--- old/src/os_cpu/windows_x86/vm/unwind_windows_x86.hpp	2011-02-10 13:17:08.367989700 +0100
+++ new/src/os_cpu/windows_x86/vm/unwind_windows_x86.hpp	2011-02-10 13:17:08.021969900 +0100
@@ -71,7 +71,7 @@
     PVOID HandlerData;
 } DISPATCHER_CONTEXT, *PDISPATCHER_CONTEXT;
 
-#if MSC_VER < 1500
+#if _MSC_VER < 1500
 
 /* Not needed for VS2008 compiler, comes from winnt.h. */
 typedef EXCEPTION_DISPOSITION (*PEXCEPTION_ROUTINE) (