Fix compiler error in visual studio.

dlib/all/source.cpp

@@ -22,9 +22,7 @@
 #include "../data_io/image_dataset_metadata.cpp"
 #include "../data_io/mnist.cpp"
 
-// Stuff that requires C++11
-#include "../dnn/cpu_dlib.cpp"
-#include "../dnn/tensor_tools.cpp"
+
 
 
 #ifndef DLIB_ISO_CPP_ONLY
@@ -85,6 +83,12 @@
 #endif // DLIB_ISO_CPP_ONLY
 
 
+
+// Stuff that requires C++11 (and some threading stuff)
+#include "../dnn/cpu_dlib.cpp"
+#include "../dnn/tensor_tools.cpp"
+
+
 #define DLIB_ALL_SOURCE_END
 
 #endif // DLIB_ALL_SOURCe_