anchor.diff:      "--with-tcsetpgrp"
     ];
   
  -  nativeBuildInputs = [
  -    perl
  -  ];
  -
  -  buildInputs = [
  -    coreutils
  -    gdbm
  -    ncurses
  -    pcre
  -  ] ++ optionals (!stdenv.cc.isGNU) [
  -    libiconv
  -  ];
  -
     postInstall = ''
       mkdir -p $out/share
       tar xf ${documentation} -C $out/share
  
positive.code:   '';
  
    doCheck = true;
    enableParallelBuilding = true;
  
    meta = with stdenv.lib; {
      description = "The Z command shell";
  
negative.code:     sha256 = "0dsr450v8nydvpk8ry276fvbznlrjgddgp7zvhcw4cv69i9lr4ps";
    };
  
    nativeBuildInputs = [
      perl
    ];
  
    buildInputs = [
      coreutils
      gdbm
      ncurses
      pcre
    ] ++ optionals (!stdenv.cc.isGNU) [
      libiconv
    ];
  
    postPhase = ''
      patchShebangs ./Misc/
      patchShebangs ./Util/
    '' +
  