title: "unknown register alias" errors when building VLC for Android on a Mac
body: <p>I'm trying to build VLC for Android on a Mac, but I get these errors:</p>
  
  <pre><code>INSTALL libavformat/libavformat.a
  {standard input}: Assembler messages:
  {standard input}:146: Error: unknown register alias 'GP'
  clang38: error: assembler command failed with exit code 1 (use -v to see invocation)
  make[1]: *** [libavcodec/arm/ac3dsp_armv6.o] Error 1
  make[1]: *** Waiting for unfinished jobs....
  {standard input}: Assembler messages:
  {standard input}:446: Error: unknown register alias 'POUT'
  {standard input}:448: Error: unknown register alias 'PIN'
  {standard input}:450: Error: unknown register alias 'PCOEF'
  </code></pre>
  
  <p>Somebody told me that I should modify <code>.configure</code> to disable asm. How would I do that? And wouldn't that ruin the performance of VLC?</p>