Revised CL for customisable logging (replacing printfs).

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': {
     'crypto_cc_file': '<(SHARED_INTERMEDIATE_DIR)/crypto_gen.cc',
     'io_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_gen.cc',
     'io_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_patch_gen.cc',
     'json_cc_file': '<(SHARED_INTERMEDIATE_DIR)/json_gen.cc',
@@ skipping 250 matching lines @@
         'generate_uri_cc_file',
         'generate_utf_cc_file',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'builtin_natives.cc',
         'builtin.h',
         'io_natives.h',
+        'log_android.cc',
+        'log_linux.cc',
+        'log_macos.cc',
+        'log_win.cc',
       ],
       'includes': [
         'builtin_impl_sources.gypi',
         '../platform/platform_sources.gypi',
       ],
       'sources/': [
         ['exclude', '_test\\.(cc|h)$'],
       ],
       'conditions': [
         ['OS=="win"', {
@@ skipping 103 matching lines @@
         '<(io_patch_cc_file)',
         '<(json_cc_file)',
         '<(uri_cc_file)',
         '<(utf_cc_file)',
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
           },
-       }]],
+       }],
+        ['OS=="android"', {
+          'link_settings': {
+            'libraries': [ '-llog' ],
+          },
+       }]
+      ],
     },
     {
       # Generate snapshot bin file.
       'target_name': 'generate_snapshot_bin',
       'type': 'none',
       'dependencies': [
         'gen_snapshot',
       ],
       'actions': [
         {
@@ skipping 203 matching lines @@
         ['OS=="mac"', {
           'xcode_settings': {
             'OTHER_LDFLAGS': [ '-undefined', 'dynamic_lookup' ],
           },
         }],
       ],
     },
   ],
 }