[Qt-interest] LGPL and static linking

Raul Metsma raul at innovaatik.ee
Wed Nov 25 20:15:12 CET 2009


Yeah regular QtScript, but they are changing backend to webkit 
javascript backend, which will get the berformance boost etc. and again 
commercial users no benefit

Raul

Bastian Bense wrote:
> QtScript is licensed under the LGPL just like the rest of Qt 4.6.
> 
> You are allowed to use it in commercial/closed source applications as 
> long as you don't link statically/embed it without providing the object 
> files (from what I've learned on this thread).
> 
> Personally I don't see such a big problem with dynamic linking. It might 
> take a bit longer, but on the long run it gives you more freedom to 
> upgrade the Qt libs without having to re-compile. Simply create an 
> installer for Windows which places the required Qt libs into the 
> application directory; use macdeployqt on Mac OS X.
> 
> 
> 
> 2009/11/25 Christian Dähn <daehn at asinteg.de <mailto:daehn at asinteg.de>>
> 
>     Hi,
> 
>      > I'm also worried about the GPL/LGPL move.
>      > I have QT license exactly for that, static linking.
>      > But Trolls are adding modules which I am not able to use
>      > (QtMultimedia/phonon, Webkit, QtHelp, now the QtScript)
>      > which makes me worried
> 
>     I aggree to that - I'm in the same situation:
>     Commercial license but many parts of Qt now don't allow
>     to use it for closed source development.
> 
>     Currently I'm worried that a commercial license doesn't
>     bring me any advantages - but more problems and lesser
>     possibilities to create closed source applications.
> 
>     Further I have to decide, if it's possible for our company
>     to use Qt 4.6 in the future - due to the change of QtScript
>     which cannot be used in commercial apps any more :-(
> 
>     So: Qt 4.6 will bring many many disadvantages for commercial
>     developers - so why buy licenses any more?
> 
> -- 
> Best regards,
> Bastian Bense
> 
> 
> 
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