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Re: [GNU-linux-libre] [libreplanet-discuss] programming language package
From: |
Richard Stallman |
Subject: |
Re: [GNU-linux-libre] [libreplanet-discuss] programming language package manager |
Date: |
Fri, 06 May 2016 15:19:05 -0400 |
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> Yes, but I should mention some limitations in the license information
> recorded in Guix. We associate with each package a list of licenses,
> but we do not distinguish between the following cases:
> * Recipients who wish to redistribute may choose to follow the terms of
> one license from a set of options.
It is very important to indicate such disjunctions explicitly.
> * Recipients who wish to redistribute must follow the terms of all of
> a set of licenses.
Do you mean, a conjunction of licenses for the same code?
I don't know if that ever happens in a way that matters.
Can you show us a real case of this?
> * Some code in the program is covered by license A, other code is
> covered by license B, etc.
This is quite common. I urge you to state explicitly that this
is the relationship between the licenses.
We could call this a "separate licensing" or "heterogeneous
licensing".
> We sometimes include a comment in the Guix source code to disambiguate
> between these cases, and also to include details such as additional
> permissions, but these details are not so easily extracted.
Indeed, that is not a very helpful way to record the information.
I recommend using | for a disjunction, & for a conjunction (if that ever
happens in a significant way), and comma for heterogeneous licensing.
Comma would have lower precedence. Thus, it could be
Plus could indicate added special terms.
LGPL, GPL | Artistic, GPL + added permission
if there are three components.
Ok?
--
Dr Richard Stallman
President, Free Software Foundation (gnu.org, fsf.org)
Internet Hall-of-Famer (internethalloffame.org)
Skype: No way! See stallman.org/skype.html.