[Rd] R license: GPL v2 or v3?

[Prof Brian Ripley]

On Tue, 18 Nov 2008, Gabriel Gellner wrote:

> For a project I am porting some of R's source code, and I want to
> get the license for my project correct, but the top level COPYING file
> for R's source states GPL v2, but when using:
>
>    > license()
>
> (which also states GPL version 2) points me towards:
>
>    > RShowDoc('COPYING')
>
> which states GPL v3. Which is correct?

It does not, at least in R 2.8.0 (and I am pretty sure in no version 
of R).  What exactly are you looking at?

Many files in R are licensed under GPL 2 or later, but not all.  All 
non-trivial source files should have a header giving the licence terms for 
that file.

>
> Thanks for clarification (and the amazing amount of code!).
>
> Gabriel
>
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-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
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