Index: trunk/nv/library.hh
===================================================================
--- trunk/nv/library.hh	(revision 15)
+++ trunk/nv/library.hh	(revision 16)
@@ -102,4 +102,11 @@
 
 		/**
+		 * Destructor.
+		 *
+		 * It must not throw any exceptions because of the inheritance
+		 */
+		~library_error() throw() {}
+
+		/**
 		 * Returns library name
 		 */