From bf23e5392b1f26aefccb7667797834e8a0759f7e Mon Sep 17 00:00:00 2001
From: "Alexander A. Klimov" <alexander.klimov@icinga.com>
Date: Tue, 12 Mar 2019 11:47:53 +0100
Subject: [PATCH] UnbufferedAsioTlsStream: don't rely on *this in decltype()s
 for methods' return types

---
 lib/base/tlsstream.hpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/base/tlsstream.hpp b/lib/base/tlsstream.hpp
index 5f5fc6d73..6156a3d2f 100644
--- a/lib/base/tlsstream.hpp
+++ b/lib/base/tlsstream.hpp
@@ -122,7 +122,7 @@ public:
 
 	template<class... Args>
 	inline
-	auto async_handshake(handshake_type type, Args&&... args) -> decltype(AsioTcpTlsStream::async_handshake(type, std::forward<Args>(args)...))
+	auto async_handshake(handshake_type type, Args&&... args) -> decltype(((AsioTcpTlsStream*)nullptr)->async_handshake(type, std::forward<Args>(args)...))
 	{
 		BeforeHandshake(type);
 
@@ -131,7 +131,7 @@ public:
 
 	template<class... Args>
 	inline
-	auto handshake(handshake_type type, Args&&... args) -> decltype(AsioTcpTlsStream::handshake(type, std::forward<Args>(args)...))
+	auto handshake(handshake_type type, Args&&... args) -> decltype(((AsioTcpTlsStream*)nullptr)->handshake(type, std::forward<Args>(args)...))
 	{
 		BeforeHandshake(type);