anchor.diff:  
     configurePhase = ''
       makeFlagsArray=( PREFIX=$out SYSCONFDIR=$out/etc PYTHON=${python}/bin/python )
  +  '';
  +
  +  postInstall = ''
  +    # ffmpeg is used for post-processing and fixups
  +    wrapProgram $out/bin/youtube-dl --prefix PATH : "${ffmpeg}/bin"
     '';
   
     meta = {
  
positive.code: { stdenv, fetchurl, python, zip, pandoc }:
  
  let
    version = "2015.03.24";
  
negative.code:     sha256 = "1m462hcgizdp59s9h62hjwhq4vjrgmck23x2bh5jvb9vjpcfqjxv";
    };
  
    buildInputs = [ python makeWrapper ];
    nativeBuildInputs = [ zip pandoc ];
  
    patchPhase = ''
  