--- utils/ndptool.c.orig	2015-05-13 09:41:18.363683655 +0200
+++ utils/ndptool.c	2015-05-13 09:41:32.746663815 +0200
@@ -28,6 +28,7 @@
 #include <arpa/inet.h>
 #include <errno.h>
 #include <ndp.h>
+#include <sys/select.h>
 
 enum verbosity_level {
 	VERB1,