From 2b7643e1f8ecb0bd4cf9af4183b4fd53b655d19c Mon Sep 17 00:00:00 2001
From: Ondrej Zajicek <santiago@crfreenet.org>
Date: Sun, 18 Dec 2022 20:10:14 +0100
Subject: [PATCH] BSD: Use ip_mreqn on FreeBSD 12.1+ and OpenBSD 6.9+

---
 sysdep/bsd/sysio.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/sysdep/bsd/sysio.h b/sysdep/bsd/sysio.h
index 9fc58486..b6b42b1e 100644
--- a/sysdep/bsd/sysio.h
+++ b/sysdep/bsd/sysio.h
@@ -15,9 +15,23 @@
 #ifdef __FreeBSD__
 /* Should be defined in sysdep/cf/bsd.h, but it is flavor-specific */
 #define CONFIG_DONTROUTE_UNICAST
+
+#if __FreeBSD_version >= 1201000
 #define CONFIG_USE_IP_MREQN
 #endif
 
+#endif
+
+
+#ifdef __OpenBSD__
+
+#if OpenBSD >= 202105
+#define CONFIG_USE_IP_MREQN
+#endif
+
+#endif
+
+
 #ifdef __NetBSD__
 
 #ifndef IP_RECVTTL
@@ -30,6 +44,7 @@
 
 #endif
 
+
 #ifdef __DragonFly__
 #define TCP_MD5SIG	TCP_SIGNATURE_ENABLE
 #endif