[Qt-interest] LGPL and static linking

[Donal O'Connor]

Static linking is only allowed if you purchase commerical license as far as
I know. You are not allowed static link with LGPL.


On Wed, Nov 25, 2009 at 9:09 AM, Stefan Josefsson <
stefan.josefsson at vsmgroup.com> wrote:

>
> Hi,
>
> I am planning to develop a commercial closed source application on top of
> Qt/E and would like to use Qt statically linked to my application as this
> gives a substantial boost to the startup time and also reduces the RAM
> usage. The question is whether I am allowed to use the LGPL license of Qt. I
> have read a number of discussions about LGPL and static linking and some say
> that it is not allowed (those that know a little bit less?) and some say
> that it is allowed (those that know a bit more?) as long as you provide the
> rest of the world with a way to recompile the application with a modified
> version of the LPGL:d code (Qt in this case). See for instance these links:
> http://www.gamedev.net/community/forums/topic.asp?topic_id=541047
> http://www.ics.com/files/docs/Qt_LGPL.pdf
> http://ubuntuforums.org/showthread.php?t=1066632
>
> What is Nokias view of static linking and LGPL?
>
> I also just read on the blog that the QtScript module from now on will be
> under LPGL even if you buy a commercial license of Qt, so a commercial
> license is not the solution for using static linking with Qt if you want to
> use QtScript.
>
> Thanks,
> Stefan
>
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