* fports.c: include gc.h.

(fport_flush, fport_close): silently ignore I/O errors when
	closing a port during gc.  it's better than aborting in scm_error.

	* throw.c (scm_handle_by_message): remove obsolete comment.

libguile/throw.c

@@ -485,9 +485,6 @@ scm_handle_by_message (void *handler_data, SCM tag, SCM args)
     }
 
   handler_message (handler_data, tag, args);
-  /* try to flush the error message first before the rest of the
-     ports: if any throw error, it currently causes a bus
-     exception.  */
   exit (2);
 }