diff -ur librealsense-1.12.1.orig/src/device.cpp librealsense-std-function/src/device.cpp
--- librealsense-1.12.1.orig/src/device.cpp	2016-12-27 08:17:15.000000000 +0100
+++ librealsense-std-function/src/device.cpp	2017-03-22 13:37:24.869718358 +0100
@@ -11,6 +11,7 @@
 #include <algorithm>
 #include <sstream>
 #include <iostream>
+#include <functional>
 
 using namespace rsimpl;
 using namespace rsimpl::motion_module;
diff -ur librealsense-1.12.1.orig/src/types.h librealsense-std-function/src/types.h
--- librealsense-1.12.1.orig/src/types.h	2016-12-27 08:17:15.000000000 +0100
+++ librealsense-std-function/src/types.h	2017-03-22 13:35:51.198923194 +0100
@@ -22,6 +22,7 @@
 #include <atomic>
 #include <map>          
 #include <algorithm>
+#include <functional>
 
 const uint8_t RS_STREAM_NATIVE_COUNT    = 5;
 const int RS_USER_QUEUE_SIZE = 20;