On Sun, Jun 06, 2004, Ken Foskey wrote:
> GPL is very specific, you cannot create a license that says that you
> cannot use it in a commercial instance.
More specifically, the GPL is itself copyright *and not modifiable*. At
the top it reads:
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
http://www.gnu.org/copyleft/gpl.html
http://www.opensource.org/licenses/gpl-license.php
In other words, you cannot add and subtract clauses from the GPL to make
your own custom GPL. (Nor can you do this and call it something else:
calling it "Mary's Super Special Licence" doesn't stop it being a
copyright violation.)
If you want to create a GPL-like licence with a "you cannot use this
product commercially" clause, then you cannot do this by modifying the
GPL. Instead you should either look for another licence or draw one up
yourself (or better, get an IP lawyer to do it).
-Mary
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