[NaCl SDK] Dereference links before archiving naclmono, fixes Windows build problems

native_client_sdk/src/build_tools/nacl-mono-archive.py

 #!/usr/bin/env python
 # Copyright (c) 2012 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import optparse
 import os
 import sys
 import tarfile
 
@@ skipping 31 matching lines @@
 
   options.tar_path = options.tar_path.replace('%pepperrev%',
                                               options.pepper_revision)
 
   install_folders = ['bin', 'etc', 'include', 'lib', 'lib32', 'share']
 
   buildbot_common.BuildStep('Archive Build')
   tar_file = None
   buildbot_common.RemoveFile(options.tar_path)
   try:
-    tar_file = tarfile.open(options.tar_path, mode='w:bz2')
+    tar_file = tarfile.open(options.tar_path, mode='w:bz2', dereference=True)
     for subfolder in install_folders:
       tar_file.add(os.path.join(options.install_dir, subfolder),
                    arcname=subfolder)
   finally:
     if tar_file:
       tar_file.close()
 
   if not options.skip_upload:
     buildbot_common.Archive(os.path.basename(options.tar_path),
         'nativeclient-mirror/nacl/nacl_sdk/%s' % options.upload_path,
         cwd=os.path.dirname(os.path.abspath(options.tar_path)))
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))