diff -ur Audio-CD-0.04.orig/cddb_lookup.c Audio-CD-0.04/cddb_lookup.c
--- Audio-CD-0.04.orig/cddb_lookup.c	1999-12-30 05:46:32.000000000 +0100
+++ Audio-CD-0.04/cddb_lookup.c	2011-08-01 22:51:33.110956655 +0200
@@ -19,8 +19,11 @@
 /* modified for Audio::CD by dougm */
 
 #include "cdaudio.h"
+#include <string.h>
 #include "cddb_lookup.h"
-#include "stdio.h"
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/socket.h>
 
 #define PACKAGE "Audio::CD"