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/Objects/rangeobject.c b/Objects/rangeobject.c
index 68f06a4..01114bb 100644
--- a/Objects/rangeobject.c
+++ b/Objects/rangeobject.c
@@ -289,7 +289,7 @@
 	0,			/* tp_print */
 	0,			/* tp_getattr */
 	0,			/* tp_setattr */
-	0,			/* tp_compare */
+	0,			/* tp_reserved */
 	(reprfunc)range_repr,	/* tp_repr */
 	0,			/* tp_as_number */
 	&range_as_sequence,	/* tp_as_sequence */
@@ -385,7 +385,7 @@
 	0,                                      /* 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 */
@@ -537,7 +537,7 @@
 	0,                                      /* 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 */