Combining GPLed code with codes of other licenses

Joseph Hick leet16y at
Fri Jul 6 09:21:23 UTC 2007

Thanks for your response. a related question just for
the sake of knowledge.

take for example, a n00by programmer who does not have
a good understanding of licenses combined codes from
different licenses and released it. What are the legal
implications in the following cases:-

1. The programmer combined GPLed code with code
covered under an incompatible license, added his own
code and released the work under GPL license.

2. Same as above, but he released the work under the
incompatible license.

what are the penalties the programmer or its
*users*[1] might have to pay if he refuses to
discontinue such distributions and decides to

[1] need to know about users because I want to know
whether the users of such dubious projects are at

--- Arnoud Engelfriet <arnoud at> wrote:

> Joseph Hick wrote:
> > Am I legally not allowed to combine GPLed code and
> > non-GPL-compatible-license-ed code together in one
> > project, compile them as one executable and
> distribute
> > the project as an open source project?
> If you create a derivative work of GPL code and
> non-GPL-compatible-licensed
> code, you will find that there is at least one
> requirement in the
> incompatible license that contradicts the GPL. So
> that means you cannot
> comply with both the GPL and with the other,
> incompatible license when
> distributing the derivative work. Distributing a
> work without complying with
> the relevant licenses is an infringement of
> copyright and/or a violation of
> the license contract (depending on jurisdiction).
> Arnoud
> -- 
> Arnoud Engelfriet, Dutch & European patent attorney
> - Speaking only for myself
> Patents, copyright and IPR explained for techies:
>               Arnoud blogt nu ook:

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