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Date: Mon, 07 Jul 2008 11:49:44 -0400
From: Mike Edenfield <kutulu@kutulu.org>
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Subject: Re: [gentoo-user] on cdr{kit,tools} and licensing (was: emerge -avC
 cdrkit && emerge -av cdrtools)
References: <486F599D.4090606@konstantinhansen.de> <200807061729.47921.alan.mckinnon@gmail.com> <4870f116.QK7RcdN+vW0tJtGN%Joerg.Schilling@fokus.fraunhofer.de> <200807062035.21483.alan.mckinnon@gmail.com> <48711a2e.ubKRGLogmitzpet1%Joerg.Schilling@fokus.fraunhofer.de> <48714198.5000406@paradise.net.nz> <4871def1.srqmLwgcR5gyNF+P%Joerg.Schilling@fokus.fraunhofer.de> <6142e6140807070337j6489758fn2194ad2050d4cb4c@mail.gmail.com> <48722bc0.PwfyibHt0tjungCs%Joerg.Schilling@fokus.fraunhofer.de>
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Joerg Schilling wrote:

> They claimed that the official build system was not legal but they replaced it
> with a build system that definitely is not legal because it is not included in 
> the source.

You keep saying this, but I just don't see where it's coming from.

Firstly, the cdrkit source ships with all of the cmake scripts that are 
needed by cmake to build the project.  This is all that is required by 
the GPL.

And before you tell me to "look again" or "go read something" or 
whatever -- I did.  I have the cdrkit source tarball right here, and I'm 
looking at the files in question.  I also have a copy of the GPL, which 
says exactly this: "plus the scripts used to control compilation and 
installation of the executable".  Note there is no requirement that the 
actual *build tools* be included, only the scripts used to control them. 
  Otherwise it would be illegal to ship any GPL'd program without the 
entire source to make, gcc, binutils, sed, awk, cat, etc.

Secondly, even if they were required to include cmake in the cdrkit 
package, they can legally ship cmake and cdrkit in a single package 
under the GPL -- the modified BSD license allows this exact combination. 
  They don't do this because they don't *need* to, but if they did need 
to, it would be perfectly legitimate.

I may not be convinced of truth of their argument that cdrtools has 
licensing issues.  That depends entirely on where you draw the line 
between a compilation, which is a derivative work under copyright law, 
and a mere aggregation, which is not.  But I *am* absolutely convinced 
that your counter-argument about cdrkit is absolutely false.

--K
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