xx1              1120 ext/gd/libgd/gd_topal.c   INT32 xx0, xx1;		/* distance increments */
xx1              1175 ext/gd/libgd/gd_topal.c 	  xx1 = inc1;
xx1              1192 ext/gd/libgd/gd_topal.c 	      dist1 += xx1;
xx1              1193 ext/gd/libgd/gd_topal.c 	      xx1 += 2 * STEP_C1 * STEP_C1;