define IntelCpuTopologyLevel for backward compatibility
diff --git a/xbyak/xbyak_util.h b/xbyak/xbyak_util.h
index 8946fc8..6aa9dba 100644
--- a/xbyak/xbyak_util.h
+++ b/xbyak/xbyak_util.h
@@ -92,6 +92,7 @@
    SmtLevel = 1,
    CoreLevel = 2
 } CpuTopologyLevel;
+typedef CpuTopologyLevel IntelCpuTopologyLevel; // for backward compatibility
 
 namespace local {