From h.wickham at gmail.com  Thu Nov  6 15:46:43 2014
From: h.wickham at gmail.com (Hadley Wickham)
Date: Thu, 6 Nov 2014 08:46:43 -0600
Subject: [Rd] Citation if copying R base code
In-Reply-To: <545B5D4A.1060105@gmail.com>
References: <545B5430.2030403@gmail.com> <545B5D4A.1060105@gmail.com>
Message-ID: <CABdHhvEdsAxhtE7P6GcBa=C6FpxAAf8pHANavfytQk=vXuhfiQ@mail.gmail.com>

>> And if yes how to do it best? What is the standard procedure here?
>> Should I include base package authors as contributors in DESCRIPTION???
>>
>> Am I allowed to use MIT + file license with that or is it wrong to do so?
>
> No, you must use the GPL, since the code you copied is licensed under
> the GPL.  You can choose to use version 2 or 3 (or both).  You do not
> have permission to re-license R code under a different license.

I think it's slightly murkier than that - MIT is GPL compatible, so
you could license the code you've written as MIT, but the package as a
whole would need to be GPL-2/3.

Hadley

-- 
http://had.co.nz/



[Rd] Citation if copying R base code
Hadley Wickham