With Lazarus (www.lazarus.freepascal.org) the LCL is released under LGPL with a special mention that the code can be used in "closed source" application (released under other licencing terms) without problems. If we change the source code of the lcl we must release the changes to the community.
Now I'm looking if I could use ZeosLib in a closed source application. But the source code is under LGPL (as the LCL) and i see no explicit indications that I can do so. My goal is not to link against an external library but to compile the code inside my program... as we always do in Pascal!
Regards.