Explicitly include defaults.cc in the shared_library gyp target.

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 43 matching lines @@
             'v8_base.<(v8_target_arch)',
             'v8_nosnapshot.<(v8_target_arch)',
           ],
         }],
         ['component=="shared_library"', {
           'type': '<(component)',
           'sources': [
             # Note: on non-Windows we still build this file so that gyp
             # has some sources to link into the component.
             '../../src/v8dll-main.cc',
+            '../../src/defaults.cc',
+          ],
+          'include_dirs': [
+            '../../include',
           ],
           'defines': [
             'V8_SHARED',
             'BUILDING_V8_SHARED',
           ],
           'direct_dependent_settings': {
             'defines': [
               'V8_SHARED',
               'USING_V8_SHARED',
             ],
@@ skipping 973 matching lines @@
         }],
         ['v8_compress_startup_data=="bz2"', {
           'libraries': [
             '-lbz2',
           ]
         }],
       ],
     },
   ],
 }