Use the QVM build toolchain from ioq3

code/tools/lcc/cpp/cpp.c

@@ -9,7 +9,7 @@ char rcsid[] = "cpp.c - faked rcsid";
 
 #define	OUTS	16384
 char	outbuf[OUTS];
-char	*outp = outbuf;
+char	*outbufp = outbuf;
 Source	*cursource;
 int	nerrs;
 struct	token nltoken = { NL, 0, 0, 0, 1, (uchar*)"\n" };
@@ -19,6 +19,15 @@ int	ifdepth;
 int	ifsatisfied[NIF];
 int	skipping;
 
+time_t reproducible_time()
+{
+	char *source_date_epoch;
+	time_t t;
+	if ((source_date_epoch = getenv("SOURCE_DATE_EPOCH")) == NULL ||
+		(t = (time_t)strtol(source_date_epoch, NULL, 10)) <= 0)
+		return time(NULL);
+	return t;
+}
 
 int
 main(int argc, char **argv)
@@ -28,7 +37,7 @@ main(int argc, char **argv)
 	char ebuf[BUFSIZ];
 
 	setbuf(stderr, ebuf);
-	t = time(NULL);
+	t = reproducible_time();
 	curtime = ctime(&t);
 	maketokenrow(3, &tr);
 	expandlex();
@@ -51,7 +60,7 @@ process(Tokenrow *trp)
 	for (;;) {
 		if (trp->tp >= trp->lp) {
 			trp->tp = trp->lp = trp->bp;
-			outp = outbuf;
+			outbufp = outbuf;
 			anymacros |= gettokens(trp, 1);
 			trp->tp = trp->bp;
 		}
@@ -250,7 +259,6 @@ control(Tokenrow *trp)
 		break;
 	}
 	setempty(trp);
-	return;
 }
 
 void *