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From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCH] gnu: Add mtd-utils.
Date: Fri, 02 Sep 2016 14:49:27 +0200
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In-Reply-To: <877fau4u0l.fsf@gmail.com> (Alex Kost's message of "Fri, 02 Sep
	2016 10:53:46 +0300")
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To: Alex Kost <alezost@gmail.com>
Cc: guix-devel@gnu.org

Alex Kost <alezost@gmail.com> skribis:

> Ludovic Court=C3=A8s (2016-09-01 15:13 +0300) wrote:
>
>> Danny Milosavljevic <dannym@scratchpost.org> skribis:
>>
>>> On Wed, 31 Aug 2016 22:59:11 +0200
>>> ludo@gnu.org (Ludovic Court=C3=A8s) wrote:
>>>
>>>> Are there GPLv2 license headers that lack the =E2=80=9Cor any later ve=
rsion=E2=80=9D
>>>> wording, or anything that explicitly says =E2=80=9Cversion 2 only=E2=
=80=9D?  If not,
>>>> it=E2=80=99s v2-or-later.
>>
>> [...]
>>
>>> ./mkfs.ubifs/crc16.h: ' * Implements the standard CRC-16: * Width 16 *
>>> Poly 0x8005 ( x^16 + x^15 + x^2 + 1 ) * Init 0 * * Copyright ( c )
>>> 2005 Ben Gardner <bgardner@wabtec.com> * * This code was taken from
>>> the linux kernel. The license is GPL Version 2.  '
>>
>> OK, GPLv2-only!
>
> Wait, why?  There are files that have a full license headers with "or
> any later version", for example "docfdisk.c", "flash_erase.c" and
> others.  That's why I thought both gpl2 and gpl2+ should be listed.

But they are combined, so the combined work, which is what we (should)
care about, is =E2=80=98gpl2=E2=80=99.

At least that=E2=80=99s how I usually do it, but I agree that this is an
undocumented convention that=E2=80=99s probably not unanimously followed.

Ludo=E2=80=99.