copyleft license of equivalent strength.

As the copyleft-next draft now has a network services clause, the only
equivalent strength other license would be AGPL. Also changed derivative
works section accordingly.

I've no idea whether this commit is the correct way to address the
problem, if it is deemed a problem.

You can read the above again at
https://gitorious.org/copyleft-next/copyleft-next/merge_requests/34

Mike


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