diff -up widelands/src/graphic/picture.h~ widelands/src/graphic/picture.h
--- widelands/src/graphic/picture.h~	2009-06-14 18:49:06.000000000 +0200
+++ widelands/src/graphic/picture.h	2010-01-15 16:48:20.000000000 +0100
@@ -17,12 +17,13 @@
  *
  */
 
-#define BOOST_SP_DISABLE_THREADS
-#include <boost/shared_ptr.hpp>
 #include <stdint.h>
 
 #ifndef PICTURE_ID
 #define PICTURE_ID
+
+#include <boost/shared_ptr.hpp>
+
 struct Picture;
 typedef boost::shared_ptr<Picture> PictureID;
 #endif