BIRD OSX patches.

0001-BSD-OSX-portability-fixes.patch

From 117b56d5315287bb15948f448229431101d48380 Mon Sep 17 00:00:00 2001
From: Yawning Angel <yawning@schwanenlied.me>
Date: Mon, 19 Nov 2018 22:52:41 +0000
Subject: [PATCH] BSD: OSX portability fixes

 * RFC 3542 constants require `__APPLE_USE_RFC_3542` to be defined.
 * TCP MD5 signatures are not supported by the kernel at all.
---
 sysdep/bsd/sysio.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sysdep/bsd/sysio.h b/sysdep/bsd/sysio.h
index 545276a3..3e4115a9 100644
--- a/sysdep/bsd/sysio.h
+++ b/sysdep/bsd/sysio.h
@@ -33,6 +33,10 @@
 #define TCP_MD5SIG	TCP_SIGNATURE_ENABLE
 #endif
 
+#if (defined __APPLE__) && (defined __MACH__)
+#define __APPLE_USE_RFC_3542
+#endif
+
 
 #undef  SA_LEN
 #define SA_LEN(x) (x).sa.sa_len
@@ -209,6 +213,16 @@ sk_prepare_ip_header(sock *s, void *hdr, int dlen)
 #include "lib/setkey.h"
 #endif
 
+#if (defined __APPLE__) && (defined __MACH__)
+int
+sk_set_md5_auth(sock *s, ip_addr local UNUSED, ip_addr remote UNUSED, struct iface *ifa UNUSED, char *passwd, int setkey UNUSED)
+{
+  ERR_MSG("OSX does not support TCP MD5 signatures");
+
+  errno = ENOPROTOOPT;
+  return -1;
+}
+#else
 int
 sk_set_md5_auth(sock *s, ip_addr local UNUSED, ip_addr remote UNUSED, struct iface *ifa UNUSED, char *passwd, int setkey UNUSED)
 {
@@ -229,6 +243,7 @@ sk_set_md5_auth(sock *s, ip_addr local UNUSED, ip_addr remote UNUSED, struct ifa
 
   return 0;
 }
+#endif
 
 static inline int
 sk_set_min_ttl4(sock *s, int ttl)
-- 
2.19.1