diff -ruN nethogs-old/conninode.cpp nethogs/conninode.cpp
--- nethogs-old/conninode.cpp	2009-05-17 09:05:32.000000000 -0400
+++ nethogs/conninode.cpp	2009-05-17 09:06:47.000000000 -0400
@@ -1,6 +1,7 @@
 #include <netinet/in.h>
 #include <map>
 #include <stdlib.h>
+#include <cstdio>
 
 #include "nethogs.h"
 #include "conninode.h"