title: Android ndk std::to_string support
body: <p>I'm using android NDK r9d and toolchain 4.8 but I'm not able to use std::to_string function, compiler throws this error:</p>
  
  <pre><code> error: 'to_string' is not a member of 'std'
  </code></pre>
  
  <p>Is this function not supported on android ndk? I try <code>APP_CPPFLAGS := -std=c++11</code> with no luck.</p>