anchor.diff:  
     buildInputs = with gnome3; [
       dbus libgcrypt pam python gtk3 gconf libgnome_keyring
  -    pango gcr gdk_pixbuf atk p11_kit
  +    pango gcr gdk_pixbuf atk p11_kit makeWrapper
     ];
   
     propagatedBuildInputs = [ glib libtasn1 libxslt ];
  
positive.code: { stdenv, fetchurl, pkgconfig, dbus, libgcrypt, libtasn1, pam, python, glib, libxslt
  , intltool, pango, gcr, gdk_pixbuf, atk, p11_kit
  , docbook_xsl_ns, docbook_xsl, gnome3 }:
  
  stdenv.mkDerivation rec {
  
negative.code:     "--with-pkcs11-modules=$$out/lib/pkcs11/"
    ];
  
    postInstall = ''
      wrapProgram "$out/bin/gnome-keyring" \
        --prefix XDG_DATA_DIRS : "${glib}/share:$out/share"
      wrapProgram "$out/bin/gnome-keyring-daemon" \
        --prefix XDG_DATA_DIRS : "${glib}/share:$out/share"
    '';
  
    meta = with stdenv.lib; {
      platforms = platforms.linux;
    };
  