EADK (StdLib, AppPkg, StdLibPrivateInternalFiles): Python Beta Release.

Clean up and clearly differentiate required and optional items in configuration files.
Enable the system command and synchronize configuration options between all CPU architectures.
Replace the UEFI_ENV macro with UEFI_C_SOURCE to align with Linux and Posix conventions.
Update copyrights and versions and make minor cosmetic enhancements to files.
Fix compiler-specific build errors.
Add Python-specific ReadMe file.

Signed-off-by: darylm503
Reviewed-by: geekboy15a
Reviewed-by: jljusten
Reviewed-by: leegrosenbaum


git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13119 6f19259b-4bc3-4df7-8a09-765794883524

StdLib/Include/sys/EfiCdefs.h

@@ -22,7 +22,7 @@
     This file and its contents are inspired by the <sys/cdefs.h> files in Berkeley
     Unix.  They have been re-implemented to be specific to the EFI environment.
 
-    Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
+    Copyright (c) 2010 - 2012, Intel Corporation. All rights reserved.<BR>
     This program and the accompanying materials are licensed and made available under
     the terms and conditions of the BSD License that accompanies this distribution.
     The full text of the license may be found at
@@ -330,6 +330,10 @@
   #error You must specify /Zc:wchar_t- to the compiler to turn off intrinsic wchar_t.
   #endif
 
+  /* Get rid of pre-defined macros that are misleading in this environment. */
+  #undef  _WIN32
+  #undef  _WIN64
+
   // Keep compiler quiet about casting from smaller to larger types
   #pragma warning ( disable : 4306 )
 #endif  /* defined(_MSC_VER) */
@@ -344,8 +348,8 @@ typedef UINT32  ULONG32;
 typedef  INT64   LONG64;
 typedef UINT64  ULONG64;
 
-typedef   INT32   EFI_LONG_T;
-typedef  UINT32   EFI_ULONG_T;
+typedef   INTN   EFI_LONG_T;
+typedef  UINTN   EFI_ULONG_T;
 
 /* These types reflect the compiler's size for long */
 #if defined(__GNUC__)