Re: how about mutual compatibility between Linux's GPLv2 and GPLv3?

[Alexandre Oliva]

On Jun 21, 2007, "David Schwartz" <davids@xxxxxxxxxxxxx> wrote:

> Alexandre Oliva wrote:

>> However, if GPLv3 had a permission to combine/link with code under
>> GPLv2, *and* Linux (and any other projects interested in mutual
>> compatibility) introduced an additional permission to combine/link
>> with code under GPLv3 (or even GPLv3+, constrained by some condition
>> if you will), then:

> Wouldn't that defeat the entire purpose of the GPLv3? Couldn't I take any
> GPLv3 program, combine it with a few lines of Linux code, and Tivoize the
> result?

No.  This is not permission to relicense.  This is permission to
combine.  Each author still gets to enforce the terms of her own code.
So a tivoizer would have to take out the code licensed under the
GPLv3, and use only the code that permits tivoization.  Same as today,
but without the possibility of cooperation for licensees who don't
tivoize.

Sorry if this wasn't obvious, it was for me.

-- 
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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