diff --git a/update_engine.gyp b/update_engine.gyp
new file mode 100644
index 0000000..e35d725
--- /dev/null
+++ b/update_engine.gyp
@@ -0,0 +1,329 @@
+{
+  'target_defaults': {
+    'variables': {
+      'deps': [
+        'libchrome-<(libbase_ver)',
+        'libchromeos-<(libbase_ver)',
+      ],
+      # Defaults if the -DUSE_* flags are not passed to gyp is 0. You can set
+      # the default value for the USE flag in the ebuild.
+      'USE_hwid_override%': '0',
+      'USE_power_management%': '0',
+    },
+    'cflags': [
+      '-g',
+      '-ffunction-sections',
+      '-Wall',
+      '-Wextra',
+      '-Werror',
+      '-Wno-unused-parameter',
+      '-Wno-deprecated-register',
+      '-Wno-format-nonliteral',
+    ],
+    'cflags_cc': [
+      '-fno-strict-aliasing',
+      '-std=gnu++11',
+    ],
+    'ldflags': [
+      '-Wl,--gc-sections',
+    ],
+    'defines': [
+      '__STDC_FORMAT_MACROS=1',
+      '_FILE_OFFSET_BITS=64',
+      '_POSIX_C_SOURCE=199309L',
+      'USE_HWID_OVERRIDE=<(USE_hwid_override)',
+      'USE_POWER_MANAGEMENT=<(USE_power_management)',
+    ],
+  },
+  'targets': [
+    # Protobufs.
+    {
+      'target_name': 'update_metadata-protos',
+      'type': 'static_library',
+      'variables': {
+        'proto_in_dir': '.',
+        'proto_out_dir': 'include/update_engine',
+      },
+      'sources': [
+        'update_metadata.proto'
+      ],
+      'includes': ['../common-mk/protoc.gypi'],
+    },
+    # D-Bus glib bindings.
+    {
+      'target_name': 'update_engine-dbus-client',
+      'type': 'none',
+      'variables': {
+        'dbus_glib_type': 'client',
+        'dbus_glib_out_dir': 'include/update_engine',
+        'dbus_glib_prefix': 'update_engine_service',
+      },
+      'sources': [
+        'update_engine.xml',
+      ],
+      'includes': ['../common-mk/dbus_glib.gypi'],
+    },
+    {
+      'target_name': 'update_engine-dbus-server',
+      'type': 'none',
+      'variables': {
+        'dbus_glib_type': 'server',
+        'dbus_glib_out_dir': 'include/update_engine',
+        'dbus_glib_prefix': 'update_engine_service',
+      },
+      'sources': [
+        'update_engine.xml',
+      ],
+      'includes': ['../common-mk/dbus_glib.gypi'],
+    },
+    # The main static_library with all the code.
+    {
+      'target_name': 'libupdate_engine',
+      'type': 'static_library',
+      'dependencies': [
+        'update_metadata-protos',
+        'update_engine-dbus-client',
+        'update_engine-dbus-server',
+      ],
+      'variables': {
+        'exported_deps': [
+          'dbus-1',
+          'dbus-glib-1',
+          'ext2fs',
+          'gio-2.0',
+          'gio-unix-2.0',
+          'glib-2.0',
+          'gthread-2.0',
+          'libchrome-<(libbase_ver)',
+          'libchromeos-<(libbase_ver)',
+          'libcrypto',
+          'libcurl',
+          'libmetrics-<(libbase_ver)',
+          'libssl',
+          'libxml-2.0',
+          'protobuf',
+        ],
+        'deps': ['<@(exported_deps)'],
+      },
+      'all_dependent_settings': {
+        'variables': {
+          'deps': [
+            '<@(exported_deps)',
+          ],
+        },
+      },
+      'link_settings': {
+        'variables': {
+          'deps': [
+            '<@(exported_deps)',
+          ],
+        },
+        'libraries': [
+          '-lbz2',
+          '-lgflags',
+          '-lpolicy-<(libbase_ver)',
+          '-lrootdev',
+          '-lrt',
+          '-lvboot_host',
+        ],
+      },
+      'sources': [
+        'action_processor.cc',
+        'bzip.cc',
+        'bzip_extent_writer.cc',
+        'certificate_checker.cc',
+        'chrome_browser_proxy_resolver.cc',
+        'clock.cc',
+        'connection_manager.cc',
+        'constants.cc',
+        'dbus_service.cc',
+        'delta_performer.cc',
+        'download_action.cc',
+        'extent_ranges.cc',
+        'extent_writer.cc',
+        'file_descriptor.cc',
+        'file_writer.cc',
+        'filesystem_copier_action.cc',
+        'hardware.cc',
+        'http_common.cc',
+        'http_fetcher.cc',
+        'hwid_override.cc',
+        'install_plan.cc',
+        'libcurl_http_fetcher.cc',
+        'metrics.cc',
+        'multi_range_http_fetcher.cc',
+        'omaha_hash_calculator.cc',
+        'omaha_request_action.cc',
+        'omaha_request_params.cc',
+        'omaha_response_handler_action.cc',
+        'p2p_manager.cc',
+        'payload_constants.cc',
+        'payload_generator/cycle_breaker.cc',
+        'payload_generator/delta_diff_generator.cc',
+        'payload_generator/extent_mapper.cc',
+        'payload_generator/filesystem_iterator.cc',
+        'payload_generator/full_update_generator.cc',
+        'payload_generator/graph_utils.cc',
+        'payload_generator/metadata.cc',
+        'payload_generator/tarjan.cc',
+        'payload_generator/topological_sort.cc',
+        'payload_signer.cc',
+        'payload_state.cc',
+        'postinstall_runner_action.cc',
+        'prefs.cc',
+        'proxy_resolver.cc',
+        'real_system_state.cc',
+        'simple_key_value_store.cc',
+        'subprocess.cc',
+        'terminator.cc',
+        'update_attempter.cc',
+        'update_check_scheduler.cc',
+        'update_manager/boxed_value.cc',
+        'update_manager/chromeos_policy.cc',
+        'update_manager/evaluation_context.cc',
+        'update_manager/event_loop.cc',
+        'update_manager/policy.cc',
+        'update_manager/real_config_provider.cc',
+        'update_manager/real_device_policy_provider.cc',
+        'update_manager/real_random_provider.cc',
+        'update_manager/real_shill_provider.cc',
+        'update_manager/real_system_provider.cc',
+        'update_manager/real_time_provider.cc',
+        'update_manager/real_updater_provider.cc',
+        'update_manager/state_factory.cc',
+        'update_manager/update_manager.cc',
+        'utils.cc',
+      ],
+    },
+    # update_engine daemon.
+    {
+      'target_name': 'update_engine',
+      'type': 'executable',
+      'dependencies': ['libupdate_engine'],
+      'sources': [
+        'main.cc',
+      ]
+    },
+    # update_engine console client.
+    {
+      'target_name': 'update_engine_client',
+      'type': 'executable',
+      'dependencies': ['libupdate_engine'],
+      'sources': [
+        'update_engine_client.cc',
+      ]
+    },
+    # server-side delta generator.
+    {
+      'target_name': 'delta_generator',
+      'type': 'executable',
+      'dependencies': ['libupdate_engine'],
+      'sources': [
+        'payload_generator/generate_delta_main.cc',
+      ]
+    },
+  ],
+  'conditions': [
+    ['USE_test == 1', {
+      'targets': [
+        # Public keys used for unit testing.
+        {
+          'target_name': 'update_engine-testkeys',
+          'type': 'none',
+          'variables': {
+            'openssl_pem_in_dir': '.',
+            'openssl_pem_out_dir': 'include/update_engine',
+          },
+          'sources': [
+            'unittest_key.pem',
+            'unittest_key2.pem',
+          ],
+          'includes': ['../common-mk/openssl_pem.gypi'],
+        },
+        # Test HTTP Server.
+        {
+          'target_name': 'test_http_server',
+          'type': 'executable',
+          'dependencies': ['libupdate_engine'],
+          'sources': [
+            'test_http_server.cc',
+          ]
+        },
+        # Main unittest file.
+        {
+          'target_name': 'update_engine_unittests',
+          'type': 'executable',
+          'dependencies': ['libupdate_engine'],
+          'includes': ['../common-mk/common_test.gypi'],
+          'defines': [
+            'SYSROOT="<(sysroot)"',
+          ],
+          'sources': [
+            'action_pipe_unittest.cc',
+            'action_processor_unittest.cc',
+            'action_unittest.cc',
+            'bzip_extent_writer_unittest.cc',
+            'certificate_checker_unittest.cc',
+            'chrome_browser_proxy_resolver_unittest.cc',
+            'connection_manager_unittest.cc',
+            'delta_performer_unittest.cc',
+            'download_action_unittest.cc',
+            'extent_ranges_unittest.cc',
+            'extent_writer_unittest.cc',
+            'fake_prefs.cc',
+            'fake_system_state.cc',
+            'file_writer_unittest.cc',
+            'filesystem_copier_action_unittest.cc',
+            'http_fetcher_unittest.cc',
+            'hwid_override_unittest.cc',
+            'mock_http_fetcher.cc',
+            'omaha_hash_calculator_unittest.cc',
+            'omaha_request_action_unittest.cc',
+            'omaha_request_params_unittest.cc',
+            'omaha_response_handler_action_unittest.cc',
+            'p2p_manager_unittest.cc',
+            'payload_generator/cycle_breaker_unittest.cc',
+            'payload_generator/delta_diff_generator_unittest.cc',
+            'payload_generator/extent_mapper_unittest.cc',
+            'payload_generator/filesystem_iterator_unittest.cc',
+            'payload_generator/full_update_generator_unittest.cc',
+            'payload_generator/graph_utils_unittest.cc',
+            'payload_generator/metadata_unittest.cc',
+            'payload_generator/tarjan_unittest.cc',
+            'payload_generator/topological_sort_unittest.cc',
+            'payload_signer_unittest.cc',
+            'payload_state_unittest.cc',
+            'postinstall_runner_action_unittest.cc',
+            'prefs_unittest.cc',
+            'simple_key_value_store_unittest.cc',
+            'subprocess_unittest.cc',
+            'terminator_unittest.cc',
+            'test_utils.cc',
+            'update_attempter_unittest.cc',
+            'update_check_scheduler_unittest.cc',
+            'update_manager/boxed_value_unittest.cc',
+            'update_manager/chromeos_policy_unittest.cc',
+            'update_manager/evaluation_context_unittest.cc',
+            'update_manager/event_loop_unittest.cc',
+            'update_manager/generic_variables_unittest.cc',
+            'update_manager/prng_unittest.cc',
+            'update_manager/real_config_provider_unittest.cc',
+            'update_manager/real_device_policy_provider_unittest.cc',
+            'update_manager/real_random_provider_unittest.cc',
+            'update_manager/real_shill_provider_unittest.cc',
+            'update_manager/real_system_provider_unittest.cc',
+            'update_manager/real_time_provider_unittest.cc',
+            'update_manager/real_updater_provider_unittest.cc',
+            'update_manager/umtest_utils.cc',
+            'update_manager/update_manager_unittest.cc',
+            'update_manager/variable_unittest.cc',
+            'utils_unittest.cc',
+            'zip_unittest.cc',
+            # Main entry point for runnning tests.
+            'testrunner.cc',
+          ],
+        },
+      ],
+    }],
+  ],
+}