fixed compiling with vs2008 (#932)

src/engine/client/backend_sdl.cpp

@@ -2,6 +2,8 @@
 #include "SDL.h"
 #include "SDL_opengl.h"
 
+#include <base/tl/threading.h>
+
 #include "graphics_threaded.h"
 #include "backend_sdl.h"
 

src/engine/client/graphics.cpp

@@ -3,6 +3,7 @@
 
 #include <base/detect.h>
 #include <base/math.h>
+#include <base/tl/threading.h>
 
 #include "SDL.h"
 #include "SDL_opengl.h"

src/engine/client/graphics_threaded.cpp

@@ -3,6 +3,7 @@
 
 #include <base/detect.h>
 #include <base/math.h>
+#include <base/tl/threading.h>
 
 #include <base/system.h>
 #include <engine/external/pnglite/pnglite.h>

src/engine/client/graphics_threaded.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <base/tl/threading.h>
-
 #include <engine/graphics.h>
 
 class CCommandBuffer

src/engine/graphics.h

@@ -5,7 +5,6 @@
 
 #include "kernel.h"
 
-#include <base/tl/threading.h>
 
 class CImageInfo
 {
@@ -139,7 +138,7 @@ public:
 	virtual void Swap() = 0;
 
 	// syncronization
-	virtual void InsertSignal(semaphore *pSemaphore) = 0;
+	virtual void InsertSignal(class semaphore *pSemaphore) = 0;
 	virtual bool IsIdle() = 0;
 	virtual void WaitForIdle() = 0;
 };