--- bin/parallel_cp.orig	2011-12-20 13:33:00.000000000 +0100
+++ bin/parallel_cp	2012-01-02 22:01:50.000000000 +0100
@@ -17,13 +17,7 @@
 #    1 AVENUE DU GENERAL DE GAULLE, 92141 CLAMART CEDEX, FRANCE.
 # ==============================================================================
 
-set_prefix() {
-    local this=`readlink -n -f $1`
-    local bin=`dirname $this`
-    prefix=`dirname $bin`
-}
-
-set_prefix $0
+prefix=?ASTER_ROOT?
 
 ASTER_ROOT=$prefix
 ASTER_ETC=$ASTER_ROOT/etc