Steve Langasek wrote:
defined very loosely, as it indeed it must be, because it is inherently a loose concept. There is, for instance, nothing in copyright law about linking....It doesn't "add", it clarifies. i.e. if you build a clustered file system that does stuff specific to reiserfs (e.g. use the reiser4 syscall), then that will be considered a derived work, and must be distributable under the GPL.Sure, you could go to court and argue that it isn't - but namesys have a clear clarification of what they consider, so I hope your lawyer is good :)The term "derivative work" in the GPL is defined
by copyright law andcase law.