Index: /issm/trunk-jpl/etc/environment.sh
===================================================================
--- /issm/trunk-jpl/etc/environment.sh	(revision 18219)
+++ /issm/trunk-jpl/etc/environment.sh	(revision 18220)
@@ -141,7 +141,7 @@
 	export BOOSTROOT
 	export BOOST_DIR
-	libpathappend   "$BOOST_DIR/lib"
-	dylibpathappend "$BOOST_DIR/lib"
-	pathappend      "$BOOST_DIR/bin"
+	libpathprepend   "$BOOST_DIR/lib"
+	dylibpathprepend "$BOOST_DIR/lib"
+	pathprepend      "$BOOST_DIR/bin"
 fi