--- src/worldmap/graph.hxx
+++ src/worldmap/graph.hxx
@@ -22,6 +22,7 @@
 
 #include <algorithm>
 #include <vector>
+#include <iostream>
 
 #include <assert.h>
 
--- src/worldmap/sprite_drawable.hxx
+++ src/worldmap/sprite_drawable.hxx
@@ -46,7 +46,6 @@
 
 private:
   SpriteDrawable (const SpriteDrawable&);
-  SpriteDrawable operator= (const SpriteDrawable&);
 };
 
 } // namespace WorldMapNS