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/socketmodule.c b/Modules/socketmodule.c
index b7b9a64..a302dc5 100644
--- a/Modules/socketmodule.c
+++ b/Modules/socketmodule.c
@@ -2860,7 +2860,7 @@
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
- 0, /* tp_compare */
+ 0, /* tp_reserved */
(reprfunc)sock_repr, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */