Im making an engine that I plan to distribute as a library. The engine uses the DevIL SDK for all the image loading. So would my engine be considered a derivative of the devil library? Can I charge people to use my engine without having to distribute the source. BTW: The devil sdk is under the LGPL license. Also, can I redistrubute the devil libraries and headers along with my engine? I''ve always found licenses confusing, so please forgive me if these questions are annoying or anything. :::: [ Triple Buffer ] ::::

As long as you only link dynamically with DevIL source, all you have to do is provide the DevIL source along with your engine binary.

If you have linked statically or otherwise included DevIL source (apart from interface headers and such) directly in your engine, you must provide all source and release your engine under LGPL (or GPL).

In any case, you are allowed to distribute DevIL binaries and headers, so long as you also provide the full DevIL source when asked.