$OpenBSD: patch-src_lib_bnet_c,v 1.3 2016/01/19 22:51:09 sthen Exp $
--- src/lib/bnet.c.orig	Fri Jan 15 16:57:18 2016
+++ src/lib/bnet.c	Mon Jan 18 13:07:24 2016
@@ -629,7 +629,9 @@ int set_socket_errno(int sockstat)
       /* Handle errrors from prior connections as EAGAIN */
       switch (errno) {
          case ENETDOWN:
+#ifdef EPROTO
          case EPROTO:
+#endif
          case ENOPROTOOPT:
          case EHOSTDOWN:
 #ifdef ENONET
