From 5d8d65bfdceaeee7f5cf02e97d12981285b9575c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ond=C5=99ej=20Sur=C3=BD?= <ondrej@sury.org>
Date: Mon, 29 Apr 2019 19:28:24 +0200
Subject: [PATCH] Add safeguard against the other usage of SO_REUSEPORT

(cherry picked from commit 1c672367a0eab751e4694745dc69a401259ec60b)
---
 lib/isc/unix/socket.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/isc/unix/socket.c b/lib/isc/unix/socket.c
index f9caa160bf..5cbb27573c 100644
--- a/lib/isc/unix/socket.c
+++ b/lib/isc/unix/socket.c
@@ -4477,12 +4477,14 @@ isc_socket_bind(isc_socket_t *sock0, const isc_sockaddr_t *sockaddr,
 			UNEXPECTED_ERROR(__FILE__, __LINE__,
 					 "setsockopt(%d) failed", sock->fd);
 		}
+#elif defined(__linux__) && defined(SO_REUSEPORT)
 		if (setsockopt(sock->fd, SOL_SOCKET, SO_REUSEPORT,
 			       (void *)&on, sizeof(on)) < 0)
 		{
 			UNEXPECTED_ERROR(__FILE__, __LINE__,
 					 "setsockopt(%d) failed", sock->fd);
 		}
+#endif
 		/* Press on... */
 	}
 #ifdef AF_UNIX