[Xen-users] Re: Does it legal to analysize XEN source code and write a book about it ?

["AD." <anton.list@xxxxxxxxx>]

Tim Post wrote:
> First, Xen is free software. While it is licensed under the GNU GPL
> License,
> it is free software. Please stop calling it open source. "Open Source"
> is a 
> misnomer. For a program to be free, its source is already considered to
> be 
> "Open", but that is just one requisite. To also be free, you must be
> able to
> copy it, share it, package it and sell it yourself.
>
> Some programs are open source but not free, many of them Microsoft
> programs.
> They have a developer network where members get a new set of CD's every
> quarter
> with new goodies on them that have source code included. This is open
> source, 
> not free. You can't share those programs or their source code, if you
> improve the 
> code the only people you can share your imrpovements with is Microsoft.
Tim, while I agree with everything else you posted, your definition of 
"open source" doesn't match my understanding. Open source doesn't just 
mean that you can look at the source code.
That MS example you cited wouldn't be open source, as open source also 
requires that you are able to "copy it, share it, package it and sell it 
yourself".
http://www.opensource.org/docs/definition.php

The MS license you mention (there are others) is what they call "shared 
source". As far as I'm aware, no MS license has been approved by the OSI 
yet.
--
Cheers
Anton


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