Changes required for SUN Solaris port...

include/osg/GeoSet

@@ -243,7 +243,7 @@ class SG_EXPORT GeoSet : public Drawable
         /** set the colors and color indices of the geoset.*/
         void setColors( Vec4 *cp, IndexPointer& ip );
         /** set the color binding to the vertices/primitives/overall.*/
-        void setColorBinding( BindingType binding );
+        void setColorBinding( const BindingType binding );
         inline BindingType getColorBinding() const         { return _color_binding; }
 
         /** get the number of texture coords required by the defined primitives and textures binding.*/