Index: /issm/trunk-jpl/etc/environment.sh
===================================================================
--- /issm/trunk-jpl/etc/environment.sh	(revision 18904)
+++ /issm/trunk-jpl/etc/environment.sh	(revision 18905)
@@ -71,4 +71,10 @@
 pathprepend   "$MATLAB_DIR/bin" #take precedence over /usr/local/bin/matlab
 libpathappend "$MATLAB_DIR/lib"
+
+#GMT 
+GMT_DIR="$ISSM_DIR/externalpackages/gmt/install"
+export GMT_DIR
+pathprepend   "$GMT_DIR/bin" 
+libpathappend "$GMT_DIR/lib"
 
 #legacy mpich2 (To be removed)