Re: Add support to some Creative Commons licenses (e.g. Stack Overflow support)

[Valerio Bozzolan]

Hi Fred,

Yep it's confusing but amazing!

An artwork or a piece of text in CC BY-SA can be safetely used inside a GNU GPL 
program and shared as a whole GNU GPL program (relicensed as GNU GPL). The 
reverse it's not possible.

This is very common in fully-free videogames (e.g. 0ad, SuperTuxKart, ...) 
released just under GNU GPL.

More resources:

https://www.gnu.org/licenses/license-list.en.html#CC0

https://www.gnu.org/licenses/license-list.en.html#ccby

https://www.gnu.org/licenses/license-list.en.html#ccbysa (4.0)

We just have to ignore all the other Creative Commons licenses that are 
absolutely non-free. Like ND, NC and combinations of them.

Thank you again for your work in LibreJS!

-boz

Il 2 febbraio 2022 00:52:53 CET, fred-fsf <fred.k@member.fsf.org> ha scritto:
>Valerio,
>
>I'm not aware of "one-way" compatibility in CC BY-SA (4.0) and GPLv3, 
>even do not know what this "one-way" means.
--
Valerio Bozzolan

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