--- a/src/netanim/test/netanim-test.cc	Tue May 22 09:46:28 2012 -0700
+++ b/src/netanim/test/netanim-test.cc	Tue May 22 21:37:34 2012 -0700
@@ -17,6 +17,7 @@
  */
 
 #include <iostream>
+#include "unistd.h"
 
 #include "ns3/core-module.h"
 #include "ns3/network-module.h"