Disable dead code stripping for mksnapshot

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 488 matching lines @@
             '<@(_outputs)',
             'CORE',
             '<@(library_files)'
           ],
         },
       ],
     },
     {
       'target_name': 'mksnapshot',
       'type': 'executable',
+      'configurations': {
+        'Release': {
+          'conditions': [
+            ['OS=="mac"', {
+              'xcode_settings': {
+                # Dead code stripping is normally enabled for release mode,
+                # but it causes mksnapshot to crash in some situations.
+                # http://code.google.com/p/v8/issues/detail?id=404
+                'DEAD_CODE_STRIPPING': 'NO',
+              },
+            }],
+          ],
+        },
+      },
       'dependencies': [
         'v8_nosnapshot',
       ],
       'include_dirs+': [
         '../../src',
       ],
       'sources': [
         '../../src/mksnapshot.cc',
       ],
     },
     {
       'target_name': 'v8_shell',
       'type': 'executable',
       'dependencies': [
         'v8'
       ],
       'sources': [
         '../../samples/shell.cc',
       ],
       'conditions': [
         [ 'OS=="win"', {
           # This could be gotten by not setting chromium_code, if that's OK.
           'defines': ['_CRT_SECURE_NO_WARNINGS'],
         }],
       ],
     },
   ],
 }