[LAD] GPL & cc-by-3.0

hermann meyer brummer- at web.de
Sat Jun 15 17:09:46 UTC 2013

Am 15.06.2013 18:38, schrieb Nils Gey:
> On Sat Jun 15 18:25:29 2013 hermann meyer <brummer- at web.de> wrote:
>> Am 15.06.2013 17:47, schrieb Nils Gey:
>>> On Sat Jun 15 17:01:05 2013 hermann meyer <brummer- at web.de> wrote:
>>>> Hi
>>>> Did anyone here know if the GPL+ v2.0 /v3.0 is compatible with the
>>>> CC-BY v3.0 (unported)
>>>> http://creativecommons.org/licenses/by/3.0/
>>>> I only found here
>>>> http://wiki.debian.org/DFSGLicenses#Creative_Commons_Attribution_Share-Alike_.28CC-BY-SA.29_v3.0
>>>> that the CC-BY-SA v3.0 is compatible, but no mention of the CC-BY
>>>> v3.0 My understanding is that the CC-BY v3.0 has less restrictions
>>>> then the CC-BY-SA version, but I'm a bit unsure.
>>>> Background: I would include some work which is under the CC-BY v3.0
>>>> to my project, which is under the GPL+ v2.0 (or later). I wouldn't
>>>> violate the DFSG, so I would make sure there is no issue at all when
>>>> I'm do so. The Author of the CC-BY v3.0 files is fine with my wishes.
>>>> any hints?
>>>> hermann
>>> you can derive a version of the cc-by work, eveb with no
>>> modifications. You just need to give it a different name and credit
>>> the original author. Then you can change the license to a compatible
>>> one. I suggest cc by sa since this adds GPL compatible copyleft.
>>> Changes on your version need to be relicened as ccbysa then while the
>>> original ccby version stays untouched.
>>> This is a general principle: a work which is as freely licensed as cc
>>> by, public domain or compatible can be relicensed as-is with a more
>>> strict one.
>> Do you believe that it is needed to re-license it, I would prefer to
>> leave the license untouched, and include it "as it is", if possible.
>> My impression now, after reading all the posts about this theme on the
>> debian mailing list is, that they didn't make a difference between
>> cc-by-sa or just cc-by. They just mention the cc-by-sa on the wikki
>> page, because it is more restricted, but open enough.
>> Oh, what a hell, those license jungle. :-(
> yes. That is possible. You can do whatever you want with cc by except not giving credit.
> My suggestion assumed you want to be able to modify things and thus are interested in copyleft.
Well, no, there is no need to modify, and I would give credits, already 
done on the project page, even if I didn't have upload the files to our 
repository and will do in the about box as well, when I upload them.

I just was unsure what the license really mean, and if it is DFSGL 
compatible. Now, after investigate some time in research, I know, that 
the debain folks itself didn't know that for themselves, but the usual 
practice is to accept cc-by since version 3.0 (2.5).


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