cleaned up includes with iwyu
diff --git a/DateMeter.c b/DateMeter.c
index 520e516..d01f464 100644
--- a/DateMeter.c
+++ b/DateMeter.c
@@ -10,9 +10,11 @@
 #include "DateMeter.h"
 
 #include <time.h>
+#include <sys/time.h>
 
 #include "CRT.h"
 #include "Object.h"
+#include "ProcessList.h"
 
 
 static const int DateMeter_attributes[] = {