Index: /issm/trunk/externalpackages/matlab/install.sh
===================================================================
--- /issm/trunk/externalpackages/matlab/install.sh	(revision 3602)
+++ /issm/trunk/externalpackages/matlab/install.sh	(revision 3603)
@@ -9,2 +9,8 @@
 #symlink matlab to root matlab
 ln -s /usr/local/pkgs/matlab-$MATLAB_VERSION/ install
+
+#initialize MATLAB_VERSION in etc/environment_variables
+cat $ISSM_DIR/etc/environment_variables.sh | sed -e "/MATLAB_VERSION/d" | sed "/^MATLAB_DIR.*$/a\MATLAB_VERSION=$MATLAB_VERSION" >  $ISSM_DIR/etc/environment_variables.sh.bak
+mv $ISSM_DIR/etc/environment_variables.sh.bak $ISSM_DIR/etc/environment_variables.sh
+cat $ISSM_DIR/etc/environment_variables.csh | sed -e "/MATLAB_VERSION/d" | sed "/^set MATLAB_DIR.*$/a\set MATLAB_VERSION=$MATLAB_VERSION" >  $ISSM_DIR/etc/environment_variables.csh.bak
+mv $ISSM_DIR/etc/environment_variables.csh.bak $ISSM_DIR/etc/environment_variables.csh