WinRT: build fixes and additional WinRT-related integrations with SDL 2.0.0

src/thread/stdcpp/SDL_systhread.cpp

@@ -24,8 +24,8 @@
 
 extern "C" {
 #include "SDL_thread.h"
-#include "../SDL_systhread.h"
 #include "../SDL_thread_c.h"
+#include "../SDL_systhread.h"
 #include "SDL_log.h"
 }
 
@@ -121,4 +121,18 @@ SDL_SYS_WaitThread(SDL_Thread * thread)
     }
 }
 
+extern "C"
+SDL_TLSData *
+SDL_SYS_GetTLSData()
+{
+    return SDL_Generic_GetTLSData();
+}
+
+extern "C"
+int
+SDL_SYS_SetTLSData(SDL_TLSData *data)
+{
+    return SDL_Generic_SetTLSData(data);
+}
+
 /* vi: set ts=4 sw=4 expandtab: */