From 5fca0ca262565e628c8e4a3f1c7e352c404e915f Mon Sep 17 00:00:00 2001
From: Otto Moerbeek <otto@drijf.net>
Date: Tue, 17 May 2022 17:57:28 +0200
Subject: [PATCH] Zap binary function, not needed and deprecated in c++11,
 removed in c++17

---
 pdns/zonemd.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pdns/zonemd.hh b/pdns/zonemd.hh
index 63551fec3e..acb402d250 100644
--- a/pdns/zonemd.hh
+++ b/pdns/zonemd.hh
@@ -107,7 +107,7 @@ private:
   typedef std::pair<DNSName, QType> RRSetKey_t;
   typedef std::vector<std::shared_ptr<DNSRecordContent>> RRVector_t;
 
-  struct CanonRRSetKeyCompare : public std::binary_function<RRSetKey_t, RRSetKey_t, bool>
+  struct CanonRRSetKeyCompare
   {
     bool operator()(const RRSetKey_t& a, const RRSetKey_t& b) const
     {
-- 
2.47.2