mtree is a "bootstrap tool", don't use the fancy new world-breaking features

if we're building it as part of the bootstrap toolset.

usr.sbin/mtree/Makefile

@@ -1,5 +1,5 @@
 #	From: @(#)Makefile	8.1 (Berkeley) 6/6/93
-#	$Id: Makefile,v 1.6 1997/02/22 16:07:51 peter Exp $
+#	$Id: Makefile,v 1.7 1999/02/26 18:44:56 wollman Exp $
 
 PROG=	mtree
 SRCS=	compare.c crc.c create.c misc.c mtree.c spec.c verify.c
@@ -8,6 +8,10 @@ MAN8=	mtree.8
 
 DPADD+=	${LIBMD}
 LDADD+=	-lmd
-CFLAGS+= -DMD5 -DSHA1 -DRMD160
+CFLAGS+= -DMD5
+
+.if !defined(WORLD)
+CFLAGS+= -DSHA1 -DRMD160
+.endif
 
 .include <bsd.prog.mk>