libnotify: enable gobject introspection

pkgs/development/libraries/libnotify/default.nix

@@ -1,4 +1,5 @@
-{ stdenv, fetchurl, pkgconfig, automake, autoconf, libtool, glib, gdk_pixbuf }:
+{ stdenv, fetchurl, pkgconfig, automake, autoconf, libtool
+, glib, gdk_pixbuf, gobjectIntrospection, autoreconfHook }:
 
 stdenv.mkDerivation rec {
   ver_maj = "0.7";
@@ -9,23 +10,15 @@ stdenv.mkDerivation rec {
     url = "mirror://gnome/sources/libnotify/${ver_maj}/${name}.tar.xz";
     sha256 = "0dyq8zgjnnzcah31axnx6afb21kl7bks1gvrg4hjh3nk02j1rxhf";
   };
-  src_m4 = fetchurl {
-    url = "mirror://gentoo/distfiles/introspection-20110205.m4.tar.bz2";
-    sha256 = "1cnqh7aaji648nfd5537v7xaak8hgww3bpifhwam7bl0sc3ad523";
-  };
 
   # see Gentoo ebuild - we don't need to depend on gtk+(2/3)
-  preConfigure = ''
-    cd m4
-    tar xvf ${src_m4}
-    cd ..
-
+  preAutoreconf = ''
     sed -i -e 's:noinst_PROG:check_PROG:' tests/Makefile.am || die
     sed -i -e '/PKG_CHECK_MODULES(TESTS/d' configure.ac || die
-    AT_M4DIR=. autoreconf
   '';
 
-  buildInputs = [ pkgconfig automake autoconf glib gdk_pixbuf ];
+  buildInputs = [ pkgconfig automake autoconf autoreconfHook
+                  libtool glib gdk_pixbuf gobjectIntrospection ];
 
   meta = {
     homepage = http://galago-project.org/; # very obsolete but found no better