need_to_notify   1022 gc/mark.c      		    GC_bool need_to_notify = FALSE;
need_to_notify   1030 gc/mark.c      		    if (0 == GC_helper_count) need_to_notify = TRUE;
need_to_notify   1036 gc/mark.c      		    if (need_to_notify) GC_notify_all_marker();