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diff --git a/EDK/Foundation/Include/EfiSpec.h b/EDK/Foundation/Include/EfiSpec.h
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+/*++
+
+Copyright (c) 2004 - 2006, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  EfiSpec.h
+
+Abstract:
+
+  EFI master include file.
+
+  This is the main include file for EFI components. There should be
+  no defines or macros added to this file, other than the EFI version 
+  information already in this file.
+
+  Don't add include files to the list for convenience, only add things
+  that are architectural. Don't add Protocols or GUID include files here
+
+--*/
+
+#ifndef _EFI_SPEC_H_
+#define _EFI_SPEC_H_
+
+#include "EfiCommon.h"
+#include "EfiApi.h"
+#include "EfiDevicePath.h"
+
+//
+// Check to make sure EFI_SPECIFICATION_VERSION and TIANO_RELEASE_VERSION are defined.
+//
+#if !defined(EFI_SPECIFICATION_VERSION)
+  #error EFI_SPECIFICATION_VERSION not defined
+#elif !defined(TIANO_RELEASE_VERSION)
+  #error TIANO_RELEASE_VERSION not defined
+#elif (TIANO_RELEASE_VERSION == 0)
+//
+// UEFI mode with no Tiano extensions is legal
+//
+#elif ((TIANO_RELEASE_VERSION < 0x00080005) && (EFI_SPECIFICATION_VERSION >= 0x00020000))
+  #error Illegal combination of EFI_SPECIFICATION_VERSION and TIANO_RELEASE_VERSION versions
+#endif
+
+#endif