GPL compatible license

[cliffordp]

As described at #22 (comment), the current Creative Commons license is not compatible with WordPress' license.

World you consider changing the license this is released under, or dual-licensing it?

Thank you very much.

[MattWilcox]

Do you have a link to the WordPress licence?

[cliffordp]

WP's license is at https://wordpress.org/about/license/

In order to create a plugin for the WP plugin repository, it'd have to meet these conditions: https://wordpress.org/plugins/about/
Excerpt:

Your plugin must be compatible with the GNU General Public License v2, or any later version. We strongly recommend using the same license as WordPress — “GPLv2 or later.”

[anibalsanchez]

Hi,

I'm also trying to publish a Joomla extension, integrating adaptive-images.php, but Joomla also requires any GPL-compatible license (GPL, AGPL or LGPL).

According to Creative Commons:

Can I apply a Creative Commons license to software?
We recommend against using Creative Commons licenses for software. Instead, we strongly encourage you to use one > of the very good software licenses which are already available. We recommend considering licenses made available > by the Free Software Foundation or listed as “open source” by the Open Source Initiative.

Unlike software-specific licenses, CC licenses do not contain specific terms about the distribution of source code, which is often important to ensuring the free reuse and modifiability of software. Many software licenses also address patent rights, which are important to software but may not be applicable to other copyrightable works. Additionally, our licenses are currently not compatible with the major software licenses, so it would be difficult to integrate CC-licensed work with other free software. Existing software licenses were designed specifically for use with software and offer a similar set of rights to the Creative Commons licenses.

Our licenses are currently not compatible with the GPL, though the CC0 Public Domain Dedication is GPL-compatible and acceptable for software. For details, see the relevant CC0 FAQ entry. We are looking into compatibility of BY-SA with GPL in the future; see the license compatibility page for more information.)

While we recommend against using a CC license on software itself, CC licenses may be used for software documentation, as well as for separate artistic elements such as game art or music.

Please, could you add "GNU General Public License v2" license to the library? If you are Ok with the idea, I can send you a PR with the license addition.

https://wiki.creativecommons.org/FAQ#Can_I_apply_a_Creative_Commons_license_to_software.3F