--- pickup.c.orig	Sat Apr 14 08:26:17 2007
+++ pickup.c	Sun Jan 18 16:07:07 2015
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <paths.h>
 #include <pwd.h>
+#include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>