DestroyFxThreadSet 2904 magick/fx.c          return(DestroyFxThreadSet(fx_info));
DestroyFxThreadSet 2970 magick/fx.c          fx_info=DestroyFxThreadSet(fx_info);
DestroyFxThreadSet 3065 magick/fx.c      fx_info=DestroyFxThreadSet(fx_info);