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To: Daniel Hazelton <dhazelton@enter.net>
Cc: Paul Mundt <lethal@linux-sh.org>,
       Linus Torvalds <torvalds@linux-foundation.org>,
       Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
       Greg KH <greg@kroah.com>, debian developer <debiandev@gmail.com>,
       "david\@lang.hm" <david@lang.hm>, Tarkan Erimer <tarkan@netone.net.tr>,
       linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>,
       mingo@elte.hu
Subject: Re: Dual-Licensing Linux Kernel with GPL V2 and GPL V3
References: <Pine.LNX.4.64.0706100150080.6675@asgard.lang.hm>
	<200706141617.46734.dhazelton@enter.net>
	<or645q9qgw.fsf@oliva.athome.lsd.ic.unicamp.br>
	<200706142100.33478.dhazelton@enter.net>
From: Alexandre Oliva <aoliva@redhat.com>
Organization: Red Hat OS Tools Group
Date: Thu, 14 Jun 2007 23:42:05 -0300
In-Reply-To: <200706142100.33478.dhazelton@enter.net> (Daniel Hazelton's message of "Thu\, 14 Jun 2007 21\:00\:33 -0400")
Message-ID: <orodji5476.fsf@oliva.athome.lsd.ic.unicamp.br>
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On Jun 14, 2007, Daniel Hazelton <dhazelton@enter.net> wrote:

> On Thursday 14 June 2007 17:27:27 Alexandre Oliva wrote:
>> On Jun 14, 2007, Daniel Hazelton <dhazelton@enter.net> wrote:
>> > <somewhat sarcastic>
>> > And the companies that produce devices that come with Linux and/or
>> > other GPL'd software installed and place limits such that only
>> > people that have purchased that hardware have access to the
>> > "modified" source running on the device are following the letter,
>> > and the spirit, of the GPL.
>> 
>> WAIT, WAIT, THAT'S... :-)
>> 
>> > Before you start yelling I'm wrong, think about it this way: they
>> > make the source available to the people that they've given binary
>> > versions to, and there is nothing stopping one of those people from
>> > making the source available to the rest of the world.
>> 
>> The *only* in your sentence betrayed you.
>> 
>> If they place the limits such that nobody else can access the sources,
>> they're in violation of the license.

> Nope. There is *NO* requirement *ANYWHERE* in the GPL, no matter the version, 
> that says you have to *DISTRIBUTE* the source to *ANYONE* except those that 
> you have given a binary to. Go read the licenses.

I agree.  I even said so.

But the *only* gave me the impression that you were talking about
magic, or any other sufficiently advanced technology ;-), that would
enable the recipients to get the source code, but not usefully pass it
on.

> That is *EXACTLY* what a number of companies have done - Acer (yes,
> the laptop company) has done that. They sell laptops running Linux,
> but unless you have purchased one of them you can't download the
> sources (or even replacement binaries) for the version of linux they
> put on their machines. (From Acer, that is)

That's the sort of stuff that breaks the tit-for-tat premise.  GPL
indeed is not concerned about tit-for-tat.  It's concerned about
respect for the freedoms.

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
FSF Latin America Board Member         http://www.fsfla.org/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}
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