winnls.h must not include winbase.h.

diff --git a/dlls/oleaut32/tmarshal.c b/dlls/oleaut32/tmarshal.c
index 30c597a..b18433d 100644
--- a/dlls/oleaut32/tmarshal.c
+++ b/dlls/oleaut32/tmarshal.c
@@ -29,6 +29,7 @@
 #define NONAMELESSUNION
 #define NONAMELESSSTRUCT
 #include "winerror.h"
+#include "winbase.h"
 #include "winnls.h"
 #include "winreg.h"
 #include "winuser.h"