[cc-community] Use cases for cc by-sa compatibility with GPL
rob at robmyers.org
Fri Jan 6 16:31:23 EST 2012
On 06/01/12 21:20, drew Roberts wrote:
> Fine, but just to be a bit stupid, what if I, a sculptor, took a block of wood
> down to the local park where you, another sculptor, had just installed your
> latest sculpted stone masterpiece with the little brass plaque with your
> BY-SA license details. So there I am in the park with my block of wood and I
> copy your stone sculpture using my block of wood. I would say it is clear
> that your stone sculpture is the source of my wooden one. So how would a
> source requiring BY-SA work in this case.
You are providing the source. It's the object. People are free to copy
it. No problem.
> I would guess that the license would need to take the above distinction into
> account somehow.
If we copy the GPL's differentiation between object code and source
code, it's fine. My sculpture is source, your sculpture is source. My
photograph of your sculpture is source. Your multi-layer bitmap
incorporating my photograph is source. If you flatten it into a JPEG,
that is object code, so you must offer source.
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