title: Error in ndk-build command on terminal (Mac)
body: <p>Here comes  my environment variable setting in (.bashrc)..</p>
  
  <pre><code>export ANDROID_SDK="/AndroidSDK/android-sdks"
  export ANDROID_NDK="/AndroidNDK/android-ndk-r8d"
  export PATH="$PATH:$ANDROID_SDK/tools:$ANDROID_SDK/platform-tools:$ANDROIDNDK"
  </code></pre>
  
  <p>when i try to run ndk-build on ternimal it display error message saying </p>
  
  <pre><code>-bash: ndk-build: command not found
  </code></pre>
  
  <p>i am just try to build San Angeles  sample example in ndk directory.</p>