Re: GPL traitor !

[Hyman Rosen]

David Kastrup wrote:
> Sure.  But it does not mean that the work is necessarily free from the
> copyright of others.

It is free from the work of others unless it contains pieces of
the other work copied into it.

> There have been cases where secondary literature, or spinoffs or
> continuations have been prohibited on the base of copyright laws.

Yes. But these have never been applied to computer code. Just the
opposite, in fact - that an expression is the only possible way to
represent something is a defense against copyright violation.

> Things are not as pretty as you'd like them to be.

You cannot use copyright to prevent interoperability with separate
programs.