On Thu, Jun 7, 2012 at 8:18 PM, John Cowan <co...@mercury.ccil.org> wrote: > Rick Moen scripsit: > >> I keep hearing a limited group of people speaking of this alleged tort >> ('purporting to sublicense'), but fail to find it in copyright law. > > Is there actually such a thing as copyright sublicensing? I suspect not. > In which case "purporting to sublicense" an unchanged copy of a work > is usurping the copyright owner's right to control the license, and > likewise for a copy whose changes are de minimis. You can license your > derivative work however you like, consistently with the original license, > but that's not a sublicense: it is the license of the new work.
Maybe I misunderstood what Larry Rosen was saying about the differences in the BSD and MIT licenses in his book then ;-). I thought his discussion was pretty clear though. Also see Gardner v. Nike, 9th Circuit 2002 (IANAL btw as I will repeatedly state below). I am not 100% sure but I think after the changes in 2010, exclusive licensees are now assumed to have sublicense rights as well. For non-exclusive licensees (all open source licenses), that's a different issue. Maybe a lawyer could correct me if I am wrong about the 2010 changes. The thing that makes these issues hard is that protecting software with copyright is a bit like pounding nails with an adjustable wrench. The tool isn't really designed for that (copyright, at least in the US, is designed to protect literature, not recipes in cookbooks) and so it seems to me there are all sorts of gotchas. If I give a book publisher the right to sublicense my book, I would assume at a minimum they could tell a magazine they could serialize it, for example, and on what terms. Presumably they could license an excerpt to be published in an anthology and set terms (within certain limits dependent on the contract with the publisher) for that publication. Maybe they could even negotiate movie rights. My understanding is that US law assumes that sublicensing is not allowed unless specifically stated even in the case of an exclusive copyright license. IANAL though. The Nusphere case is more interesting when we stop thinking about software and look at copyright as protecting what might be thought of as "software as literature" or "software as expression." The GPL allows mere aggregation without license contagion but requires that works "based on" the original work carry the same license. If we assume that these tie directly to categories of US copyright works, then "based on" means derivative work (in the sense that a movie might be "based on" a book), while aggregation would appear to mean compiled or collected works (anthologies). A program linking to another program is not "based on" that other program in that sense regardless of the mechanism of linking any more than an anthology is based on the pieces published therein. Whether the Geminii table engine would be a derivative work of MySQL is a question that I don't think the jurisprudence is clear on (IANAL again). In the most simplistic of approaches, Nusphere would be safe. (It gets complicated because I don't think API's and can be effectively copyrighted, and header files are too heavily tied to APIs to get much protection in that way--- see endless discusson on Groklaw during the SCO case on this issue, but at the same time, if you can show continuity of expression that goes beyond functional requirements, then you might have a case.) But the point here is that both of these are cases where reasonable minds can disagree. Rick looks at the BSD license and says "well, it seems to allow me to license this to others under more restrictive terms if I keep the old copyright notices and license text in tact." Someone else might say "sublicensing is not mentioned. Therefore it's not allowed." Again with MySQL v. Nusphere, there are questions where reasonable people can disagree about the intersection of copyright law and software regardless of how severe Nusphere's violations of social norms are. These are the cases I see getting litigated. I just don't see how any statistics there tell us anything useful about the licenses. Best Wishes, Chris Travers _______________________________________________ License-discuss mailing list License-discuss@opensource.org http://projects.opensource.org/cgi-bin/mailman/listinfo/license-discuss