Added -mno-486 to CFLAGS to force smaller code in case someone compiles

with CC="cc -m486".  This doesn't fix PR2381, since PR2381 is for 2.1.x.

sys/i386/boot/biosboot/Makefile

@@ -1,4 +1,4 @@
-#	$Id$
+#	$Id: Makefile,v 1.54 1997/02/22 09:30:00 peter Exp $
 #
 
 PROG=	boot
@@ -9,6 +9,7 @@ SRCS+=  probe_keyboard.c io.c disk.c sys.c
 BINDIR=		/usr/mdec
 BINMODE=	444
 CFLAGS=		-O2 -malign-functions=0 -malign-jumps=0 -malign-loops=0 \
+		-mno-486 \
 		-DDO_BAD144 -DBOOTWAIT=${BOOTWAIT} -DTIMEOUT=${TIMEOUT}
 CFLAGS+=	-DBOOTSEG=${BOOTSEG} -DBOOTSTACK=${BOOTSTACK}
 CFLAGS+=	-I${.CURDIR}/../../..