--- src/gui_manualdialog.c.orig	2008-11-21 16:19:15.000000000 +0100
+++ src/gui_manualdialog.c	2008-11-21 16:19:45.000000000 +0100
@@ -59,7 +59,7 @@
 	helpfile = g_strdup_printf ("%s%s%s", PACKAGE_DATA_DIR, G_DIR_SEPARATOR_S, _("MANUAL"));
 
 	g_signal_connect(G_OBJECT(manualdialog), "response",
-		GTK_SIGNAL_FUNC(gtk_widget_destroy), NULL);
+		G_CALLBACK (gtk_widget_destroy), NULL);
 
 
 	in = fopen (helpfile, "r");