$OpenBSD: patch-mono_metadata_mono-route_h,v 1.2 2018/01/02 13:19:10 robert Exp $
Index: mono/metadata/mono-route.h
--- mono/metadata/mono-route.h.orig
+++ mono/metadata/mono-route.h
@@ -8,6 +8,7 @@
 #if defined(HOST_DARWIN) || defined(HOST_BSD)
 
 #include <sys/socket.h>
+#include <netinet/in.h>		/* in_addr_t */
 
 #if defined (HOST_IOS) || defined (HOST_WATCHOS) || defined (HOST_APPLETVOS)
 // The iOS SDK does not provide the net/route.h header but using the Darwin version works fine.
