Alan writes an original computer program. It is 3 lines long. It is called "Hello world".
Bob takes Alan's program and replaces line 2. The new program is called "Goodbye asshole". "Goodbye asshole" is a derivative work. If Bob did not have Alan's permission to create a derivative work then he gets no rights at all. If Bob had Alan's permission to create a derivative work then he gets the sole right to distribute line 2. He does not get any right to distribute lines 1 and 3. He cannot distribute "Goodbye asshole" including lines 1 and 3 without separate permission from Alan. -- Peter Fairbrother -- license-discuss archive is at http://crynwr.com/cgi-bin/ezmlm-cgi?3
