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Re: Copyright information

From: Thomas Bushnell BSG
Subject: Re: Copyright information
Date: Tue, 06 Feb 2007 11:49:42 -0800

On Mon, 2007-02-05 at 21:45 +0100, Thomas Schwinge wrote:
> Hello!
> Mach files have copyright headers like this:
> #v+
> /*
>  * Mach Operating System
>  * Copyright (c) 1993-1987 Carnegie Mellon University.
>  * Copyright (c) 1993,1994 The University of Utah and
>  * the Computer Systems Laboratory (CSL).
>  * All rights reserved.
> [...]
> #v-
> Why haven't there been added lines like ``Copyright (C) 2000 FSF'' when
> the Hurd people changed these files?

1: We have never worried about the paper trail for Mach sources, because
it's like trying to nail jello to a tree.

2: We adopted the policy that we were not going to GPL our own work on
Mach because then it could be more easily shared with the rest of the

3: Most of our changes have been small enough that it's not clear that
we have a real claim to make.


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