Support Mac android cross compile.

pylib/gyp/common.py

 # Copyright (c) 2012 Google Inc. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from __future__ import with_statement
 
 import errno
 import filecmp
 import os.path
 import re
@@ skipping 342 matching lines @@
     'win32': 'win',
     'darwin': 'mac',
     'sunos5': 'solaris',
     'freebsd7': 'freebsd',
     'freebsd8': 'freebsd',
     'freebsd9': 'freebsd',
   }
   flavor = flavors.get(sys.platform, 'linux')
   return params.get('flavor', flavor)
 
+def GetHostFlavor(params):
+  """Returns |params.options.host_flavor | if it's set, the system's default

[Torne, 2012/08/14 11:04:01]

No whitespace between the variable name and |

+  flavor else."""
+  options = params.get('options')
+  if options.host_flavor:
+    host_flavor = options.host_flavor
+  else:
+    host_flavor = GetFlavor({})
+  return host_flavor;
 
 def CopyTool(flavor, out_path):
   """Finds (mac|sun|win)_tool.gyp in the gyp directory and copies it
   to |out_path|."""
   prefix = { 'solaris': 'sun', 'mac': 'mac', 'win': 'win' }.get(flavor, None)
   if not prefix:
     return
 
   # Slurp input file.
   source_path = os.path.join(
@@ skipping 70 matching lines @@
       return
     visited.add(node)
     visiting.add(node)
     for neighbor in get_edges(node):
       Visit(neighbor)
     visiting.remove(node)
     ordered_nodes.insert(0, node)
   for node in sorted(graph):
     Visit(node)
   return ordered_nodes