* Kenneth Downs: > If you seek to provide a closed source app that is built upon > Andromeda, you are required to provide the source code to Andromeda > itself. However, your app is not a derivative work in the strict > sense because your code is not mixed in with mine in any sense. You > never modify a file, and your files and mine are actually in separate > directories. Many proprietary software vendors think that if you program to an interface which has a sole implementation, your code becomes a derived work of that implementation. If you sell different licenses for run-time and development environments, such an attitude towards copyright law seems inevitable. It's a bit unfortunate that the FSF promotes this interpretation, although it's necessary for creating an effective copyleft license for libraries and other reusable components.
