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. 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
