title: Android NDK and LOCAL_ARM_MODE flag
body: <p>In my current Android native code build setup, APP_ABI is defined to armeabi-v7a in Application.mk. For some of the libraries that I am building, I see that LOCAL_ARM_MODE is defined as arm in Android.mk.</p>
  
  <p>I need to extend this setup to build for x86 as well. From another post, it appears using "APP_ABI = all" is a better solution. I am just wondering if LOCAL_ARM_MODE must be changed as well. What does this flag do anyway?</p>