anchor.diff:  }:
   
   stdenv.mkDerivation rec {
  -  name = "xfsprogs-4.5.0";
  +  name = "xfsprogs-4.7.0";
   
     src = fetchurl {
       urls = map (dir: "ftp://oss.sgi.com/projects/xfs/${dir}/${name}.tar.gz")
         [ "cmd_tars" "previous" ];
  -    sha256 = "1y49rwvbbvqdq2a1x7p5i05bcfyv6xhmrfwafl6vvvw494qyp6z4";
  +    sha256 = "88580bb3e6847c3edef436703a4fae403fc19b20739db4c31166ee4b256178d7";
     };
   
     nativeBuildInputs = [
  
positive.code: 
    patches = [
      (fetchTritonPatch {
        rev = "07aa30f6f5e0f4a08903cf93cdc1825d75a81404";
        file = "xfsprogs/xfsprogs-4.3.0-sharedlibs.patch";
        sha256 = "23bf3127cd1eab6e96055d2a5f3ae61f417a8d4ae52d5c421be2bbb05576bb46";
      })
    ];
  
  
negative.code:     "install-dev"
    ];
  
    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/;
      license = licenses.lgpl21;
      maintainers = with maintainers; [
        wkennington
      ];
      platforms = with platforms;
        x86_64-linux;
    };
  }
  