> I'm not sure about that, but at least it's a much more reasonable position to take than declaring, "Everything that *I* say is a derived work is a derived work, regardless of what the law really says!"...
'Derived Work' is a very specific legal term that is codified in the USA's copyright law. It's not up to a copyright holder, or licensee, to define the scope of 'derived work'. The definition of 'derived work' is set out in copyright law and in the judgements handed down by the nation's court system.
So if the GPLvX tries to say that 'linking' a program to GPL'd licensed code causes the program that links to be 'derived work' and a judge disagrees with that interpretation of the copyright law.. then guess what? You can legally link against a GPL program and there isn't anything that the copyright holders, lawyers, programmers, or anybody else can do about it. If it's beyond the scope of copyright then it's something that you simply can't write a license to prevent.