On 03/09/2013 10:26 PM, John Morris wrote: > On 03/09/2013 06:22 AM, Matt Shaver wrote: >> On Sat, Mar 9, 2013 at 2:02 AM, Matt Shaver <m...@mattshaver.com> wrote: >> To be clear: you can use libzmq (and any other 0MQ project with the >> same license) in a GPLv2 project, both as a dynamic library, and in a >> static link. If you make patches, you need to publish them, as usual. >> There's no reason there would be any restrictions for GPLv2 projects >> since the license is designed to work with all application licenses >> including commercial closed source. > > Pieter's not right about this. LCNC is GPLv2 ONLY, and libzmq is > LPGLv3. This compatibility matrix shows the combo is invalid: > > http://www.gnu.org/licenses/gpl-faq.html#AllCompatibility > > The trouble is that the GPLv2 license requires linked software to be > 'conveyed' as GPLv2, and there are terms in LGPLv3 that are incompatible > with GPLv2.
In this post, Bradley Kuhn clearly explains where the incompatibility lies: https://mail.gnome.org/archives/desktop-devel-list/2010-July/msg00097.html > I think Pieter's confusion may stem from the common > assumption that since software with proprietary licenses may link > against LGPL code, that all licenses are therefore compatible. The > difference is that proprietary software licenses wouldn't require the > LGPL library to be 'conveyed' under the proprietary license, as the GPL > does. This is a problem with 'copyleft' licenses, and why GPLv2 only > and GPLv3 are incompatible. > > If Pieter wants to allow linking from GPLv2 ONLY projects, libzmq should > be relicensed LGPLv2+. > > As for LCNC, I still believe we should relicense GPLv2+, and I believe > there's no easy way out. > > Sorry to be the wet towel! > > John ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
