--- Makefile.orig	2002-08-09 22:29:24.000000000 +0800
+++ Makefile	2013-11-08 21:22:16.000000000 +0800
@@ -1,8 +1,8 @@
 # $Id: Makefile,v 1.15 2002/08/09 14:29:24 bsd Exp $
 
 PREFIX  ?= /usr/local
-BINDIR  = ${PREFIX}/bin
-LIBDIR  = ${PREFIX}/share/cdroot
+BINDIR  = ${DESTDIR}${PREFIX}/bin
+LIBDIR  = ${DESTDIR}${PREFIX}/share/cdroot
 
 all : mkcdroot.inst