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Date: Mon, 21 Apr 2008 23:05:42 +0400
From: Andrew Pantyukhin <infofarmer@FreeBSD.org>
To: Brooks Davis <brooks@freebsd.org>
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Cc: ports@freebsd.org, Mikhail Teterin <mi+mill@aldan.algebra.com>
Subject: Re: lzma (Re: HEADS UP: upgrading ImageMagick to 6.4.0-6)
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On Tue, Apr 15, 2008 at 10:07:54PM -0500, Brooks Davis wrote:
> On Tue, Apr 15, 2008 at 10:35:30PM -0400, Mikhail Teterin wrote:
> > ???????? 15 ??????? 2008 10:21 ??, Brooks Davis ?? ????????:
> > > Sadly, the author's licensing terms will limit the adoption of lzma.
> > > The BSD license is well established as the most restrictive acceptable
> > > license for successful, widely adopted compression schemes.
> 
> I wouldn't necessicairly be opposed to seeing support for tar.lzma files
> in bsd.port.mk, but I don't think lzma has a signficant future if the
> licensing policy remains as is (i.e. complex and not clearly defined in
> the source files).

== qouth lzma.txt ==
SPECIAL EXCEPTION #3: Igor Pavlov, as the author of this code,
expressly permits
 
 you to use code of the following files: 
 BranchTypes.h, LzmaTypes.h, LzmaTest.c, LzmaStateTest.c,
 LzmaAlone.cpp, 
 LzmaAlone.cs, LzmaAlone.java
 as public domain code. 
====================

Without a more careful look, it sounds like enough to integrate
lzma in libarchive.