From 121c28e9e9d3dca9d4c37d7935abeb5657e19b78 Mon Sep 17 00:00:00 2001
From: Remi Gacogne <remi.gacogne@powerdns.com>
Date: Thu, 28 Jul 2016 11:08:43 +0200
Subject: [PATCH] Fix `DNSProtoBufMessage::toDebugString()` without protobuf
 support

Fixes #4240.
---
 pdns/protobuf.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pdns/protobuf.cc b/pdns/protobuf.cc
index 248fd608d..d04fa2540 100644
--- a/pdns/protobuf.cc
+++ b/pdns/protobuf.cc
@@ -151,6 +151,8 @@ std::string DNSProtoBufMessage::toDebugString() const
 {
 #ifdef HAVE_PROTOBUF
   return d_message.DebugString();
+#else
+  return std::string();
 #endif /* HAVE_PROTOBUF */
 }
 
-- 
2.49.0