https://bugs.gentoo.org/920769
https://github.com/xmlsec/python-xmlsec/issues/311
https://github.com/xmlsec/python-xmlsec/pull/325
https://github.com/xmlsec/python-xmlsec/commit/67cd4ac73e4fceac4b4eb6a320067cad33f79213

From 67cd4ac73e4fceac4b4eb6a320067cad33f79213 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miro=20Hron=C4=8Dok?= <miro@hroncok.cz>
Date: Wed, 19 Jun 2024 17:43:07 +0200
Subject: [PATCH] Explicitly cast the pointer type in
 PyXmlSec_ClearReplacedNodes

Fixes https://github.com/xmlsec/python-xmlsec/issues/323
--- a/src/enc.c
+++ b/src/enc.c
@@ -204,7 +204,7 @@ static void PyXmlSec_ClearReplacedNodes(xmlSecEncCtxPtr ctx, PyXmlSec_LxmlDocume
         PYXMLSEC_DEBUGF("clear replaced node %p", n);
         nn = n->next;
         // if n has references, it will not be deleted
-        elem = PyXmlSec_elementFactory(doc, n);
+        elem = (PyXmlSec_LxmlElementPtr*)PyXmlSec_elementFactory(doc, n);
         if (NULL == elem)
             xmlFreeNode(n);
         else