From Laurens Voerman, "my compiler (VC Express 9) gives some warnings (see below) about not being able to generate an assignment operator. As those assignment operators are not used and problably should never be used, I solved this by creating an private (empty) assingment operator.

"

From Robert Osfield, added "return *this;" to Laurens's addition to prevent them generating a warning under gcc...

src/osgUtil/tristripper/include/detail/graph_array.h

@@ -103,6 +103,8 @@ public:
 
 		value_type		m_Elem;
 		bool			m_Marker;
+        private:
+                node& operator = (const node&) { return *this; }
 	};
 
 

src/osgUtil/tristripper/include/detail/policy.h

@@ -32,6 +32,7 @@ public:
 	void Challenge(strip Strip, size_t Degree, size_t CacheHits);
 
 private:
+        policy& operator = (const policy&) { return *this; }
 	strip	m_Strip;
 	size_t	m_Degree;
 	size_t	m_CacheHits;