title: Understanding architecture results from lipo tool
body: <p>I built an Xcode project for armv7, armv7s arm64. I ran <code>lipo -info</code> on the resulting .a file:</p>
  
  <blockquote>
    <p>Architectures in the fat file: Release-iphoneos/libhlsl2glsl.a are:
    armv7 (cputype (12) cpusubtype (11)) (cputype (16777228) cpusubtype
    (0))</p>
  </blockquote>
  
  <p>What is this telling me?</p>