Add support for working with large files, in dart:io.

runtime/bin/bin.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'gen_source_dir': '<(SHARED_INTERMEDIATE_DIR)',
 
     'io_cc_file': '<(gen_source_dir)/io_gen.cc',
     'io_patch_cc_file': '<(gen_source_dir)/io_patch_gen.cc',
@@ skipping 106 matching lines @@
     },
     {
       'target_name': 'libdart_builtin',
       'type': 'static_library',
       'toolsets':['target','host'],
       'dependencies': [
         'generate_builtin_cc_file#host',
         'generate_io_cc_file#host',
         'generate_io_patch_cc_file#host',
       ],
+      'cflags': [
+        '-D_FILE_OFFSET_BITS=64',

[Søren Gjesse, 2013/11/19 10:15:49]

Does Windows use this as well? If not we should only define this for the
platforms that uses it.

[Anders Johnsen, 2013/11/19 10:43:39]

Wasn't needed anymore. Removed.

+      ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'log_android.cc',
         'log_linux.cc',
         'log_macos.cc',
         'log_win.cc',
       ],
       'includes': [
@@ skipping 534 matching lines @@
                 '-fPIC',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }