From: Ville Muikkula <vmuikkul AT ratol DOT fi>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Is PMODE/DJ Free Software?
Date: Thu, 27 Jun 2002 16:10:55 +0000 (UTC)
Organization: Oulu Polytechnic, Computing Centre
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References: <afctgd$723$1 AT pan DOT oamk DOT fi> <3d1a87f4 DOT sandmann AT clio DOT rice DOT edu>
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Charles Sandmann <sandmann AT clio DOT rice DOT edu> wrote:

> Feel confident you can bind either the stub or use the TSR without 
> legal issues, as long as you use the distributed binaries (and bind 
> something of consequence - an application).

  The situation is as follows: I would like to experiment with the 
Automatic EOI mode of the PC interrupt controller. This would require 
modifications into the DPMI provider and would make the application 
completely dependent on the particular DOS extender. Currently the 
application in question, 1541EMU (http://members.surfeu.fi/1541) uses 
unmodified CWSDPR0, but I have read that PMODE/DJ has lower hardware 
interrupt handling overhead, so from a purely technical viepoint maybe it 
should be used instead. But GPL'd software can't depend on non-free, 
GPL-incompatible software.