Fix GCC 4.4.4 build....

tools/gyp/v8.gyp

 # Copyright 2009 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 349 matching lines @@
         '../../src/global-handles.cc',
         '../../src/global-handles.h',
         '../../src/globals.h',
         '../../src/handles-inl.h',
         '../../src/handles.cc',
         '../../src/handles.h',
         '../../src/hashmap.cc',
         '../../src/hashmap.h',
         '../../src/heap-inl.h',
         '../../src/heap.cc',
+        '../../src/heap-gcchack.cc',
         '../../src/heap.h',
         '../../src/heap-profiler.cc',
         '../../src/heap-profiler.h',
         '../../src/ic-inl.h',
         '../../src/ic.cc',
         '../../src/ic.h',
         '../../src/interpreter-irregexp.cc',
         '../../src/interpreter-irregexp.h',
         '../../src/jump-target-inl.h',
         '../../src/jump-target.cc',
@@ skipping 360 matching lines @@
       ],
       'conditions': [
         ['OS=="win"', {
           # This could be gotten by not setting chromium_code, if that's OK.
           'defines': ['_CRT_SECURE_NO_WARNINGS'],
         }],
       ],
     },
   ],
 }