Index: OpenSceneGraph/trunk/src/osgUtil/Optimizer.cpp
===================================================================
--- OpenSceneGraph/trunk/src/osgUtil/Optimizer.cpp (revision 10480)
+++ OpenSceneGraph/trunk/src/osgUtil/Optimizer.cpp (revision 10764)
@@ -45,4 +45,6 @@
 #include <numeric>
 #include <sstream>
+
+#include <iterator>
 
 using namespace osgUtil;