What not to do with the component (Qt) under the LGPL (v2.1)


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I want to use in your Qt application, I don't want to distribute source code.
Maybe later I will want to sell it, that is the app in the future commercial.

Tell me, where is the boundary of what is permitted LGPL? What I can't do not to get under (L)GPL violation?

Until I realized that I can use dynamic linking and don't modify the Qt code, that I should be enough. Is this true?

Thank you
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2 Answers

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A license for Qt to make, and like all.
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No, LGPL is roughly the same as the GPL, only permitting the linking of third party code.
If you don't want to open the project source files in Qt — you must buy a commercial license (half kilobaksa was a year ago, now I do not know). In another way, if you don't want to break anything.
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