anchor.diff:    '';
   
     installPhase = ''
  -    mkdir -pv $out/bin/
  +    mkdir -p $out/bin/
       cp g500-control $out/bin/
     '';
  -  
  +
     meta = {
       homepage = http://code.google.com/p/g500-control/;
       description = "Configure Logitech G500's internal profile under Linux";
       license = stdenv.lib.licenses.gpl2;
       platforms = stdenv.lib.platforms.linux;
  +    maintainers = with stdenv.lib.maintainers; [ the-kenny ];
     };
   }
   
  
positive.code:     sha256 = "1xlg9lpxnk3228k81y1i6jjh4df1p4jh64g54w969g6a6v6dazvb";
    };
  
    buildInputs = [ coreutils ];
    
    unpackPhase = ''
      mkdir -pv g500-control
      tar -C g500-control/ -xf $src
    '';
  
  
negative.code: { stdenv, fetchurl }:
  
  stdenv.mkDerivation {
    name = "g500-control-0.0.1";
  
    src = fetchurl {
  