HWB_UNDEFINED     343 gd/libgd/gd.c  		RETURN_HWB(HWB_UNDEFINED, w, b);
HWB_UNDEFINED     368 gd/libgd/gd.c  	if ((HWB1.H == HWB_UNDEFINED) || (HWB2.H == HWB_UNDEFINED)) {
HWB_UNDEFINED     399 gd/libgd/gd.c  	if (h == HWB_UNDEFINED) {