From 2f2c886eb2da46b9dc8944c8f79ac31a9f116a81 Mon Sep 17 00:00:00 2001
From: ralf1070 <ralf@bj-ig.de>
Date: Fri, 25 Jan 2019 12:05:37 +0100
Subject: [PATCH] make it compile with boost >= 1.66.0 (#324)

---
 include/opc/ua/server/addons/asio_addon.h    | 12 +-----------
 include/opc/ua/server/opc_tcp_async.h        |  8 --------
 include/opc/ua/server/subscription_service.h |  9 ---------
 include/opc/ua/services/services.h           | 16 ++++++++++++++++
 src/server/server_object.h                   |  8 --------
 5 files changed, 17 insertions(+), 36 deletions(-)

diff --git a/include/opc/ua/server/addons/asio_addon.h b/include/opc/ua/server/addons/asio_addon.h
index 8fed93e3..912c11d1 100644
--- a/include/opc/ua/server/addons/asio_addon.h
+++ b/include/opc/ua/server/addons/asio_addon.h
@@ -21,17 +21,7 @@
 
 
 #include <opc/common/addons_core/addon.h>
-
-
-namespace boost
-{
-namespace asio
-{
-
-class io_service;
-
-}
-}
+#include <opc/ua/services/services.h>
 
 namespace OpcUa
 {
diff --git a/include/opc/ua/server/opc_tcp_async.h b/include/opc/ua/server/opc_tcp_async.h
index e68f6cc2..533cdc92 100644
--- a/include/opc/ua/server/opc_tcp_async.h
+++ b/include/opc/ua/server/opc_tcp_async.h
@@ -22,14 +22,6 @@
 #include <opc/ua/services/services.h>
 #include <opc/common/interface.h>
 
-namespace boost
-{
-namespace asio
-{
-class io_service;
-}
-}
-
 namespace OpcUa
 {
 namespace Server
diff --git a/include/opc/ua/server/subscription_service.h b/include/opc/ua/server/subscription_service.h
index 5ff0e088..f2095e79 100644
--- a/include/opc/ua/server/subscription_service.h
+++ b/include/opc/ua/server/subscription_service.h
@@ -14,15 +14,6 @@
 #include <opc/ua/server/address_space.h>
 #include <opc/ua/services/subscriptions.h>
 
-
-namespace boost
-{
-namespace asio
-{
-class io_service;
-}
-}
-
 namespace OpcUa
 {
 namespace Server
diff --git a/include/opc/ua/services/services.h b/include/opc/ua/services/services.h
index 8d0437c0..f138831b 100644
--- a/include/opc/ua/services/services.h
+++ b/include/opc/ua/services/services.h
@@ -25,6 +25,22 @@
 #include <memory>
 #include <vector>
 
+#include <boost/version.hpp>
+
+
+namespace boost
+{
+namespace asio
+{
+#if BOOST_VERSION < 106600
+  class io_service;
+#else
+  class io_context;
+  typedef io_context io_service;
+#endif
+}
+}
+
 namespace OpcUa
 {
 
diff --git a/src/server/server_object.h b/src/server/server_object.h
index 99519eda..d0bedea5 100644
--- a/src/server/server_object.h
+++ b/src/server/server_object.h
@@ -24,14 +24,6 @@
 
 #include "timer.h"
 
-namespace boost
-{
-namespace asio
-{
-class io_service;
-}
-}
-
 namespace OpcUa
 {
 namespace Server