HWB_UNDEFINED     347 ext/gd/libgd/gd.c 		RETURN_HWB(HWB_UNDEFINED, w, b);
HWB_UNDEFINED     372 ext/gd/libgd/gd.c 	if ((HWB1.H == HWB_UNDEFINED) || (HWB2.H == HWB_UNDEFINED)) {
HWB_UNDEFINED     403 ext/gd/libgd/gd.c 	if (h == HWB_UNDEFINED) {