Index: /issm/trunk-jpl/externalpackages/matlab/install.sh
===================================================================
--- /issm/trunk-jpl/externalpackages/matlab/install.sh	(revision 15097)
+++ /issm/trunk-jpl/externalpackages/matlab/install.sh	(revision 15098)
@@ -1,3 +1,35 @@
 #!/bin/bash
-rm -rf install
-ln -s /usr/local/matlab714/ install
+set -eu
+
+if [ ! -h install ];
+then
+	echo "  ****************************************************************"
+	echo "  *                                                              *"
+	echo "  * you need create a symbolic link from matlab's root directory *"
+	echo "  *                                                              *"
+	echo "  * First, you need to locate matlab's root directory            *"
+	echo "  * The easiest way to find it is to launch matlab and run the   *"
+	echo "  * following command: matlabroot                                *"
+	echo "  * Then, create a symbolic link using the command 'ln -s ' the  *"
+	echo "  * target directory should be named 'install'                   *"
+	echo "  *                                                              *"
+	echo "  * Examples:                                                    *"
+	echo "  *    ln -s /usr/local/matlab712/ install                       *"
+	echo "  *    ln -s /Applications/MATLAB_R2012a.app/ install            *"
+	echo "  *                                                              *"
+	echo "  * run ./install.sh again to check that the link is correct     *"
+	echo "  *                                                              *"
+	echo "  ****************************************************************"
+else
+
+	#Read link
+	DIR=$(readlink install)
+	if [ -d $DIR ]
+	then
+		echo "Symbolic link correctly set"
+	else
+		rm -rf install
+		echo "Incorrect symbolic link:"
+		echo "provided target ($DIR) does not exist or is not a directory"
+	fi
+fi