anchor.diff:  }:
   
   stdenv.mkDerivation rec {
  -  name = "nftables-0.9.0";
  +  name = "nftables-0.9.1";
   
     src = fetchurl {
       url = "http://netfilter.org/projects/nftables/files/${name}.tar.bz2";
  -    multihash = "QmVRkBjAnaDLBh56CGRGDEwdoaryZC9sajqXrjRyjH4X2A";
  +    multihash = "QmYVNBforqq4SEdMr2xM2DvT6WkRSEDYDxwyMWYT9XwsM8";
       hashOutput = false;
  -    sha256 = "ad8181b5fcb9ca572f444bed54018749588522ee97e4c21922648bb78d7e7e91";
  +    sha256 = "ead3bb68ed540bfbb87a96f2b69c3d65ab0c2a0c3f6e739a395c09377d1b4fce";
     };
   
     nativeBuildInputs = [
       bison
  -    docbook2x
  -    docbook_xml_dtd_45
       flex
     ];
   
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        pgpsigUrl = map (n: "${n}.sig") src.urls;
        pgpKeyFingerprint = "C09D B206 3F1D 7034 BA61  52AD AB46 55A1 26D2 92E4";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
  
negative.code:   configureFlags = [
      "--sysconfdir=/etc"
      "--localstatedir=/var"
      "--disable-man-doc"  # No asciidoc support
      "--with-xtables"
      "--with-json"
    ];
  