$OpenBSD: patch-lib_socket_c,v 1.2 2018/09/30 10:58:44 ajacoutot Exp $
Index: lib/socket.c
--- lib/socket.c.orig
+++ lib/socket.c
@@ -140,7 +140,7 @@ static int set_tcp_sockopt(int sockfd, int optname, in
 {
 	int level;
 
-	#if defined(__FreeBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
+	#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__sun) || (defined(__APPLE__) && defined(__MACH__))
 	struct protoent *buf;
 
 	if ((buf = getprotobyname("tcp")) != NULL)
