--- boost_1_84_0/boost/asio/detail/io_control.hpp.O	2017-04-17 03:22:26.000000000 +0100
+++ boost_1_84_0/boost/asio/detail/io_control.hpp	2019-11-15 15:46:16.957937137 +0000
@@ -11,6 +11,9 @@
 # pragma once
 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
 
+#ifdef APPLE
+#include <netinet/in.h>
+#endif 
 #include <boost/asio/detail/config.hpp>
 #include <cstddef>