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From: gwyn@brl-tgr.ARPA (Doug Gwyn <gwyn>)
Newsgroups: net.lang.c
Subject: Re:  ANSI C preprocessor
Message-ID: <2069@brl-tgr.ARPA>
Date: Fri, 11-Oct-85 19:10:33 EDT
Article-I.D.: brl-tgr.2069
Posted: Fri Oct 11 19:10:33 1985
Date-Received: Mon, 14-Oct-85 03:31:20 EDT
References: <1918@brl-tgr.ARPA> <209@rtp47.UUCP>
Organization: Ballistic Research Lab
Lines: 6

The answer seems to be, #elif is in some releases of UNIX System V
and not in others.  It is now in BRL's System V emulation; copies
available to SVR2-licensed recipients that I already have on file.

Warning to anyone thinking of adding #elif to the Reiser CPP:
You need to record more state than `trulvl' and `flslvl'.