diff --git a/handbook/ports.sgml b/handbook/ports.sgml
index 5991603e02..5321f51d62 100644
--- a/handbook/ports.sgml
+++ b/handbook/ports.sgml
@@ -1,4 +1,4 @@
-<!-- $Id: ports.sgml,v 1.33 1998-11-07 11:50:45 asami Exp $ -->
+<!-- $Id: ports.sgml,v 1.34 1998-12-12 07:08:16 asami Exp $ -->
 <!-- The FreeBSD Documentation Project -->
 
 <chapt><heading>Installing Applications: The Ports collection<label id="ports"></heading>
@@ -192,6 +192,20 @@ to build ports just as you normally do and the port collection's built
 in search path should find the tarballs in file:/cdrom/ports/distfiles/
 (if they exist there) rather than downloading them over the net.
 
+<p>
+Another way of doing this, if you want to just use the port skeletons
+on the CDROM,  is to set these variables in <tt>/etc/make.conf</tt>:
+<tscreen><verb>
+PORTSDIR=     /cdrom/ports
+DISTDIR=      /tmp/distfiles
+WRKDIRPREFIX= /tmp
+</verb></tscreen>
+(substitute "/tmp" for any place you have enough free space).  Then,
+just cd to the appropriate subdirectory under "/cdrom/ports" and type
+"make install" as usual.  <tt/WRKDIRPREFIX/ will cause the port to be
+built under /tmp/cdrom/ports; for instance, games/oneko will be built
+under /tmp/cdrom/ports/games/oneko.
+
 <p>
 Note that there are some ports for which we cannot provide the original
 source in the CDROM due to licensing limitations.  In that case,
@@ -290,7 +304,7 @@ installed. Here is the Makefile for ElectricFence:-
 # Date created: 	13 November 1997
 # Whom:			jraynard
 #
-# $Id: ports.sgml,v 1.33 1998-11-07 11:50:45 asami Exp $
+# $Id: ports.sgml,v 1.34 1998-12-12 07:08:16 asami Exp $
 #
 
 DISTNAME=	ElectricFence-2.0.5