[tz] NIST leap-second file not yet updated

Brian Inglis Brian.Inglis at systematicsw.ab.ca
Thu Feb 18 21:59:48 UTC 2016

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 at obspm.fr
     Daniel Gambis, daniel.gambis at 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
"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

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