anchor.diff:    '';
   
     configureFlags = [
  -    "--enable-cli"
  -    # Only a static executable is built if --enable-shared is not passed
       "--enable-shared"
  -    #"--enable-opencl"
  -    "--enable-gpl"
  -    "--enable-thread"
       "--disable-win32thread"
       "--disable-interlaced"
       "--bit-depth=${
  
positive.code: }:
  
  let
    version = "20160916";
  in
  stdenv.mkDerivation rec {
    name = "x264-${version}";
  
negative.code:         "8"
      }"
      "--chroma-format=all"
      "--enable-pic"
      "--disable-avs"
      "--disable-swscale"
  