ADD: added other eigen lib

libs/eigen/unsupported/Eigen/NumericalDiff

@@ -7,8 +7,8 @@
 // Public License v. 2.0. If a copy of the MPL was not distributed
 // with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-#ifndef EIGEN_NUMERICALDIFF_MODULE
-#define EIGEN_NUMERICALDIFF_MODULE
+#ifndef EIGEN_NUMERICALDIFF_MODULE_H
+#define EIGEN_NUMERICALDIFF_MODULE_H
 
 #include "../../Eigen/Core"
 
@@ -53,4 +53,4 @@ namespace Eigen {
 //@}
 
 
-#endif // EIGEN_NUMERICALDIFF_MODULE
+#endif // EIGEN_NUMERICALDIFF_MODULE_H