anchor.diff:  
     enableParallelBuilding = true;
   
  -  doCheck = true;
  -  checkInputs = [ dejagnu ];
  +  doCheck = !isCross;
  +  checkInputs = lib.optionals (!isCross) [ dejagnu ];
   
     postFixup = lib.optionalString guiSupport ''
       wrapProgram "$out/bin/poke-gui" \
  
positive.code:     texinfo
    ] ++ lib.optional guiSupport makeWrapper;
  
    buildInputs = [ boehmgc dejagnu readline ]
    ++ lib.optional guiSupport tk
    ++ lib.optional miSupport json_c
    ++ lib.optional nbdSupport libnbd
    ++ lib.optional textStylingSupport gettext;
  
    configureFlags = lib.optionals guiSupport [
      "--with-tcl=${tcl}/lib"
  
negative.code: , dejagnu
  }:
  
  let
    isCross = stdenv.hostPlatform != stdenv.buildPlatform;
  in stdenv.mkDerivation rec {
    pname = "poke";
    version = "1.0";
  
  