--- conf/cpto.orig	1994-09-15 22:42:45.000000000 +0200
+++ conf/cpto	2013-12-18 11:12:51.000000000 +0100
@@ -21,7 +21,7 @@
 0|1)	echo "Usage: $0 dir file ..." >&2 ; exit 2	;;
 esac
 
-dest="$1"
+dest="${DESTDIR}$1"
 shift
 if test ! -d "$dest"
 then