Use inline for header implementations.

Author: evoskuil

include/bitcoin/node/protocols/protocol.hpp

@@ -40,7 +40,7 @@ class BCN_API protocol
     /// -----------------------------------------------------------------------
 
     // reinterpret_pointer_cast because channel is abstract.
-    protocol(const auto& session,
+    inline protocol(const auto& session,
         const network::channel::ptr& channel) NOEXCEPT
       : channel_(std::reinterpret_pointer_cast<node::channel>(channel)),
         session_(session)

include/bitcoin/node/protocols/protocol_stratum_v1.hpp

@@ -33,7 +33,7 @@ class BCN_API protocol_stratum_v1
 public:
     typedef std::shared_ptr<protocol_stratum_v1> ptr;
 
-    protocol_stratum_v1(const auto& session,
+    inline protocol_stratum_v1(const auto& session,
         const network::channel::ptr& channel,
         const options_t& options) NOEXCEPT
       : node::protocol_rpc(session, channel, options),

include/bitcoin/node/protocols/protocol_stratum_v2.hpp

@@ -33,7 +33,7 @@ class BCN_API protocol_stratum_v2
 public:
     typedef std::shared_ptr<protocol_stratum_v2> ptr;
 
-    protocol_stratum_v2(const auto& session,
+    inline protocol_stratum_v2(const auto& session,
         const network::channel::ptr& channel,
         const options_t& options) NOEXCEPT
       : node::protocol_tcp(session, channel, options),