anchor.diff:  
     mesonFlags = [
       "-Dgtk_doc=${lib.boolToString withDocs}"
  +    "-Dintrospection=${if withIntrospection then "enabled" else "disabled"}"
     ] ++ lib.optionals (!x11Support) [
       "-Dxft=disabled" # only works with x11
  -  ] ++ lib.optionals (stdenv.buildPlatform != stdenv.hostPlatform) [
  -    "-Dintrospection=disabled"
     ];
   
     # Fontconfig error: Cannot load default config file
  
positive.code:     sha256 = "IeH1eYvN/adeq8QoBRSwiWq1b2VtTn5mAwuaJTXs3Jg=";
    };
  
    nativeBuildInputs = [
      meson ninja
      glib # for glib-mkenum
      pkg-config
      gobject-introspection
      gi-docgen
    ];
  
    buildInputs = [
  
negative.code: , meson
  , ninja
  , glib
  , python3
  , x11Support? !stdenv.isDarwin, libXft
  , withIntrospection ? (stdenv.buildPlatform == stdenv.hostPlatform)
  , gobject-introspection
  , withDocs ? (stdenv.buildPlatform == stdenv.hostPlatform)
  }:
  
  stdenv.mkDerivation rec {
    pname = "pango";
    version = "1.48.10";
  