Re: GPLv3 Variants
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I agree that there could be many variants. Since we will not be able to interpret the additional terms in any clean fashion (including a certainty that an included term is or is not a “further restriction” that may be removed), I suggest that:
1. We leave GPL v3 with additions out of the Rev-1 license list
2. In the event that we find a very frequently used GPL V3 with additions, perhaps we name it uniquely, for instance “GPL V3 Modified by [Organization] for [Component].
My logic on (1) initially leaving out and (2) naming uniquely when we must, is based on never having seen a GPL v3 with permitted additions. I do, however, travel in the commercial world – perhaps it is different in open source centric environment – is anyone aware of frequently used GPL v3 with permitted additions so we can consider this approach with a bit more data?
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From: spdx-bounces@... [mailto:spdx-bounces@...] On Behalf Of Radcliffe, Mark
Sent: Sunday, November 14, 2010 2:58 PM
Subject: GPLv3 Variants
I think that we need to take into account the fact that GPLv3 permits six "additional terms" (see below). Since they you could have many variants, perhaps the best approach is to have a category for "GPLv3 with Permitted Additions". I am open to other suggestions.
7. Additional Terms.
“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms.
Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
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