[NaCl SDK] Enable linux host build for nacl_io and nacl_io_tests.

native_client_sdk/src/build_tools/verify_filelist.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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 re
 import sys
 
-from build_paths import SDK_SRC_DIR
+import build_version
+from build_paths import SDK_SRC_DIR, SCRIPT_DIR, OUT_DIR
 
 # Add SDK make tools scripts to the python path.
 sys.path.append(os.path.join(SDK_SRC_DIR, 'tools'))
 
 import getos
 
 VALID_PLATFORMS = ['linux', 'mac', 'win']
 PLATFORM_PREFIX_RE = re.compile(r'^\[([^\]]*)\](.*)$')
 
 class ParseException(Exception):
@@ skipping 159 matching lines @@
 
 
 def main(args):
   parser = optparse.OptionParser(usage='%prog <rule file> <directory>')
   parser.add_option('-p', '--platform',
       help='Test with this platform, instead of the system\'s platform')
   parser.add_option('-s', '--sort', action='store_true',
       help='Sort the file list in place, rather than verifying the contents.')
   options, args = parser.parse_args(args)
 
+  if not args:
+    args = [os.path.join(SCRIPT_DIR, 'sdk_files.list')]
+
   if options.sort:
     if not args:
       parser.error('Expected rule file.')
     SortFile(args[0])
     return 0
 
-  if len(args) != 2:
-    parser.error('Expected rule file and directory.')
+  if len(args) < 2:
+    version = build_version.ChromeMajorVersion()
+    args.append(os.path.join(OUT_DIR, 'pepper_%s' % version))
 
   rule_path, directory_path = args
   if options.platform:
     if options.platform not in VALID_PLATFORMS:
       parser.error('Unknown platform: %s' % options.platform)
     platform = options.platform
   else:
     platform = getos.GetPlatform()
 
   try:
     return Verify(rule_path, directory_path, platform)
   except ParseException, e:
     print >> sys.stderr, 'Error parsing rules:\n', e
     return 1
   except VerifyException, e:
     print >> sys.stderr, 'Error verifying file list:\n', e
     return 1
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))