anchor.diff: -{ fetchurl
  +{ fetchFromGitLab
   , stdenv
  -, autoreconfHook
  +, meson
  +, ninja
   , pkgconfig
   , gettext
   , libxml2
  
positive.code:     yelp-tools
      appstream
      wrapGAppsHook
    ];
  
    buildInputs = [
  
negative.code:     librsvg
      adwaita-icon-theme
      gspell
      gnome-desktop
      dbus # only needed to find the service directory
      texlive.bin.core # kpathsea for DVI support
      t1lib
    ] ++ stdenv.lib.optional supportXPS libgxps
      ++ stdenv.lib.optionals supportMultimedia (with gst_all_1; [
        gstreamer gst-plugins-base gst-plugins-good gst-plugins-bad gst-plugins-ugly gst-libav ]);
  
    mesonFlags = [
      "-Dauto_features=enabled"
      "-Dnautilus=false"
      "-Dps=enabled"
      "-Dgtk_doc=false"
    ];
  
    NIX_CFLAGS_COMPILE = "-I${glib.dev}/include/gio-unix-2.0";
  