Split out libplatform into a separate libary

tools/gyp/v8.gyp

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 514 matching lines @@
         '../../src/interface.h',
         '../../src/interpreter-irregexp.cc',
         '../../src/interpreter-irregexp.h',
         '../../src/isolate.cc',
         '../../src/isolate.h',
         '../../src/json-parser.h',
         '../../src/json-stringifier.h',
         '../../src/jsregexp-inl.h',
         '../../src/jsregexp.cc',
         '../../src/jsregexp.h',
-        # TODO(jochen): move libplatform/ files to their own target.
-        '../../src/libplatform/default-platform.cc',
-        '../../src/libplatform/default-platform.h',
-        '../../src/libplatform/task-queue.cc',
-        '../../src/libplatform/task-queue.h',
-        '../../src/libplatform/worker-thread.cc',
-        '../../src/libplatform/worker-thread.h',
         '../../src/list-inl.h',
         '../../src/list.h',
         '../../src/lithium-allocator-inl.h',
         '../../src/lithium-allocator.cc',
         '../../src/lithium-allocator.h',
         '../../src/lithium-codegen.cc',
         '../../src/lithium-codegen.h',
         '../../src/lithium.cc',
         '../../src/lithium.h',
         '../../src/liveedit.cc',
@@ skipping 650 matching lines @@
         }],
         ['component=="shared_library"', {
           'defines': [
             'BUILDING_V8_SHARED',
             'V8_SHARED',
           ],
         }],
       ],
     },
     {
+      'target_name': 'v8_libplatform',
+      'type': 'static_library',
+      'variables': {
+        'optimize': 'max',
+      },
+      'dependencies': [
+        'v8_libbase',
+      ],
+      'include_dirs+': [
+        '../..',
+      ],
+      'sources': [
+        '../../include/libplatform/libplatform.h',
+        '../../src/libplatform/default-platform.cc',
+        '../../src/libplatform/default-platform.h',
+        '../../src/libplatform/task-queue.cc',
+        '../../src/libplatform/task-queue.h',
+        '../../src/libplatform/worker-thread.cc',
+        '../../src/libplatform/worker-thread.h',
+      ],
+      'conditions': [
+        ['want_separate_host_toolset==1', {
+          'toolsets': ['host', 'target'],
+        }, {
+          'toolsets': ['target'],
+        }],
+        ['component=="shared_library"', {
+          'defines': [
+            'BUILDING_V8_SHARED',
+            'V8_SHARED',
+          ],
+        }],
+      ],
+    },
+    {
       'target_name': 'natives_blob',
       'type': 'none',
       'conditions': [
         [ 'v8_use_external_startup_data==1', {
           'dependencies': ['js2c'],
           'actions': [{
             'action_name': 'concatenate_natives_blob',
             'inputs': [
               '../../tools/concatenate-files.py',
               '<(SHARED_INTERMEDIATE_DIR)/libraries.bin',
@@ skipping 153 matching lines @@
               '../../tools/gen-postmortem-metadata.py',
               '<@(_outputs)',
               '<@(heapobject_files)'
             ]
           }
         ]
     },
     {
       'target_name': 'mksnapshot',
       'type': 'executable',
-      'dependencies': ['v8_base', 'v8_nosnapshot'],
+      'dependencies': ['v8_base', 'v8_nosnapshot', 'v8_libplatform'],
       'include_dirs+': [
         '../..',
       ],
       'sources': [
         '../../src/mksnapshot.cc',
       ],
       'conditions': [
         ['want_separate_host_toolset==1', {
           'toolsets': ['host'],
         }, {
           'toolsets': ['target'],
         }],
         ['v8_compress_startup_data=="bz2"', {
           'libraries': [
             '-lbz2',
           ]
         }],
       ],
     },
   ],
 }