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Date: Fri, 29 Sep 2006 08:08:58 +0200 (MEST) From: Jan Engelhardt <jengelh@...ux01.gwdg.de> To: Linus Torvalds <torvalds@...l.org> cc: Jörn Engel <joern@...nheim.fh-wedel.de>, Lennart Sorensen <lsorense@...lub.uwaterloo.ca>, Chase Venters <chase.venters@...entec.com>, Sergey Panov <sipan@...an.org>, Patrick McFarland <diablod3@...il.com>, Theodore Tso <tytso@....edu>, Alan Cox <alan@...rguk.ukuu.org.uk>, James Bottomley <James.Bottomley@...eleye.com>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: GPLv3 Position Statement > >And the GPLv2 and GPLv3 really _are_ mutually incompatible. There is >absolutely nothing in the GPLv2 that is inherently compatible with the >GPLv3, and the _only_ way you can mix code is if you explicitly >dual-license it. > >Ie, GPLv2 and GPLv3 are compatible only the same way GPLv2 is compatible >with a commercial proprietary license: they are compatible only if you >release the code under a dual license. > >The whole "or later" phrase is legally _no_ different at all from a dual >licensing (it's just more open-ended, and you don't know what the "or >later" will be, so you're basically saying that you trust the FSF >implicitly). So what would happen if I add an essential GPL2-only file to a "GPL2 or later" project? Let's recall, a proprietary program that combines/derives with GPL code makes the final binary GPL (and hence the source, etc. and whatnot, don't stretch it). Question: The Linux kernel does have GPL2 and GPL2+later combined, what does this make the final binary? (Maybe you implicitly answered it by this already, please indicate): >Exactly. The GPLv3 can _only_ take over a GPLv2 project if the "or later" >exists. >From that I'd say it remains GPL2 only. Thanks for the clarification (though I know we're all IANALs.) Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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