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Date:      Tue, 15 Jun 1999 21:19:43 +0000 (GMT)
From:      Terry Lambert <tlambert@primenet.com>
To:        des@flood.ping.uio.no (Dag-Erling Smorgrav)
Cc:        davids@webmaster.com, des@flood.ping.uio.no, unknown@riverstyx.net, dkelly@hiwaay.net, morten@seeberg.dk, freebsd-chat@FreeBSD.ORG
Subject:   Re: SGI Donated Journalised FS Source to Linux
Message-ID:  <199906152119.OAA23401@usr01.primenet.com>
In-Reply-To: <xzplndnf82j.fsf@flood.ping.uio.no> from "Dag-Erling Smorgrav" at Jun 14, 99 11:24:52 am

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> You've totally missed the point. Linux is under GPL. The GPL forbids
> linking GPLed software with non-GPLed software. SGI can't develop XFS
> for Linux without using Linux, and to use Linux they have to agree to
> the terms of its license, which forbids them to release software that
> links with Linux except under the GPL.

This does not apply to runtime linking, as employed by kernel modules.

Read the Linux License terms specifically.

Caldera ships a number of binary-only modules in support of the
NetWare for UNIX server on Linux (I know; I worked on that code
at Novell, and I worked with the guys who formed Caldera before
they left to form it, and I worked with the guy who later did
the NWU port to Linux).

Kernel modules are allowed to treat the kernel as if it were an
LGPL'ed shared library.


Now the LGPL doesn't explictly acknowledge dynamic linking, but
that's not really an issue for anything but standard shared
libraries containing agregate initialized non zero-fill-BSS data.


					Terry Lambert
					terry@lambert.org
---
Any opinions in this posting are my own and not those of my present
or previous employers.


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