diff -ur a/applepart.c b/applepart.c
--- a/applepart.c	2020-03-30 10:25:52.122137073 -0500
+++ b/applepart.c	2020-03-30 10:26:09.803672537 -0500
@@ -27,6 +27,7 @@
 #include <string.h>
 #include <stdio.h>
 #include <errno.h>
+#include <byteswap.h>
 
 #include "applepart.h"
 #include "endian.h"