&gt; It&#x27;s not their fault that people have a completely fucked up interpretation of &quot;derivative work&quot; that includes any combination of two completely separately developed works.<p>Indeed, &quot;derivative work&quot; is a well-understood term of art in Copyright law. So the courts will have to decide if that&#x27;s truly what they will interpret, or will they take the redistribution &amp; usage restrictions of the GPL as a separable matter.