--- wumpus.c.orig	2015-04-04 12:31:47.000000000 +0200
+++ wumpus.c	2015-06-08 18:43:34.738979482 +0200
@@ -30,6 +30,9 @@
 #include <stdio.h>
 #include <ctype.h>
 #include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/socket.h>
 
 /* 5 REM *** HUNT THE WUMPUS ***					*/