ANSI C preprocessor

[Guy Harris]

> The System V.2 preprocessor has the #elif construct (which is where it came
> from).

Somehow, I don't think so:

	Script started on Fri Oct  4 22:20:57 1985
	gorodish$ cd /arch/s5r2/usr/src/cmd/cpp
	gorodish$ egrep ppsym cpp.c
	ppsym( s )              /* kludge */
	        defloc = ppsym( "define" );
	        udfloc = ppsym( "undef" );
	        incloc = ppsym( "include" );
	        elsloc = ppsym( "else" );
	        eifloc = ppsym( "endif" );
	        ifdloc = ppsym( "ifdef" );
	        ifnloc = ppsym( "ifndef" );
	        ifloc = ppsym( "if" );
	        lneloc = ppsym( "line" );
	        clsloc = ppsym( "class" );
	        idtloc = ppsym( "ident" );
	gorodish$ 

That's the VAX System V Release 2 (Version 1) distribution.  Maybe it's in
S5R2V2, or 3B S5R2V?, or whatever - it sure as heck ain't in the VAX S5R2V1
distribution.

	Guy Harris