Index: main.c
===================================================================
--- main.c	(revision 24156)
+++ main.c	(working copy)
@@ -120,6 +120,30 @@
       g_print ("%s\n", _("Copyright (c) 2004-2006"));
       g_print ("\t%s\n\n", _("The Thunar development team. All rights reserved."));
       g_print ("%s\n\n", _("Written by Benedikt Meurer <benny@xfce.org>."));
+      g_print ("%s\n", _("Build configuration and supported features:"));
+      g_print ("* %s    ", _("D-BUS support:      "));
+#if defined(HAVE_DBUS)
+      g_print ("%s\n", _("Yes"));
+#else
+      g_print ("%s\n", _("No"));
+#endif
+      g_print ("* %s    ", _("Volume Manager:     "));
+#if defined(THUNAR_VFS_VOLUME_IMPL_HAL)
+      g_print ("HAL\n");
+#elif defined(THUNAR_VFS_VOLUME_IMPL_FREEBSD)
+      g_print ("FreeBSD\n");
+#else
+      g_print ("%s\n", _("None"));
+#endif
+      g_print ("* %s    ", _("File System Monitor:"));
+#if defined(HAVE_FAMNOEXISTS)
+      g_print ("Gamin\n");
+#elif defined(HAVE_FAM_H)
+      g_print ("FAM\n");
+#else
+      g_print ("%s\n", _("None"));
+#endif
+      g_print ("\n");
       g_print (_("Please report bugs to <%s>."), PACKAGE_BUGREPORT);
       g_print ("\n");
       return EXIT_SUCCESS;