$NetBSD: patch-statsmodels_tsa_statespace___filters___univariate.pyx.in,v 1.1 2023/12/10 09:41:36 wiz Exp $

Cython 3 compatibility.
https://github.com/statsmodels/statsmodels/pull/8961/

--- statsmodels/tsa/statespace/_filters/_univariate.pyx.in.orig	2023-04-26 12:14:01.000000000 +0000
+++ statsmodels/tsa/statespace/_filters/_univariate.pyx.in
@@ -2,6 +2,7 @@
 #cython: boundscheck=False
 #cython: wraparound=False
 #cython: cdivision=False
+#cython: cpow=True
 """
 State Space Models