[Development] Adding LGPLv3 to Qt

[Knoll Lars]

On 20/08/14 11:16, "Florian Weimer" <fweimer at redhat.com> wrote:

>On 08/20/2014 11:02 AM, Knoll Lars wrote:
>
>> Please have a look at
>> http://blog.qt.digia.com/blog/2014/08/20/adding-lgpl-v3-to-qt/ for
>>details.
>
>Looking at the Fedora corpus, there are quite a few programs which link
>against Qt and which are licensed under the GPL, version 2, but not any
>later versions.  If Qt gradually moves new components to the LGPLv3,
>this could threaten the future evolution of these programs.

This is not a problem as far as I can see for two reasons:

1. We don’t remove LGPLv2 for any of the libraries that are part of 5.3.
2. We explicitly added GPLv2 to the new libraries to make sure open source
projects that are using GPLv2 only do not have issues using the new
libraries.

Cheers,
Lars

>
>Fedora is not affected by this because it will likely treat Qt as a
>system library, so that it GPLv2 programs can still use it if its
>license is not GPLv2-compatible, but this interpretation of the system
>library clause in the GPL is not universal.
>
>-- 
>Florian Weimer / Red Hat Product Security