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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: guix-devel@gnu.org Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org Sender: "Guix-devel" X-Migadu-Flow: FLOW_IN ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1619383845; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:list-id:list-help: list-unsubscribe:list-subscribe:list-post:dkim-signature; bh=cyhqC/uwTQ+ep8PqVRFSV3Utve5hw6P/8etimJHuwPU=; b=njTIODCvI3ZDVqrUUo2IrvdTD1/2l3+dzbgjaHU17PabdZ9QyUBzVId7ZSTxTHvkKXU+ai XWCdJUYe3a/1f5iauLS4X8moQ4tKIIE9+OygwXB83ktaTlIaOLN8vAnWDW2P0fdyI0HAsa Aq+zkHZjPess7sWGBss5qXPACs3loPqdSn+xrK0ZDXLwxWltrxcA+WvtyaYg9JTly4qQvn 8vB50rgWFT4CQoz+TbL+mnCSIqJThllJBKOyo8vSaMaiXwPLX6BxoXsf+OpMCF6CRX7GqK 7Yjyt+jmzzeS4Z9Yedlt6oq1u+CUjtG1zVOOijV58Q+2Ijm2BTgz6V2YkCoY/g== ARC-Seal: i=2; s=key1; d=yhetil.org; t=1619383845; a=rsa-sha256; cv=fail; b=gRlWQnThqhOVqxQPJm56/U7V9Y6VekUQKKfO0mukOn9a1itlI8fjcKuEZWWjTzfd++YmDp np7qHCnCXVLvu6HPmB2Tm6DT/jk37J1HfTFZXDygsC7jQp4yrTeksf7ykea+0mZ7OB3Aqw 8rPs6TjdT69h00w3+HOw4ObUBOV9DmkEapDv1UHlevz+Gq80J5lVoXCOo27+Teur38lbCU f2PFX/zzRcoseHBBBpSoB36DM6qsp4wBuSrm31w9vukCh2ZVFSKEvQMhrgLTkNlCvMfomY x8nGnUy2def41vybJ+M8TykgbvjEKfS6te8pY+tYtghRfYHBighGJJZnD2KQSw== ARC-Authentication-Results: i=2; aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=elephly.net header.s=zoho header.b="N72CS/7G"; arc=reject ("signature check failed: fail, {[1] = sig:zohomail.com:reject}"); dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Spam-Score: 1.55 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=elephly.net header.s=zoho header.b="N72CS/7G"; arc=reject ("signature check failed: fail, {[1] = sig:zohomail.com:reject}"); dmarc=none; spf=pass (aspmx1.migadu.com: domain of guix-devel-bounces@gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=guix-devel-bounces@gnu.org X-Migadu-Queue-Id: 0145A25583 X-Spam-Score: 1.55 X-Migadu-Scanner: scn0.migadu.com X-TUID: MZWrkoeIJskl Vagrant Cascadian writes: > On 2021-04-25, Jack Hill wrote: >> I'm working on packaging the Argyll Color Management System for=20 >> Guix. To=20 >> build, it uses the Jam tool, which has the following license: >> >> ``` >> This is Release 2.5 of Jam, a make-like program. >> >> License is hereby granted to use this software and distribute=20 >> it >> freely, as long as this copyright notice is retained and=20 >> modifications >> are clearly marked. >> >> ALL WARRANTIES ARE HEREBY DISCLAIMED. >> ``` > > Permission to use, check. > Permission to study, probably(?) > Permission to share, check. > Permission to modify, .... ? > > Is it even free software? There is no mention of modification=20 > which > doesn't appear to be free by my layman's reading... > > > Which brings up an ugly bag of worms regarding boost... The jam build system in boost is also licensed under the Boost=20 license: The build system source is under tools/build/src/engine/, and the=20 jam.cpp file has these notes: --8<---------------cut here---------------start------------->8--- /* * /+\ * +\ Copyright 1993-2002 Christopher Seiwald and Perforce=20 Software, Inc. * \+/ * * This file is part of jam. * * License is hereby granted to use this software and distribute=20 it freely, as * long as this copyright notice is retained and modifications are=20 clearly * marked. * * ALL WARRANTIES ARE HEREBY DISCLAIMED. */ /* This file is ALSO: * Copyright 2001-2004 David Abrahams. * Copyright 2018 Rene Rivera * Distributed under the Boost Software License, Version 1.0. * (See accompanying file LICENSE_1_0.txt or copy at * http://www.boost.org/LICENSE_1_0.txt) */ --8<---------------cut here---------------end--------------->8--- FWIW I consider the Jam license to be free; it does mention=20 modifications and only asks that they are =E2=80=9Cclearly marked=E2=80=9D= =20 (whatever that means). It=E2=80=99s much saner than the LaTeX license=20 that asks that any modified file be renamed; it is only acceptable=20 to the FSF license team because TeX has an aliasing mechanism, so=20 it=E2=80=99s not a practical obstacle, merely a serious annoyance. --=20 Ricardo