--- vncviewer/vncviewer.h~	Wed Mar 17 14:29:27 1999
+++ vncviewer/vncviewer.h	Wed Mar 17 15:03:32 1999
@@ -24,6 +24,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/types.h>
 #include <sys/socket.h>
 #include <sys/time.h>
 #include <X11/Xlib.h>
