4 clause bsd license

All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the organization.

Copyright , , , , , , , , , The Regents of the University of California. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:. To have a license to a work as a whole, you just need a license to all the protectable elements expressed in that work. This is met in the case of a combined work. By distributing the work to people, you are causing them to receive a BSD license to those protectable elements covered by that license and a GPL license to those protectable elements covered by that license.

There are no other protectable elements, so that is a license to the work as a whole. And it is under the terms of the GPL because you get all the rights the GPL gives you if you comply with only the GPL's restrictions without violating any copyright to any protectable elements in the combined work.

So this is not a relicensing requirement, it's a cause to be licensed requirement. And there's no special "license to the entire work", an entire work is a collection of protectable elements, each of which you need a license to. There's no extra "complete work license" that you need. You can apply clause 2b to any original protectable expression. Clause 2b would, of course, then apply to any work containing that protectable expression unless it was also offered under a different license by its original author or assignee.

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Viewed times. As explained on the GNU GPL site , the 4-clause BSD is incompatible with GPL because of the clause 3 which states: All advertising materials mentioning features or use of this software must display the following acknowledgement: This product includes software developed by the University of California, Berkeley and its contributors.

On the other hand, comments to this answer gives a very different reason for the incompatibility with GPL: The BSD license does not give the permission to re-license and for this reason the final user always gets all permissions from the original author who put the file under the BSD license and who would need to give his explicit OK.

See also the 2-clause BSD License. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.