anchor.diff:      (builtins.attrNames (builtins.removeAttrs x helperArgNames));
     sourceInfo = rec {
       baseName="atanks";
  -    version="4.9";
  +    version = "6.0";
       name="${baseName}-${version}";
       project="${baseName}";
       url="mirror://sourceforge/project/${project}/${baseName}/${name}/${name}.tar.gz";
  -    hash="015nwh8jk4k24ci6ilihii8idkyf6g266r4vl50csvykc82slrvd";
  +    sha256 = "0460zwzd800vcgsmd1dzb7j5wcy3lf9hsdw152f6p2mbd0nq5pds";
     };
   in
   rec {
     src = a.fetchurl {
       url = sourceInfo.url;
  -    sha256 = sourceInfo.hash;
  +    sha256 = sourceInfo.sha256;
     };
   
     inherit (sourceInfo) name version;
  
positive.code:     ];
      platforms = with a.lib.platforms;
        linux;
    };
    passthru = {
      updateInfo = {
        downloadPage = "http://sourceforge.net/projects/atanks/files/atanks/";
      };
    };
  }) x
  
  
negative.code:   fixInstall = a.fullDepEntry (''
      sed -e "s@INSTALL=.*bin/install @INSTALL=install @" -i Makefile
      sed -e "s@-g 0 -m ... -o 0@@" -i Makefile
      sed -e 's@/usr/@'"$out"'@g' -i Makefile
    '') ["doUnpack" "minInit"];
        
    meta = {
  