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diff --git a/deps/gyp/pylib/gyp/generator/gypd.py b/deps/gyp/pylib/gyp/generator/gypd.py
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+# Copyright (c) 2011 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.
+
+"""gypd output module
+
+This module produces gyp input as its output.  Output files are given the
+.gypd extension to avoid overwriting the .gyp files that they are generated
+from.  Internal references to .gyp files (such as those found in
+"dependencies" sections) are not adjusted to point to .gypd files instead;
+unlike other paths, which are relative to the .gyp or .gypd file, such paths
+are relative to the directory from which gyp was run to create the .gypd file.
+
+This generator module is intended to be a sample and a debugging aid, hence
+the "d" for "debug" in .gypd.  It is useful to inspect the results of the
+various merges, expansions, and conditional evaluations performed by gyp
+and to see a representation of what would be fed to a generator module.
+
+It's not advisable to rename .gypd files produced by this module to .gyp,
+because they will have all merges, expansions, and evaluations already
+performed and the relevant constructs not present in the output; paths to
+dependencies may be wrong; and various sections that do not belong in .gyp
+files such as such as "included_files" and "*_excluded" will be present.
+Output will also be stripped of comments.  This is not intended to be a
+general-purpose gyp pretty-printer; for that, you probably just want to
+run "pprint.pprint(eval(open('source.gyp').read()))", which will still strip
+comments but won't do all of the other things done to this module's output.
+
+The specific formatting of the output generated by this module is subject
+to change.
+"""
+
+
+import gyp.common
+import errno
+import os
+import pprint
+
+
+# These variables should just be spit back out as variable references.
+_generator_identity_variables = [
+  'EXECUTABLE_PREFIX',
+  'EXECUTABLE_SUFFIX',
+  'INTERMEDIATE_DIR',
+  'PRODUCT_DIR',
+  'RULE_INPUT_ROOT',
+  'RULE_INPUT_DIRNAME',
+  'RULE_INPUT_EXT',
+  'RULE_INPUT_NAME',
+  'RULE_INPUT_PATH',
+  'SHARED_INTERMEDIATE_DIR',
+]
+
+# gypd doesn't define a default value for OS like many other generator
+# modules.  Specify "-D OS=whatever" on the command line to provide a value.
+generator_default_variables = {
+}
+
+# gypd supports multiple toolsets
+generator_supports_multiple_toolsets = True
+
+# TODO(mark): This always uses <, which isn't right.  The input module should
+# notify the generator to tell it which phase it is operating in, and this
+# module should use < for the early phase and then switch to > for the late
+# phase.  Bonus points for carrying @ back into the output too.
+for v in _generator_identity_variables:
+  generator_default_variables[v] = '<(%s)' % v
+
+
+def GenerateOutput(target_list, target_dicts, data, params):
+  output_files = {}
+  for qualified_target in target_list:
+    [input_file, target] = \
+        gyp.common.ParseQualifiedTarget(qualified_target)[0:2]
+
+    if input_file[-4:] != '.gyp':
+      continue
+    input_file_stem = input_file[:-4]
+    output_file = input_file_stem + params['options'].suffix + '.gypd'
+
+    if not output_file in output_files:
+      output_files[output_file] = input_file
+
+  for output_file, input_file in output_files.iteritems():
+    output = open(output_file, 'w')
+    pprint.pprint(data[input_file], output)
+    output.close()