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From: gwyn@brl-smoke.UUCP
Newsgroups: comp.lang.c
Subject: Re: Preprocessor Portability
Message-ID: <6665@brl-smoke.ARPA>
Date: Thu, 12-Nov-87 10:04:00 EST
Article-I.D.: brl-smok.6665
Posted: Thu Nov 12 10:04:00 1987
Date-Received: Sat, 14-Nov-87 14:59:19 EST
References: <1986@killer.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 6

In article <1986@killer.UUCP> chip@killer.UUCP (Chip Rosenthal) writes:
-A question on cpp:  how portable are "#elif" and "defined()"?  Although
-they aren't in K&R, I don't recall working on a system which doesn't
-have them.

#elif was not supported in 4.2BSD nor UNIX System V Release 2.0.