anchor.diff:  { stdenv
   , fetchurl
  -, file
   , gettext
  -, intltool
   , lib
  -#, meson
  -#, ninja
  +, meson
  +, ninja
   
   , glib
   , gobject-introspection
  
positive.code:   src = fetchurl {
      url = "mirror://gnome/sources/grilo/${channel}/${name}.tar.xz";
      hashOutput = false;
      sha256 = "7c6964053b42574c2f14715d2392a02ea5cbace955eb73e067c77aa3e43b066e";
    };
  
    nativeBuildInputs = [
      file
      gettext
      intltool
      #meson
      #ninja
      vala
    ];
  
  
negative.code: }:
  
  let
    channel = "0.3";
    version = "${channel}.7";
  in
  stdenv.mkDerivation rec {
    name = "grilo-${version}";
  