anchor.diff:  
   stdenv.mkDerivation rec {
     pname = "gdk-pixbuf";
  -  version = "2.42.8";
  +  version = "2.42.9";
   
     outputs = [ "out" "dev" "man" "devdoc" ]
       ++ lib.optional (stdenv.buildPlatform == stdenv.hostPlatform) "installedTests";
   
     src = fetchurl {
       url = "mirror://gnome/sources/${pname}/${lib.versions.majorMinor version}/${pname}-${version}.tar.xz";
  -    sha256 = "hKzqOsskEbKRNLMgFaWxqqYoRLGcSx74uJccawdZ9MY=";
  +    sha256 = "KPeVjnvymjLU6WNVbSQdCkGmeGWC/2pa0RZl4DR/yWI=";
     };
   
     patches = [
  
positive.code:     gobject-introspection
  
      # for man pages
      libxslt
      docbook-xsl-nons
      docbook_xml_dtd_43
    ] ++ lib.optionals stdenv.isDarwin [
      fixDarwinDylibNames
    ];
  
negative.code: , pkg-config
  , gettext
  , python3
  , docutils
  , gi-docgen
  , glib
  , libtiff
  