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Re: Relicensing Emacs to GPLv3

From: Alexandre Vassalotti
Subject: Re: Relicensing Emacs to GPLv3
Date: Wed, 27 Jun 2007 20:10:11 -0400

On 6/26/07, Richard Stallman <address@hidden> wrote:
We will want to move Emacs to GPL version 3 soon after that comes out.
First we need to check the licenses of the various libraries (other
than libc) that Emacs links with, and make sure that they are
compatible with GPL version 3.

If some libraries are incompatible, that won't prevent the upgrade,
but we need to know about them in order to do the upgrade properly.

Would someone please volunteer to check this?

I did a quick search for files that don't include "either version 2,
or (at your option) any later version." The only ones have found were
either 1) in the public domain, 2) automatically generated, or 3)
without the standard license header (but, these are all copyrighted by
the Free Software Foundation).

That is the commands I used for my quick search:

 $ find -name *.c -or -name *.el -print > all
 $ find -name *.c -or -name *.el -print0 | xargs -0 grep -l "version
2, or" > license.ok
 $ for f in `diff -u all license.ok | body -s2 | grep "^-" | sed 's/^-//'`
do less $f; done

I hope that helps,
-- Alexandre

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