[License-discuss] OSL and GPLv3
antoine.thomas at prestashop.com
Tue Jun 18 15:02:04 UTC 2019
Patrice, thanks a lot for your answer.
About your introduction question: the original code of PrestaShop project
is currently in OSL, with some modules in AFL. We also rely on librairies
in MIT and BSD, shipped with the installer (like the Symfony framework).
But, we would like to use a few librairies in LGPL and GPLv3 to accelerate
our developments and features. And we feel limited by the use of the OSL
license: it is difficult to find information about compatibility and other
feedback, as only a few projects are using it.
So, if I understand well, changing the license of the project to EUPL-1.2
could allow a project to include and ship both OSL (like our current code)
and GPLv3 (some new libraries) code? Interesting. Would this be possible
only in the European legal framework, or also outside Europe?
I had a quick look at an other reference (in French, but easy to
understand), a compatibility table between licenses:
Maybe this table needs to be updated about EUPL? What do you think? Do you
have an equivalent on joinup.eu?
Or maybe, if we follow this table, the best way is to change the license of
the OSL code, and move it to GPLv3. That would be a huge IP work, to check
with all authors of the project's code if they agree. But that would be an
interesting investment in IP for our community of users and developers.
And, also, in a time when many business backed open source project move to
proprietary, this would be a strong message of PrestaShop's commitment to
Patrice, what do you think? is it possible to have your feedback on this
questions and hypothesis? Maybe some other reader of this mailing list
could have feedback to share?
Antoine Thomas aka ttoine
t: +33 (0)6 63 13 79 06
antoine.thomas at prestashop.com
On Tue, 18 Jun 2019 at 13:53, Patrice-Emmanuel Schmitz via License-discuss <
license-discuss at lists.opensource.org> wrote:
> Dear Antoine,
> It seems related to the question: how far is your project (that would be
> globally licensed under OSL) a derivative of the GPL-3.0 code, or not?
> It is also related to your legal framework, in so far the various codes
> are more or less closely linked.
> The European legal framework considers that the normal and fair use of a
> tool (like a library, according to its usage instructions, without
> modifying the library source code) does not make resulting works
> "derivatives" of the used tool.
> In addition, it states (in my opinion) that linking different components,
> for the sole and fair purpose of making these components interoperable, is
> a copyright exception and cannot be restricted by the copyright owner. This
> temperate a lot the theory of "strong copyleft" on this point. (Law lovers
> will reed Recital 15 of *Directive 2009/24/EC
> An alternative solution is the use of the EUPL-1.2 that is expressly
> covered by the European legal framework and is expressly compatible with
> both the OSL and the GPL-3.0
> More on joinup.eu and in particular the recent JLA (joinup licensing
> Best regards,
> Le lun. 17 juin 2019 à 11:57, Antoine Thomas <
> antoine.thomas at prestashop.com> a écrit :
>> With our IP team, we have a few questions about compatibility between
>> OSLv3 and GPLv3. We consider as acknowledged that it's not possible to
>> distribute GPLv2 code in an OSLv3 project. However, what about the more
>> recent GPLv3, considered to be more open?
>> Of course, it's about using librairies and other dependencies in an open
>> source project, and then ship it.
>> So, there are two questions:
>> 1/ Is it possible to ship GPLv3 code within an OSLv3 project installer?
>> 2/ Is it possible to ship OSLv3 code within a GPLv3 project installer?
>> What do you think? what is your experience? Is there some examples?
>> Best regards,
>> [image: PrestaShop]
>> Antoine Thomas aka ttoine
>> Developer Advocate
>> t: +33 (0)6 63 13 79 06
>> antoine.thomas at prestashop.com
>> License-discuss mailing list
>> License-discuss at lists.opensource.org
> Patrice-Emmanuel Schmitz
> pe.schmitz at googlemail.com
> tel. + 32 478 50 40 65
> License-discuss mailing list
> License-discuss at lists.opensource.org
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