--- PackageKit-0.7.3/backends/smart/pk-backend-smart.c.orig	2012-04-09 15:51:47.815045302 +0200
+++ PackageKit-0.7.3/backends/smart/pk-backend-smart.c	2012-04-09 15:52:44.828441254 +0200
@@ -20,6 +20,7 @@
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include <stdio.h>
 #include <pk-backend.h>
 #include <pk-backend-spawn.h>
 
@@ -492,6 +493,25 @@
 }
 
 /**
+ * pk_backend_what_provides:
+ */
+static void
+backend_what_provides (PkBackend *backend, PkBitfield filters, PkProvidesEnum provides, gchar **values)
+{
+	gchar *search_tmp;
+	gchar *filters_text;
+	const gchar *provides_text;
+
+	provides_text = pk_provides_enum_to_text (provides);
+	filters_text = pk_filter_bitfield_to_string (filters);
+	search_tmp = g_strjoinv ("&", values);
+	fprintf(stderr,"prova: %s\n", provides_text);
+	pk_backend_spawn_helper (spawn, BACKEND_FILE, "what-provides", filters_text, provides_text, search_tmp, NULL);
+	g_free (filters_text);
+	g_free (search_tmp);
+}
+
+/**
  * pk_backend_get_description:
  */
 gchar *
--- PackageKit-0.6.13.orig//backends/smart/smartBackend.py	2011-04-24 13:53:16.796854052 +0200
+++ PackageKit-0.6.13/backends/smart/smartBackend.py	2011-04-24 15:03:58.644185808 +0200
@@ -551,6 +551,23 @@
         self._post_process_package_list(filters)
         self._show_package_list()
 
+    @needs_cache
+    def what_provides(self, filters, provides_type, values):
+        self.status(STATUS_QUERY)
+        self.allow_cancel(True)
+        if provides_type != PROVIDES_ANY:
+            self.error(ERROR_NOT_SUPPORTED,
+                       "provide %s not supported" % provides_type)
+            return
+        for value in values:
+            providers = self.ctrl.getCache().getProvides(value)
+            for provider in providers:
+                for package in provider.packages:
+                    if self._package_passes_filters(package, filters):
+                        self._add_package(package)
+        self._post_process_package_list(filters)
+        self._show_package_list()
+
     def refresh_cache(self, force):
         # TODO: use force ?
         self.status(STATUS_REFRESH_CACHE)