--- builderFiles2.cpp.orig	Mon Sep 30 11:07:34 2002
+++ builderFiles2.cpp	Mon Sep 30 11:08:04 2002
@@ -177,6 +177,8 @@ public:
       const XxFln f2n2 
    );
 
+   virtual ~XxParseDiffError() throw() { }
+
 };
 
 //------------------------------------------------------------------------------
