Fixed compiling on Windows Mobile SDK 5.0 with Visual Studio 2008

src/thread/windows/SDL_syssem.c

@@ -39,7 +39,7 @@ struct SDL_semaphore
 #else
     HANDLE id;
 #endif
-    LONG volatile count;
+    LONG count;
 };
 
 

src/thread/windows/SDL_systhread.c

@@ -23,12 +23,10 @@
 
 /* Win32 thread management routines for SDL */
 
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-
 #include "SDL_thread.h"
 #include "../SDL_thread_c.h"
 #include "../SDL_systhread.h"
+#include "SDL_systhread_c.h"
 
 #ifndef SDL_PASSED_BEGINTHREAD_ENDTHREAD
 #ifndef _WIN32_WCE