From 27eb476bcd6bef1479e78fab7541de60aa9a8096 Mon Sep 17 00:00:00 2001
From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Tue, 1 Dec 2015 18:45:24 +0100
Subject: [PATCH] more const; disable useless compiler warning

---
 pdns/unix_utility.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/pdns/unix_utility.cc b/pdns/unix_utility.cc
index 24b3df0b4d..ed58314d05 100644
--- a/pdns/unix_utility.cc
+++ b/pdns/unix_utility.cc
@@ -80,8 +80,9 @@ int Utility::timed_connect( Utility::sock_t sock,
 
 void Utility::setBindAny(int af, sock_t sock)
 {
-  int one = 1;
+  const int one = 1;
 
+  (void) one; // avoids 'unused var' warning on systems that have none of the defines checked below
 #ifdef IP_FREEBIND
   if (setsockopt(sock, IPPROTO_IP, IP_FREEBIND, &one, sizeof(one)) < 0)
       theL()<<Logger::Warning<<"Warning: IP_FREEBIND setsockopt failed: "<<strerror(errno)<<endl;
-- 
2.47.2