Issue #1717: rename tp_compare to tp_reserved.  I'll change the
type of tp_compare in a separate commit, for ease of reversion
should things go wrong.
diff --git a/Modules/_sqlite/row.c b/Modules/_sqlite/row.c
index d357efa..f9f57e9 100644
--- a/Modules/_sqlite/row.c
+++ b/Modules/_sqlite/row.c
@@ -210,7 +210,7 @@
         (printfunc)pysqlite_row_print,                  /* tp_print */
         0,                                              /* tp_getattr */
         0,                                              /* tp_setattr */
-        0,                                              /* tp_compare */
+        0,                                              /* tp_reserved */
         0,                                              /* tp_repr */
         0,                                              /* tp_as_number */
         0,                                              /* tp_as_sequence */