anchor.diff:      "install-dev"
     ];
   
  -  # This breaks sometimes
     parallelInstall = false;
   
  +  passthru = {
  +    srcVerification = fetchurl {
  +      inherit (src)
  +        outputHash
  +        outputHashAlgo
  +        urls;
  +      failEarly = true;
  +      pgpsigUrls = map (n: "${n}.sig") src.urls;
  +      pgpKeyFingerprint = "9893 A827 C19F 7D96 164A  38FF ADE8 2947 F475 FA1D";
  +    };
  +  };
  +
     meta = with stdenv.lib; {
  +    description = "SGI XFS utilities";
       homepage = http://xfs.org/;
  -    description = "SGI XFS utilities";
       license = licenses.lgpl21;
  -    platforms = platforms.linux;
  -    maintainers = with maintainers; [ wkennington ];
  +    maintainers = with maintainers; [
  +      wkennington
  +    ];
  +    platforms = with platforms;
  +      x86_64-linux;
     };
   }
  
positive.code: }:
  
  stdenv.mkDerivation rec {
    name = "xfsprogs-4.5.0";
  
    src = fetchurl {
      urls = map (dir: "ftp://oss.sgi.com/projects/xfs/${dir}/${name}.tar.gz")
        [ "cmd_tars" "previous" ];
      sha256 = "1y49rwvbbvqdq2a1x7p5i05bcfyv6xhmrfwafl6vvvw494qyp6z4";
    };
  
    nativeBuildInputs = [
  
negative.code: 
    patches = [
      (fetchTritonPatch {
        rev = "f2cc828cd4a47b008b7503974f35bcdd2a9c74b3";
        file = "xfsprogs/xfsprogs-4.7.0-sharedlibs.patch";
        sha256 = "983b08b2a4a4ee91be21f14063167a3752554b41fd78aead6dfd6ac38702a5a7";
      })
      (fetchTritonPatch {
        rev = "f2cc828cd4a47b008b7503974f35bcdd2a9c74b3";
        file = "xfsprogs/xfsprogs-4.7.0-libxcmd-link.patch";
        sha256 = "06cced4aeeb9a2d8c90e6d6fd1ff6571020122dbfe62140513f52bd82bf9abe8";
      })
    ];
  
  