Fix Clank+Dart compilation.

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': {
     # We place most generated source files in LIB_DIR (rather than, say
     # SHARED_INTERMEDIATE_DIR) because it is toolset specific. This avoids
     # two problems. First, if a generated source file has architecture specific
     # code, we'll get two different files in two different directories. Second,
@@ skipping 267 matching lines @@
         '<(io_patch_cc_file)',
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
           },
        }],
         ['OS=="android"', {
           'link_settings': {
-            'libraries': [ '-llog' ],
+            'libraries': [ '-ldl', '-lrt' ],
           },
        }]
       ],
     },
     {
       # Generate snapshot bin file.
       'target_name': 'generate_snapshot_bin',
       'type': 'none',
       'toolsets':['host'],
       'dependencies': [
@@ skipping 267 matching lines @@
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }