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Article #1416

Re^2: Why do people want PD software?

#1416
From: Tom Lane
Date: Tue, 01 Sep 1992 01:14
36 lines
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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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
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