On 2016-02-18 13:32, Random832 wrote:
On Thu, Feb 18, 2016, at 14:08, Brian Inglis wrote:
It is the closest European licence to public domain and allows all uses for all purposes, including deriving and sublicensing. The Copyleft Clause is unfortunately named but serves only to ensure the terms of the licence may not be restricted in copies or derivations. It does not appear to be a GNU copyleft which restricts uses.
I think you're confused about what the GNU copyleft is if you think this is a coherent statement. The GNU copyleft _exactly_ "ensures the terms of the license may not be restricted in copies or derivations", I don't know what else you think it "restricts uses". The problem is that this prevents a work (or portions thereof) covered by the license from being incorporated in a larger work that has components under restrictive licenses (such as commercial UNIX derivatives)
Which is a restriction not in the BSD licences and public domain works. Note that I am not suggesting this licence for tz, just for IERS leap-seconds.list, as approval of EUPL would likely be easier than alternatives in EU organizations. Likewise, the tz leapseconds would only require the same one-liner, and perhaps also the URL. For CC0, something like the following is suggested, which appears more onerous than just the EUPL statement and perhaps URL: "IERS leap-seconds.list (c) Copyright 2016 Earth Orientation Center, IERS, Paris Observatory, France Christian Bizouard, christian.bizouard@obspm.fr Daniel Gambis, daniel.gambis@obspm.fr To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty. You should have received a copy of the CC0 Public Domain Dedication along with this software. If not, see <http://creativecommons.org/publicdomain/zero/1.0/>." "It is also recommended that you include a file called COPYING (or COPYING.txt) containing the CC0 legalcode as plain text." -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada