--- branches/new_design/OOPSE-2.0/src/brains/SimInfo.cpp	2004/11/30 22:43:51	1807
+++ branches/new_design/OOPSE-2.0/src/brains/SimInfo.cpp	2004/12/02 03:12:25	1824
@@ -31,7 +31,7 @@
  */
 
 #include <algorithm>
-
+#include <set>
 #include "brains/SimInfo.hpp"
 #include "primitives/Molecule.hpp"
 #include "UseTheForce/doForces_interface.h"