*** D:\gerrit\technology\gui\sandbox\packages\external\boost\libs\signals\src\signal_base.cpp.orig 2012-06-22 10:34:30.000000000 -0500
--- D:\gerrit\technology\gui\sandbox\packages\external\boost\libs\signals\src\signal_base.cpp.modified 2012-06-22 10:38:58.000000000 -0500
***************
*** 141,153 ****
--- 141,159 ----
            // we can come back later to remove the iterator
            if (self->call_depth > 0) {
              self->flags.delayed_disconnect = true;
            }
            else {
              // Just remove the slot now, it's safe
+             // There is a chance that the binding has the last reference to
+             // the signal, and destroying it will destroy the signal. To prevent
+             // this from causing a problem keep a local copy of the binding
+             // during it's removal from the slot list.
+             boost::any keep_alive = (*slot)->second;
              self->slots_.erase(*slot);
+             return;
            }
          }
        }
  
        void signal_base_impl::remove_disconnected_slots() const
        { slots_.remove_disconnected_slots(); }