Article View: comp.sys.ibm.pc.misc
Article #1416Re^2: Why do people want PD software?
From: Tom Lane
Date: Tue, 01 Sep 1992 01:14
Date: Tue, 01 Sep 1992 01:14
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2571 bytes
peter@global.hacktic.nl (Peter Busser) writes: > rahardj@ccu.umanitoba.ca (Budi Rahardjo) writes: > >peter@global.hacktic.nl (Peter Busser) writes: > >>Why would anyone need PD and not freeware? > > >With PD, I can distribute the program and source as part of my own program > >without any problems. With freeware (most of the time) I still have to get > >the permission from the author to distribute his/her program & source code. > > You didn't read, I was explicitly talking about GNU software and software > with a GNU-ish copyleft, i.e. freeware. You don't need any permission to > distribute GNU(-ish) software either in source or binary form. The only > requirement is that you provide the changed sources to anyone who wants them > at a nominal cost. Peter, evidently *you* didn't read the GNU copyleft very carefully. If you use some GNU code in a program you write, the GNU General Public License effectively requires you to distribute the ENTIRE program under the GNU conditions. In particular, you have to give away, for free, *your* source code as well as theirs. (See their definition of "complete source code" if you don't believe me.) And if someone else uses what you've done in a bigger program, they become subject to the GPL as well. Some people who object to this restriction refer to the GPL as the General Public Virus because of its self-replicating properties. I have personally been involved in a free software project wherein we refrained from using any GNU code, simply because we wanted to use our distribution terms and not GNU's. There is a big difference between free software and PD software. For some purposes the difference does not matter; but claiming that it never matters merely shows your ignorance. regards, tom lane
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Path: arc1-ca.pugleaf.net!sparky!uunet!usc!rpi!uwm.edu!ogicse!das-news.harvard.edu!cantaloupe.srv.cs.cmu.edu!tgl From: tgl+@cs.cmu.edu (Tom Lane) Newsgroups: comp.sys.ibm.pc.misc,comp.os.msdos.apps,comp.binaries.ibm.pc.d Subject: Re^2: Why do people want PD software? Summary: GNU copyleft is restrictive Message-ID: <BtvKrK.2FM.2@cs.cmu.edu> Date: 1 Sep 92 01:14:07 GMT Article-I.D.: cs.BtvKrK.2FM.2 References: <bws.14@ccs.carleton.ca> <9LywPB1w165w@cybrspc.UUCP> <367@global.hacktic.nl> <1992Aug28.145404.17987@crd.ge.com> <3449@global.hacktic.nl> <1992Aug30.124845.23411@ccu.umanitoba.ca> <4158@global.hacktic.nl> Sender: news@cs.cmu.edu (Usenet News System) Organization: School of Computer Science, Carnegie Mellon Lines: 36 Nntp-Posting-Host: g.gp.cs.cmu.edu