[OSM-dev] Licence of the Mapnik style?

[Paul Hartmann]

On 04/10/2012 02:28 PM, Sven Geggus wrote:
> Hello altogether,
> 
> with the upcoming adoption of the ODBL for OSM data the licence of common
> Mapnik styles will definitely get more important!

I've started emailing the authors some time ago. The main contributors
(Steve Chilton and Lennard) would license their work under the terms of
CC0. So do the following committers: artem, nick, spaetz, tomhughes. A
few people I haven't contacted so far.

> I strongly feel the need of a decent map style to be distributed under a
> copyleft style licence (IMO Affero GPL would be best suited, but IANAL) to
> make shure that any future enhancements will also be freely available.

Copyleft vs. PD is a religious debate, so it's not much use to argue
here. Let me just point out, that I've started the licensing in order to
ship a Mapnik style[1] with JOSM, which won't be possible with AGPL.

Also the authors obviously have the last word on this.

[1]
<https://github.com/bastik/mapcss-tools/tree/osm/mapnik2mapcss/osm-results>

Paul