anchor.diff:      install_name_tool -change libgs.dylib.${version} $out/lib/libgs.dylib.${version} $out/bin/gs
     '';
   
  -  passthru = { inherit version; };
  -
     meta = {
       homepage = "https://www.ghostscript.com/";
       description = "PostScript interpreter (mainline version)";
  
positive.code: 
    enableParallelBuilding = true;
  
    nativeBuildInputs = [ pkgconfig autoconf ];
    buildInputs =
      [ zlib expat openssl
        libjpeg libpng libtiff freetype fontconfig libpaper jbig2dec
  
negative.code: { config, stdenv, lib, fetchurl, pkg-config, zlib, expat, openssl, autoconf
  , libjpeg, libpng, libtiff, freetype, fontconfig, libpaper, jbig2dec
  , libiconv, ijs, lcms2, fetchpatch
  , cupsSupport ? config.ghostscript.cups or (!stdenv.isDarwin), cups ? null
  