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Re: Should our documentation be free? (Was Re: Inconsistencies in our approach)

On Sun, 2003-08-03 at 11:36, Claus Färber wrote:
> Of course, someone can add another invariant section to the manual. But  
> this is actually a licence change, possibly making the new version of  
> the manual non-free (although it still uses the GFDL as a template for  
> its licence). This problem, however, exists in many free software  
> licences such as the BSD licence, etc.

If someone adds proprietary code to BSD-licensed code, however, you can
later extract the free code (assuming you have access to the code of the
now-proprietary program), and use it in something else. Once proprietary
(invariant) sections are added to something under the GFDL, that version
of the document is forever non-free, because they can't ever be removed.

A nice example of a viral license.
Joe Wreschnig <piman@debian.org>

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