Builds 32-bit arm and intel for Android using gcc 4.9 against L-release.

tools/build.py

 #!/usr/bin/env python
 #
 # 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.
 #
 
 import optparse
 import os
 import re
@@ skipping 184 matching lines @@
     raise Exception('Unsupported target architecture %s' % target_arch)
 
   # Set up path to the Android NDK.
   CheckDirExists(THIRD_PARTY_ROOT, 'third party tools')
   android_tools = os.path.join(THIRD_PARTY_ROOT, 'android_tools')
   CheckDirExists(android_tools, 'Android tools')
   android_ndk_root = os.path.join(android_tools, 'ndk')
   CheckDirExists(android_ndk_root, 'Android NDK')
 
   # Set up the directory of the Android NDK cross-compiler toolchain.
-  toolchain_arch = 'arm-linux-androideabi-4.6'
+  toolchain_arch = 'arm-linux-androideabi-4.9'
   if target_arch == 'arm64':
     toolchain_arch = 'aarch64-linux-android-4.9'
   if target_arch == 'ia32':
-    toolchain_arch = 'x86-4.6'
+    toolchain_arch = 'x86-4.9'
   toolchain_dir = 'linux-x86_64'
   android_toolchain = os.path.join(android_ndk_root,
       'toolchains', toolchain_arch,
       'prebuilt', toolchain_dir, 'bin')
   CheckDirExists(android_toolchain, 'Android toolchain')
 
   return android_toolchain
 
 
 def Execute(args):
@@ skipping 328 matching lines @@
           else:
             if BuildOneConfig(options, target, target_os,
                               mode, arch, cross_build) != 0:
               return 1
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(Main())