Allow compiling with strict aliasing enabled on GCC 4.4.

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 90 matching lines @@
               '-O2',
               '-Os',
             ],
             'cflags': [
               '-fomit-frame-pointer',
               '-O3',
             ],
             'conditions': [
               [ 'gcc_version==44', {
                 'cflags': [
-                  # Avoid gcc 4.4 strict aliasing issues in dtoa.c
-                  '-fno-strict-aliasing',
                   # Avoid crashes with gcc 4.4 in the v8 test suite.
                   '-fno-tree-vrp',
                 ],
               }],
             ],
           }],
          ['OS=="freebsd" or OS=="openbsd"', {
            'cflags': [ '-I/usr/local/include' ],
          }],
           ['OS=="mac"', {
@@ skipping 617 matching lines @@
       ],
       'conditions': [
         ['OS=="win"', {
           # This could be gotten by not setting chromium_code, if that's OK.
           'defines': ['_CRT_SECURE_NO_WARNINGS'],
         }],
       ],
     },
   ],
 }