Copyright law and distribution terms for public versions or derivatives
posted 3 years ago
Can a person obtain the BSD license code and distribute it under GPL?
I have noticed that SSLeay that traces its roots through the OpenSSL lineage, has had the following addendum to what otherwise looks similar to the standard 4-clause BSD license:
* The license and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution license
* [including the GNU Public Licence.]
Is that NOOP?
Why is GNU Public Licence specifically mentioned; isn't GPL already incompatible with the 4-clause BSD licence that precedes the above comment, due to the advertisement clause?