--- src\include\port-sockets.h.orig	2016-06-20 17:23:49.284238000 +1000
+++ src\include\port-sockets.h	2016-06-20 17:54:07.668027100 +1000
@@ -72,6 +72,12 @@
 #ifndef ETIMEDOUT
 #define ETIMEDOUT WSAETIMEDOUT
 #endif
+#ifndef EAFNOSUPPORT
+#define EAFNOSUPPORT WSAEAFNOSUPPORT
+#endif
+#ifndef EOVERFLOW
+#define EOVERFLOW 132
+#endif
 
 /* Translate posix_error to its Winsock counterpart and set the last Winsock
  * error to the result. */