This is not legal advice. | A | B | C | D | ----------------------------+---+---+---+---+ Apache License 2.0 | N | Y | N | Y | Modified BSD | Y | N | N | Y | GNU GPL 2 | ? | ? | N | Y | GNU LGPL 2.1 | ? | ? | N | N | MIT | Y | N | N | Y | Mozilla Public License 1.1 | N | Y | N | N | CDDL 1.0 | Y | Y | N | Y | Common Public License 1.0 | Y | Y | N | N | ----------------------------+---+---+---+---+ Adaptive Public License 1.0 | N | Y | N | N | The Artistic License | Y | Y | Y | Y | (but much maligned) Artistic License 2.0 | Y | N | Y | ? | Open Software License 3.0 | Y | Y | Y | Y | (but not DSFG compatible?) Q Public License 1.0 | Y | Y | N | Y | zlib/libpng License | Y | N | ? | Y | ----------------------------+---+---+---+---+