--- builderFiles3.cpp.orig	Mon Sep 30 10:51:54 2002
+++ builderFiles3.cpp	Mon Sep 30 10:52:34 2002
@@ -79,6 +79,8 @@ public:
       const XxFln f3n2 
    );
 
+   virtual ~XxParseDiffError() throw() { }
+
 };
 
 //------------------------------------------------------------------------------
