--- ppp-2.4.5.orig/include/net/ppp_defs.h	2009-11-16 23:26:07.000000000 +0100
+++ ppp-2.4.5/include/net/ppp_defs.h	2014-03-17 16:32:53.000000000 +0100
@@ -38,6 +38,8 @@
 #ifndef _PPP_DEFS_H_
 #define _PPP_DEFS_H_
 
+#include <sys/time.h>
+
 /*
  * The basic PPP frame.
  */