--- trouc/xfce-mcs-manager/xfce-mcs-manager.orig	2007-11-17 20:31:18.000000000 +0100
+++ trouc/xfce-mcs-manager/xfce-mcs-manager.c	2008-01-13 22:43:18.000000000 +0100
@@ -336,6 +336,9 @@
 {
     guint32 sigstate = 0;
     gsize bread = 0;
+#ifdef HAVE_SIGACTION
+    struct sigaction act;
+#endif
     
     if (G_IO_ERROR_NONE == g_io_channel_read (source, (gchar *)&sigstate,
                                               sizeof (sigstate), &bread)
@@ -345,6 +348,13 @@
         {
             case RESTART:
                 /* unload all plugins and destroy the manager */
+				/* ignore USR1 plugin until the end… */
+#ifdef HAVE_SIGACTION
+				    act.sa_handler = SIG_IGN;
+				    sigaction (SIGUSR1, &act, NULL);
+#else /* !HAVE_SIGACTION */
+				    signal (SIGUSR1, SIG_IGN);
+#endif
                 unload_plugins ();
                 mcs_manager_destroy (manager);