Joseph Rushton Wakeling <joseph.wakel...@webdrake.net> writes: > On 07/07/12 06:10, David Kastrup wrote: >> This is not a question of reinterpretation or optional. > > When I referred to being able to interpret a "GPLv2 or later" work as > GPLv3, it's not _my_ interpretation -- it's an explicit permission > granted by the wording of the license grant. > > This program is free software; you can redistribute it and/or > modify it under the terms of the GNU General Public License > as published by the Free Software Foundation; either version 2 > of the License, or (at your option) any later version. > > That's an explicit grant that says you can take _either_ the terms of > the GPLv2 _or_ the terms of a later GPL version, and you can pass to > downstream users either set of permissions for your modified version.
But not something which would require cherry-picking some terms from one license, and some terms from another. > Hence, you can link "GPLv2 or later"-licensed code against > GPLv3-licensed code, so long as the work as a whole is considered to > be covered by GPLv3. But you can't link "GPLv2 or later" code with both GPLv2-only and GPLv3-code, and once you link with either, the choice is fixed. > I'm not advocating for AGPLv3; it's just that I can't see a GPLv2 > compatibility case for AGPLv3 that doesn't also apply to LilyPond's > current licensing choice of GPLv3. AGPLv3 basically is a GPLv3 variant with additional restrictions. The boilerplate GPLv3 has an explicit clause allowing to combine GPLv3 and AGPLv3 parts into a program covered by AGPLv3. That is more or less a one-way street. Putting LilyPond under the AGPL does not buy much: people offering a network service based on LilyPond need to make the source of their version of LilyPond available for download. I don't see any evidence of modified versions of LilyPond being in use. Switching to a lesser known license does not seem useful for me at this point of time. -- David Kastrup _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
