From c1e070c042364baf42c782909bc6e5981ec4d66b Mon Sep 17 00:00:00 2001
From: Tom Ritchford <tom@swirly.com>
Date: Mon, 10 Nov 2014 19:28:35 -0500
Subject: [PATCH] Add missing header needed for boost 1.57 compatibility.

---
 beast/http/message.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/beast/http/message.h b/beast/http/message.h
index 1cc21254fd..155b8ee365 100644
--- a/beast/http/message.h
+++ b/beast/http/message.h
@@ -30,6 +30,7 @@
 #include <cctype>
 #include <ostream>
 #include <string>
+#include <sstream>
 #include <utility>
 
 namespace beast {