On Tue, May 5, 2009 at 10:48 PM, Brian Granger <ellisonbg....@gmail.com> wrote:
>
>> When you create something (book, photo, program) you automatically
>> have a copyright in/on that work.
>
> Yep.
>
>> You may control the creation of
>> copies. With a GPL/GFDL license you explicitly grant others further
>> freedoms - someone may make unlimited copies. They may make
>> modifications. BUT, if they make modifications and distribute the
>> modified version, they must apply the same license. (Thus the
>> adjective "viral".)
>
> This is all true. But modifying an original work is not the only way
> of creating a derived work. Ondrej's script *is* a derived work under
> the definition that the FSF gives (when run, it dynamically links to
> Sage).
This claim ("Ondrej's script *is* a derived work...") is debatable:
http://en.wikipedia.org/wiki/GNU_General_Public_License#The_GPL_in_court
>
> >
>
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