GNU Lesser GPL, application sell?
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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?
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.
You can use LPGLed libs with your proprietary software, but there are some restrictions you must observe. Better read the LGPL carefully and contact a lawyer.
General notes, You can use a LGPL library if
Generally many closed source projects use LGPL code, it is common practice, but read license carefully, especially this GPL-FAQ.
If you have doubts, contact lawyer.
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