From a398d2ca66cffdbc7b3e96366fa5978e8f7cf32e Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Mon, 14 Dec 2020 11:44:41 +0100
Subject: [PATCH] rec: Fix the NSEC3 hashes cache on older systems

By explicitely constructing the tuple.
---
 pdns/validate.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pdns/validate.cc b/pdns/validate.cc
index 9b70952284..08e00dd6df 100644
--- a/pdns/validate.cc
+++ b/pdns/validate.cc
@@ -90,14 +90,15 @@ static std::string getHashFromNSEC3(const DNSName& qname, const std::shared_ptr<
     return result;
   }
 
-  auto it = cache.find({qname, nsec3->d_salt, nsec3->d_iterations});
+  auto key = std::make_tuple(qname, nsec3->d_salt, nsec3->d_iterations);
+  auto it = cache.find(key);
   if (it != cache.end())
   {
     return it->second;
   }
 
   result = hashQNameWithSalt(nsec3->d_salt, nsec3->d_iterations, qname);
-  cache[{qname, nsec3->d_salt, nsec3->d_iterations}] = result;
+  cache[key] = result;
   return result;
 }
 
-- 
2.47.2