anchor.diff:      # compiling with wxGTK causes a malloc (double free) error on darwin
       ++ stdenv.lib.optional (!stdenv.isDarwin) wxGTK;
   
  -  configureFlags = if withX then ["--with-x"] else ["--without-x"];
  +  configureFlags =
  +    (if withX then ["--with-x"] else ["--without-x"])
  +    ++ (if aquaterm then ["--with-aquaterm"] else ["--without-aquaterm"])
  +    ;
   
     postInstall = stdenv.lib.optionalString withX ''
       wrapProgram $out/bin/gnuplot \
  
positive.code:     sha256 = "1xd7gqdhlk7k1p9yyqf9vkk811nadc7m4si0q3nb6cpv4pxglpyz";
    };
  
    withX = libX11 != null && !aquaterm;
  
    buildInputs =
      [ zlib gd texinfo readline emacs lua texLive
        pango cairo pkgconfig makeWrapper ]
  
negative.code: , coreutils ? null }:
  
  assert libX11 != null -> (fontconfig != null && gnused != null && coreutils != null);
  let
    withX = libX11 != null && !aquaterm;
  in
  stdenv.mkDerivation rec {
    name = "gnuplot-4.6.3";
  
  