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From: elg@usl (Eric Lee Green)
Newsgroups: comp.os.minix
Subject: Re: yacc and/or lex for minix?
Message-ID: <272@usl>
Date: Wed, 30-Sep-87 16:33:39 EDT
Article-I.D.: usl.272
Posted: Wed Sep 30 16:33:39 1987
Date-Received: Mon, 5-Oct-87 07:39:10 EDT
References: <477@bms-at.UUCP>
Organization: CACS, Univ of SW La, Lafayette, LA
Lines: 27

in article <477@bms-at.UUCP>, stuart@bms-at.UUCP (Stuart D. Gathman) says:
> The source for 'bison' is available free from GNU (Free Software
> Foundation).  Hopefully Austin is suppling binary and the $25 is
> a porting fee, otherwise they are violating the copyleft.

Read the copyleft again. As long as you provide the full source code
(including any porting modifications, which become property of the FSF
and thus come under the terms of the license), as well as the object
code, and do not attempt to prevent any further distribution, the GNU
licensing agreement allows you to charge everything you think the
market will bear. RMS mentions, either in the GNU Manifesto or the
licensing agreement, that there may spring up services which advertise
and duplicate GNU and charge a software fee for doing so, but as long
as they didn't consider GNU software to be proprietary and attempt to
restrict distribution, or remove his copyright notices/license
agreements, that was fine with him...

To recap: The "free" in "Free Software Foundation" means that you are
free to do anything you want with the software, with the understanding
that you must provide full sources (including any modifications), you
cannot in any way attempt to restrict further redistribution, and you
cannot remove FSF's notices.

--
Eric Green  elg@usl.CSNET       from BEYOND nowhere:
{ihnp4,cbosgd}!killer!elg,      P.O. Box 92191, Lafayette, LA 70509
{akgua,killer}!usl!elg        "there's someone in my head, but it's not me.ing