Issue #1717, stage 2: remove uses of tp_compare in Modules and most
Objects.
diff --git a/Modules/pyexpat.c b/Modules/pyexpat.c
index df37589..ce72885 100644
--- a/Modules/pyexpat.c
+++ b/Modules/pyexpat.c
@@ -1622,7 +1622,7 @@
 	(printfunc)0,		/*tp_print*/
 	0,			/*tp_getattr*/
 	(setattrfunc)xmlparse_setattr,	/*tp_setattr*/
-	(cmpfunc)0,		/*tp_compare*/
+	0,			/*tp_compare*/
 	(reprfunc)0,		/*tp_repr*/
 	0,			/*tp_as_number*/
 	0,		/*tp_as_sequence*/