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From: jgm@k.gp.cs.cmu.edu (John Myers)
Newsgroups: comp.std.c
Subject: -DFOO
Message-ID: <4089@pt.cs.cmu.edu>
Date: 22 Jan 89 02:41:46 GMT
References: <9422@smoke.BRL.MIL> <9445@smoke.BRL.MIL> <9436@smoke.BRL.MIL> <12570003@hpclsue.HP.COM> <915@sfmin.UUCP>
Organization: Carnegie-Mellon University, CS/RI
Lines: 21

In article <915@sfmin.UUCP> dfp@attunix.att.com (Dave Prosser) writes:
>As a related issue, the cc command's -D and -U options do not render a
>compilation system nonconforming.  They are taken to be the equivalent
>series of #defines followed by a series of #undefs inserted just before
>the first line of the named source file(s).  They are explicitly provided
>by the application writer, and as such are not actually predefined macros.

One could similarly claim that a compilation system by default prepends a

#include <namespace_pollution.h>

to all source files, unless the "-nopollution" was given.  Therefore,
compilation system with namespace pollution could still be conforming.

One really can't distinguish between explicit action by the user and
explicit inaction.
-- 
_.John G. Myers		Internet: John.Myers@cs.cmu.edu
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