[erlang-questions] CZMQ licensing

Joe Armstrong erlang@REDACTED
Fri Jan 31 13:05:03 CET 2014

Hi Pieter,

Welcome to the Erlang list. Great to see you here.


On Fri, Jan 31, 2014 at 12:55 PM, Pieter Hintjens <ph@REDACTED> wrote:

> Hi people,
> Joe pointed me to the thread on erlang-CZMQ and licensing.
> Just to clarify.
> CZMQ is not dual-licensed.
> The licensing on CZMQ is LGPLv3+static link exception, the same as
> libzmq and as most of the ZeroMQ projects. This license explicitly
> allows bundling of the compiled code with commercial applications
> under whatever license the user wants. It removes the LGPL/GPL
> requirements on such bundles (static links).
> This is what I'd recommend for erlang-CZMQ too. It means taking
> COPYING and COPYING.LESSER (since LGPLv3 is a patch on GPLv3) from
> CZMQ or libzmq.
> Mahesh is correct: without an explicit license, one cannot use a
> software project, unless one is the owner.
> -Pieter
> Ps. native Erlang ZMTP would be fantastic. We've done this in Java and
> .NET, and it's been very positive for those communities.
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