License for written documentation



--- Robert Dodier  wrote:

> That said, I would like for us to specify a license for
> texts other than the manual. At present that comprises
> the web site text, some tutorial papers, the wiki site,
> the Maxima book, and maybe some other texts.
> 
> Applying any given license to future authors is relatively
> easy: we just make them agree to a disclaimer of the
> form "I agree that my contribution is licensed under
> license X".  Slightly more difficult is to locate all authors
> of existing material and get them to agree to some license.

There were some questions about that concerning Maximabook recently,
actually.

For myself, you are free to release my part of the content under any
license you see fit.  I cannot speak for the other authors.
 
> I will suggest a few possible licenses: GNU Public License,
> GNU Free Documentation License, Creative Commons
> Share-Alike License. There are many others. I won't make
> a recommendation at this time except to recommend
> against releasing texts into the public domain.

I looked at this a while back, and the license I settled on as my
favorite in this case was the Apple Common Documentation License: 
http://www.opensource.apple.com/cdl/  I like this one because a) it
seems the most GPL like of licenses created specifically for text
content and b) it's written by Apple, so presumably they hired Real
Lawyers to get it right.  I recommend against the GFDL, since its
invariant clause causes no end of trouble and IIRC is actually rejected
as a free license by the Debian project.

CY

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