Fix build breaker.

chart2/source/controller/chartapiwrapper/WrappedSeriesOrDiagramProperty.hxx

@@ -44,6 +44,9 @@ enum tSeriesOrDiagramPropertyType
     DIAGRAM
 };
 
+extern bool operator!=( const ::com::sun::star::awt::Size & rSize1,
+                        const ::com::sun::star::awt::Size & rSize2 );
+
 //PROPERTYTYPE is the type of the outer property
 
 template< typename PROPERTYTYPE >

chart2/source/controller/chartapiwrapper/WrappedSymbolProperties.cxx

@@ -94,6 +94,12 @@ public:
     virtual ~WrappedSymbolBitmapURLProperty();
 };
 
+// this operator is not defined by default
+bool operator!=( const awt::Size & rSize1, const awt::Size & rSize2 )
+{
+    return (rSize1.Width != rSize2.Width) || (rSize1.Height != rSize2.Height);
+}
+
 class WrappedSymbolSizeProperty : public WrappedSeriesOrDiagramProperty< awt::Size >
 {
 public: