anchor.diff:  
       cat <<EOF > $out/bin/freenet
       #!${stdenv.shell}
  -    ${jre}/bin/java -cp $out/share/freenet/bcprov.jar:$out/share/freenet/freenet-ext.jar:$out/share/freenet/freenet.jar \\
  +    ${jdk.jre}/bin/java -cp $out/share/freenet/bcprov.jar:$out/share/freenet/freenet-ext.jar:$out/share/freenet/freenet.jar \\
         -Xmx1024M freenet.node.NodeStarter
       EOF
       chmod +x $out/bin/freenet
     '';
   
  -  meta = { 
  +  meta = {
       description = "Decentralised and censorship-resistant network";
       homepage = https://freenetproject.org/;
       license = "GPLv2+";
  
positive.code:   };
  in
  stdenv.mkDerivation {
    name = "freenet-official-20130413-eccc9b3198";
  
    src = fetchurl {
      url = https://github.com/freenet/fred-official/tarball/eccc9b3198;
  
negative.code:     sed '/antcall.*-ext/d' -i build.xml
    '';
  
    buildInputs = [ ant jdk ];
  
    buildPhase = "ant package-only";
  
  