diff --git a/Library/OSRM.h b/Library/OSRM.h
index f5d605d25..61568f2b8 100644
--- a/Library/OSRM.h
+++ b/Library/OSRM.h
@@ -28,21 +28,18 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #ifndef OSRM_H
 #define OSRM_H
 
-#include "../DataStructures/QueryEdge.h"
-#include "../Plugins/BasePlugin.h"
-#include "../Server/Http/Reply.h"
+#include <boost/scoped_ptr.hpp>
+
 #include "../Server/DataStructures/RouteParameters.h"
-#include "../Server/DataStructures/SharedBarriers.h"
-#include "../Server/DataStructures/BaseDataFacade.h"
+#include "../Server/Http/Reply.h"
 #include "../Util/ProgramOptions.h"
 #include "../Util/ServerPaths.h"
 
-#include <boost/noncopyable.hpp>
+class OSRM_impl;
 
-
-class OSRM : boost::noncopyable {
+class OSRM {
 private:
-    typedef boost::unordered_map<std::string, BasePlugin *> PluginMap;
+    OSRM_impl * OSRM_pimpl_;
 public:
     OSRM(
         const ServerPaths & paths,
@@ -50,14 +47,6 @@ public:
     );
     ~OSRM();
     void RunQuery(RouteParameters & route_parameters, http::Reply & reply);
-
-private:
-    void RegisterPlugin(BasePlugin * plugin);
-    PluginMap plugin_map;
-    bool use_shared_memory;
-    SharedBarriers barrier;
-    //base class pointer to the objects
-    BaseDataFacade<QueryEdge::EdgeData> * query_data_facade;
 };
 
-#endif //OSRM_H
+#endif // OSRM_H
diff --git a/Library/OSRM.cpp b/Library/OSRM_impl.cpp
similarity index 89%
rename from Library/OSRM.cpp
rename to Library/OSRM_impl.cpp
index 41b3e67b3..448823d94 100644
--- a/Library/OSRM.cpp
+++ b/Library/OSRM_impl.cpp
@@ -26,6 +26,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
 #include "OSRM.h"
+#include "OSRM_impl.h"
 
 #include "../Plugins/HelloWorldPlugin.h"
 #include "../Plugins/LocatePlugin.h"
@@ -36,21 +37,10 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "../Server/DataStructures/InternalDataFacade.h"
 #include "../Server/DataStructures/SharedDataFacade.h"
-// #include "../Util/InputFileUtil.h"
-// #include "../Util/OSRMException.h"
-// #include "../Util/SimpleLogger.h"
 
 #include <boost/assert.hpp>
-// #include <boost/filesystem.hpp>
-// #include <boost/foreach.hpp>
-// #include <boost/interprocess/shared_memory_object.hpp>
-// #include <boost/interprocess/mapped_region.hpp>
-// #include <boost/interprocess/sync/scoped_lock.hpp>
-// #include <boost/shared_ptr.hpp>
-// #include <boost/thread.hpp>
 
-// #include <vector>
-OSRM::OSRM( const ServerPaths & server_paths, const bool use_shared_memory )
+OSRM_impl::OSRM_impl( const ServerPaths & server_paths, const bool use_shared_memory )
  :
     use_shared_memory(use_shared_memory)
 {
@@ -88,13 +78,13 @@ OSRM::OSRM( const ServerPaths & server_paths, const bool use_shared_memory )
     );
 }
 
-OSRM::~OSRM() {
+OSRM_impl::~OSRM_impl() {
     BOOST_FOREACH(PluginMap::value_type & plugin_pointer, plugin_map) {
         delete plugin_pointer.second;
     }
 }
 
-void OSRM::RegisterPlugin(BasePlugin * plugin) {
+void OSRM_impl::RegisterPlugin(BasePlugin * plugin) {
     SimpleLogger().Write()  << "loaded plugin: " << plugin->GetDescriptor();
     if( plugin_map.find(plugin->GetDescriptor()) != plugin_map.end() ) {
         delete plugin_map.find(plugin->GetDescriptor())->second;
@@ -102,7 +92,7 @@ void OSRM::RegisterPlugin(BasePlugin * plugin) {
     plugin_map.emplace(plugin->GetDescriptor(), plugin);
 }
 
-void OSRM::RunQuery(RouteParameters & route_parameters, http::Reply & reply) {
+void OSRM_impl::RunQuery(RouteParameters & route_parameters, http::Reply & reply) {
     const PluginMap::const_iterator & iter = plugin_map.find(
         route_parameters.service
     );
@@ -152,3 +142,18 @@ void OSRM::RunQuery(RouteParameters & route_parameters, http::Reply & reply) {
         reply = http::Reply::StockReply(http::Reply::badRequest);
     }
 }
+
+// proxy code for compilation firewall
+
+OSRM::OSRM(
+    const ServerPaths & paths,
+    const bool use_shared_memory
+) : OSRM_pimpl_(new OSRM_impl(paths, use_shared_memory)) { }
+
+OSRM::~OSRM() {
+    delete OSRM_pimpl_;
+}
+
+void OSRM::RunQuery(RouteParameters & route_parameters, http::Reply & reply) {
+    OSRM_pimpl_->RunQuery(route_parameters, reply);
+}
diff --git a/Library/OSRM_impl.h b/Library/OSRM_impl.h
new file mode 100644
index 000000000..45c6c2c11
--- /dev/null
+++ b/Library/OSRM_impl.h
@@ -0,0 +1,63 @@
+/*
+
+Copyright (c) 2013, Project OSRM, Dennis Luxen, others
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice, this list
+of conditions and the following disclaimer.
+Redistributions in binary form must reproduce the above copyright notice, this
+list of conditions and the following disclaimer in the documentation and/or
+other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
+#ifndef OSRM_IMPL_H
+#define OSRM_IMPL_H
+
+#include "../DataStructures/QueryEdge.h"
+#include "../Plugins/BasePlugin.h"
+#include "../Server/Http/Reply.h"
+#include "../Server/DataStructures/RouteParameters.h"
+#include "../Server/DataStructures/SharedBarriers.h"
+#include "../Server/DataStructures/BaseDataFacade.h"
+#include "../Util/ProgramOptions.h"
+#include "../Util/ServerPaths.h"
+
+#include <boost/noncopyable.hpp>
+
+
+class OSRM_impl : boost::noncopyable {
+private:
+    typedef boost::unordered_map<std::string, BasePlugin *> PluginMap;
+public:
+    OSRM_impl(
+        const ServerPaths & paths,
+        const bool use_shared_memory
+    );
+    virtual ~OSRM_impl();
+    void RunQuery(RouteParameters & route_parameters, http::Reply & reply);
+
+private:
+    void RegisterPlugin(BasePlugin * plugin);
+    PluginMap plugin_map;
+    bool use_shared_memory;
+    SharedBarriers barrier;
+    //base class pointer to the objects
+    BaseDataFacade<QueryEdge::EdgeData> * query_data_facade;
+};
+
+#endif //OSRM_IMPL_H