anchor.diff:      boolEn;
   in
   stdenv.mkDerivation rec {
  -  name = "appstream-glib-0.6.5";
  +  name = "appstream-glib-0.6.13";
   
     src = fetchurl {
       url = "https://people.freedesktop.org/~hughsient/appstream-glib/"
         + "releases/${name}.tar.xz";
  -    sha256 = "b6b77540b03ca56d7a8493d5f50ded747b6033e0437d8e4c516b5228e27b2a1a";
  +    sha256 = "1a3734b2cdaab55ad63c6e3ee31026fdceb122cecae39f9f7126a0305e8836bf";
     };
   
     nativeBuildInputs = [
       #docbook_xml_dtd_43
       #docbook-xsl
       gettext
  +    gperf
       intltool
     ];
   
  
positive.code:     #"--${boolEn (snowball-stemmer != null)}-stemmer"
    ];
  
    meta = with stdenv.lib; {
      description = "Objects & helper methods to read & write AppStream metadata";
      homepage = https://github.com/hughsie/appstream-glib;
      license = licenses.lgpl21Plus;
  
negative.code:     "--enable-largefile"
      "--${boolEn (gobject-introspection != null)}-introspection"
      "--enable-nls"
      "--enable-rpath"
      "--disable-gtk-doc"
      "--disable-gtk-doc-html"
      "--disable-gtk-doc-pdf"
  