[Interest] QtIFW and LGPL3

Oliver Niebuhr googleersatz at oliverniebuhr.de
Sat Jan 6 02:58:20 CET 2018

Happy new Year everyone :)

Thanks Thiago. Those were my initial thoughts too.

Well, 1 more thing to take care about.


On 08/12/2017 14:43, Thiago Macieira wrote:
> On Friday, 8 December 2017 04:33:45 PST Oliver Niebuhr wrote:
>> Questions are:
>> 1.) Do I have to put the IFW Installer Scripts, *.ui Files etc. under
>> the LGPL3 License and make it public?
>> 2.) Do I have to publish the (from my end unchanged) QtIFW Source Code too?
> The LGPLv2.1 or v3 require you to make the source code of those bits available 
> to anyone who receives the binary. I don't know the exact internals of the IFW 
> to say what is "linking", but to be on the safe side, I'd just make everything 
> available, even the bits I wrote. The licence for those bits is whatever you 
> want it to be, so long as it's compatible with the LGPL.
> You have to include the the Qt and IFW source code in the offer. Either put 
> the sources in your website or keep a copy somewhere you can access in case 
> one of your users asks in the next five years.
>> I already contacted Digia directly and asked them this and other
>> Questions. Also gave those and more Details. But the only answer after a
>> few weeks was: "Thanks for contacting us. Please tell us what License
>> you want to buy" etc. They seem to hate the Open Source Community as
>> they never answer anything but instead you get contacted by a Sales
>> Person. So they are not helpful at all. At least from my experience.
> You don't ask licensing and legal compliance issues to them. You ask your own 
> lawyers. They're the only ones qualified to give legal advice.
> Which this isn't.

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