--- sslscan.c.orig	2019-03-25 05:32:05.000000000 +1100
+++ sslscan.c	2019-09-19 21:09:10.000000000 +1000
@@ -97,7 +97,7 @@
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 #include <openssl/ocsp.h>
-#ifdef __linux__
+#if defined(__linux__) || defined(__APPLE__)
     #include <arpa/inet.h>
 #endif
 #ifndef OPENSSL_NO_COMP