Questions about distribution of software using Qt

Gradient

I have a proprietary software that I want to distribute with .so or .dll files. Will I have to distribute the source code of the Qt-part of my software? For example, if I use Qt and provide the .so files, would I have to distribute the entire source code if asked?

Also, do I have to mention that I used Qt to the users of my program? If yes, how would I do so? In a README file?

There is this quote found on Qt website (http://qt.digia.com/Product/Licensing/License-Comparison/) :

" Possibility to use Qt without delivering the full source of the library code to end users - and no need to set up delivery system for the exact source code used with to product (as mandated by LGPL) "

How would this be interpreted?

sierdzio

Hi, please see my answer in "this thread":https://qt-project.org/forums/viewthread/25663/.

Gradient

Thank you!

Can you tell me if I need to distribute Qt sources alongside my application if I use the LGPL. Or do I need to provide them if asked? Or is all that not necessary?

andre

Provide if asked, or simply refer to another source they can be downloaded from.