GNU Lesser GPL, application sell?

licensing lgpl
Infinite Possibilities picture Infinite Possibilities · Jan 27, 2010 · Viewed 17.6k times · Source

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Using LGPL library in a commercial Java application

Hello guys!

There is a project under the GNU Lesser GPL license. I want to use this project in my application. Can I sell my application using this license?

Answer

Joonas Pulakka picture Joonas Pulakka · Jan 27, 2010

In a nutshell, the idea of LGPL'd projects (usually libraries) is that you are free to use them as you wish in your own application, be it open or closed source, free or proprietary - as long as you publish the source code of the LGPL'd part (if you modify the LGPL'd part, you must publish the modified sources, under LGPL).

Additionally, the libraries must be linked dynamically so that they could be replaced to another version by the user if he so wishes. For libraries (.dll, .so, .jar...), this is usually self-evident. Side note: this is inherently pointless requirement, because nothing requires that your application works with any other library version than the one that you originally provided. You could even actively prevent your application from working with other versions.

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