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From: randy@peora.UUCP
Newsgroups: comp.sources.d
Subject: Re: Copyright status of Ctex and Common-Tex: whose copyright ???
Message-ID: <2628@peora.ccur.com>
Date: Tue, 29-Sep-87 16:07:59 EDT
Article-I.D.: peora.2628
Posted: Tue Sep 29 16:07:59 1987
Date-Received: Sat, 3-Oct-87 08:18:28 EDT
References: <167@yetti.UUCP> <4760@ncoast.UUCP>
Organization: Concurrent Computer Corporation, Orlando, Fl
Lines: 23

In article <4760@ncoast.UUCP>, allbery@ncoast.UUCP (Brandon Allbery) writes:
- As quoted from <167@yetti.UUCP> by oz@yetti.UUCP (Ozan Yigit):

-|% This program is copyright (C) 1982 by D. E. Knuth; all rights are reserved.
-|% Copying of this file is authorized only if (1) you are D. E. Knuth, or if
-|% (2) you make absolutely no changes to your copy.
...
-| One lawyer, Jordan J. Breslow, did address the issue of "derivative works"
...
-| He indicates that the translation of, say a copyrighted
-| COBOL program to BASIC would be the infringement of the copyright owner's
-| exclusive right to make derivative works.
- 
- As I read this, this means that I cannot get a copy of TeX from the U. of
- Washington (presumably the original Pascal version straqight from Don Knuth)
- and run it through p2c, even for my own use.

Does this mean a compiler violates copyright every time it generates
an intermediate (or assembly) language?  Does it matter is the intermediate
is stored on disk?  I think that using p2c could be viewed just as another
"compiling" step.  Now, if you started modifying your C source you'd
probably be creating a derivative work.