[Rd] license.db Bug Report (FSF field for CC 4.0 licenses)

[Kurt Hornik]

>>>>> Trevor Davis writes:

Thanks: now updated in R-devel.

We dropped the obsolete and unused CC 2.0 and 3.0 entries, and
simplified the OSI and FSF tags to what is needed for the FOSS tag.

Best
-k

> Hi,
> I noticed some errors in the `FSF` fields in `share/licenses/license.db`
> for some Creative Commons licenses:

> `license.db` should be corrected to:

> ```
> Name: Creative Commons Attribution-ShareAlike 2.0 Generic License
> Abbrev: CC BY-SA 2.0
> FSF: free_and_GPLv3_incompatible

> Name: Creative Commons Attribution 4.0 International License
> Abbrev: CC BY 4.0
> FSF: free_and_GPLv3_compatible (
> https://www.gnu.org/licenses/license-list.html#ccby)

> Name: Creative Commons Attribution-ShareAlike 4.0 International License
> Abbrev: CC BY-SA 4.0
> FSF: free_and_GPLv3_compatible (
> https://www.gnu.org/licenses/license-list.html#ccbysa)
> ```

> * According to the current version of
> https://www.gnu.org/licenses/license-list.html the FSF considers the CC BY
> 4.0 license "compatible with all versions of the GNU GPL" and the CC BY-SA
> 4.0 license "one-way compatible with the GNU GPL version 3: this means you
> may license your modified versions of CC BY-SA 4.0 materials under GNU GPL
> version 3".
> * Note Creative Commons explicitly declared GPL-3 a "BY-SA Compatible
> License" for version 4.0 on October 8th, 2015:
> https://creativecommons.org/share-your-work/licensing-considerations/compatible-licenses
> * In a previous version of the FSF license website available on web
> archives (e.g.
> http://web.archive.org/web/20150124042152/https://www.gnu.org/licenses/license-list.html#OtherLicenses)
> the FSF explicitly considered the earlier CC BY 2.0 and CC BY-SA 2.0
> licenses incompatible with the GNU GPL licenses.

>   I'm unsure whether the URL for the `FSF` field for the CC BY-SA 2.0
> license should point to such a Web Archived link or simply be stripped as I
> suggested above.  However the current version of
> https://www.gnu.org/licenses/license-list.html#ccbysa no longer mentions
> the CC BY-SA 2.0 license nor its incompatibility with the GPL license and
> hence it should be updated in some fashion.

> Best,

> Trevor

> 	[[alternative HTML version deleted]]

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