join(1) is used by lorder, add it to build-tools. (otherwise, things get

ugly when an a.out /usr/bin/join sees the elf LD_LIBRARY_PATH from a
'make world' and it's a.out ld.so tries to load the elf libc.so.)

Makefile

@@ -1,5 +1,5 @@
 #
-#	$Id: Makefile,v 1.200 1998/06/07 10:50:28 sos Exp $
+#	$Id: Makefile,v 1.201 1998/06/09 07:19:13 bde Exp $
 #
 # While porting to the another architecture include the bootstrap instead
 # of the normal build.
@@ -778,6 +778,7 @@ build-tools:
 		usr.bin/find		\
 		usr.bin/gencat		\
 		usr.bin/id		\
+		usr.bin/join		\
 		usr.bin/lorder		\
 		usr.bin/m4		\
 		usr.bin/mkdep		\