Fixed linux gcc bug

panda/src/pgraph/auxBitplaneAttrib.h

@@ -61,7 +61,7 @@ protected:
 private:
   int _outputs;
 
-  static CPT(RenderAttrib) AuxBitplaneAttrib::_default;
+  static CPT(RenderAttrib) _default;
 
 public:
   static void register_with_read_factory();

panda/src/pgraph/lightRampAttrib.h

@@ -68,7 +68,7 @@ private:
   float _level[2];
   float _threshold[2];
 
-  static CPT(RenderAttrib) LightRampAttrib::_identity;
+  static CPT(RenderAttrib) _identity;
 
 public:
   static void register_with_read_factory();