anchor.diff:      optionalString;
   in
   stdenv.mkDerivation rec {
  -  name = "busybox-1.28.4";
  +  name = "busybox-1.29.1";
   
     src = fetchurl {
       urls = [
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha1Urls = map (n: "${n}.sign") src.urls;
        pgpKeyFingerprint = "C9E9 416F 76E6 10DB D09D  040F 47B7 0C55 ACC9 965B";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code:       "http://sources.openelec.tv/mirror/busybox/${name}.tar.bz2"
      ];
      hashOutput = false;
      sha256 = "fc250730ea16d28839bfecda3c431683fa6bd4273ffca6b632cbeb3556c914c3";
    };
  
    patches = [
  