y4               4278 ext/gd/gd.c    	int x1, y1, x2, y2, x3, y3, x4, y4;
y4               4331 ext/gd/gd.c    			y4 = new_y(char_bbox.urx, char_bbox.lly) + cur_y;
y4               4335 ext/gd/gd.c    			str_bbox.lly = min(str_bbox.lly, min(y1, min(y2, min(y3, y4))));
y4               4337 ext/gd/gd.c    			str_bbox.ury = max(str_bbox.ury, max(y1, max(y2, max(y3, y4))));