retitle 767504 mpd: GPL-2+ incompatible with libmp4v2 which is MPL-1.1 On Fri, 31 Oct 2014 at 17:20:27 +0100, grossepoube...@free.fr wrote: > On Fri, Oct 31, 2014 at 03:27:47PM +0100, grossepoube...@free.fr wrote: > >> You can't link GPL packages against MPL packages. > >IANAL, but I read in MPL1.1 section 6.2 that I can choose to use the > >code under a newer version of the license, such as MPL2.0 which is > >deemed compatible with the GPL by the FSF. > > IANAL too, but you can find several pages saying that MPL isn't compatible > with GPL like this one : > > http://www.tomhull.com/ocston/docs/mozgpl.html
Sorry, but the bug submitter appears to be correct here. MPL-1.1 §6.2 says Once Covered Code has been published under a particular version of the License, You may always continue to use it under the terms of that version. You may also choose to use such Covered Code under the terms of any subsequent version of the License published by Netscape. So yes, you can opt to use libmp4v2 under MPL-2.0. However, MPL-2.0 is only compatible with the GPL via MPL-2.0 §3.3, which does not apply if the Covered Software is "Incompatible With Secondary Licenses". According to MPL-2.0 §1.5, anything "made available under the terms of version 1.1 or earlier of the License" is indeed "Incompatible With Secondary Licenses". The FSF's license list does make this explicit: Software under previous versions of the MPL can be upgraded to version 2.0, but any software that isn't already available under one of the listed GNU licenses must be marked as Incompatible With Secondary Licenses. This means that software that's only available under previous versions of the MPL is still incompatible with the GPL and AGPL. Unfortunately, the MPL-2.0 effectively behaves like two separate licenses: "MPL-2.0 Incompatible With Secondary Licenses" and plain MPL-2.0. The former is incompatible with the GPL, the latter is compatible. Regards, S -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org