xx2              1121 ext/gd/libgd/gd_topal.c   register INT32 xx2;
xx2              1179 ext/gd/libgd/gd_topal.c 	      xx2 = inc2;
xx2              1187 ext/gd/libgd/gd_topal.c 		  dist2 += xx2;
xx2              1188 ext/gd/libgd/gd_topal.c 		  xx2 += 2 * STEP_C2 * STEP_C2;