The same old topic: Licensing.
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[quote author="Esdras Beleza" date="1275400201"]Hi,
I need to prepare a lecture for my colleagues about Qt Development, and one of the topics is licensing. But it's a very controversial topic, since the three Qt licenses make its licensing hard to understand. I tried to read "Qt Licensing(Qt Licensing)":http://qt.nokia.com/products/licensing) a few times, but I'm still confused.
So, I'll start with a some questions:
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Can I develop and deploy closed-sourced commercial applications without buying a commercial license of Qt?
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A more specific question, since the answer may be different: can I develop and deploy closed-sourced commercial applications without buying a commercial license of Qt, distributing it with the original Qt libraries, without any changes on it?
My personal projects are free and open sourced, but I need these questions answered so I could convince (or not...) some coworkers to use Qt on their commercial projects.[/quote]
If you are preparing lecture and need the material regarding it then "Qt in Education":http://qt.nokia.com/services-partners/qt-in-education will help you.
Check this "presentation":http://www.slideshare.net/qtbynokia/presentations also.
About licensing ,I think LGPL will not make any problem for you, As obvious you can not distribute that one.
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LGPL libs can be distributed. As long as you use dynamic libs and you do not modify the Qt libs you are on the safe side.
And please: No speculations on licensing topics ("I think..."). It is too delicate and does more harm than help.
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[quote author="Volker" date="1293547101"][quote author="Stavros Filippidis" date="1293545620"]Do we have anything new on the licencing follow-up with Cristy? :)[/quote]
The video is available "here":http://qt.nokia.com/developer/learning/online/talks/developerdays2010/qt-in-use[/quote]
Thanks for the link! Very interesting video and quite enlightening. Unfortunately, I did not get the answers I was looking for the two first questions in
http://developer.qt.nokia.com/wiki/LicensingQuestions
Maybe the comments at
http://blog.qt.nokia.com/2009/11/30/qt-making-the-right-licensing-decision/
should open again? ;)
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I will remind her of the wiki again. Maybe we can get some answers based on the questions directly. No promises though, she's doing all she can.
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[quote author="Alexandra Leisse" date="1294056575"]I will remind her of the wiki again. Maybe we can get some answers based on the questions directly. No promises though, she's doing all she can.[/quote]
Thanks in advance Alexandra! I think that the answers two these questions are very important for non-legal-expert-qt-developers, so we will be looking forward for answers.
By the way, IMHO, Cristy is doing a great job! The video http://qt.nokia.com/developer/learning/online/talks/developerdays2010/qt-in-use/breakfast-seminar-qt-licensing-explained was very insightful. :)
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I don’t want to open new topic, and I don’t know if these are told somewhere else, so...
What about licences of Qt related stuff but not in the repository by Nokia? This particular case I have is related to Qt logo(not actually stealing image from Qt site but just using the logo), but maybe there is others, maybe mainly art in the sites.
Sorry if I’m asking something too obvious... Like, the logo is available in git repo? :)
That leads me to another question: can I count on that everything in the Qt repos are licenced under LGPL/GPL?
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For the logo: Guidelines are on the "logo download":http://qt.nokia.com/about/logos-for-download/ page
For the files in the repos: They should have a license statement on the top (some of them are from other sources and may have another license!)
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[quote author="Volker" date="1294233087"]For the logo: Guidelines are on the "logo download":http://qt.nokia.com/about/logos-for-download/ page
For the files in the repos: They should have a license statement on the top (some of them are from other sources and may have another license!)[/quote]
Pictures and format restricted files can’t really have the licence, though... Maybe in meta tag, but those are cumbersome to look at, if they even exist.
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They may have a README in the directory they live on... Hard to say, some of the Troll's license specialists should better comment on this. Maybe it's better to start a new thread for this, so that it gets some attention.
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[quote author="Alexandra" date="1294056575"]I will remind her of the wiki again. Maybe we can get some answers based on the questions directly. No promises though, she's doing all she can.[/quote]
Anything new on this? :-)