From f275ebbf81bab40e0139791552789cb2816c930b Mon Sep 17 00:00:00 2001
From: "Christoph M. Becker" <cmbecker69@gmx.de>
Date: Wed, 24 Aug 2022 14:13:20 +0200
Subject: [PATCH] xmlRelaxNGCleanupTypes() is deprecated as of libxml2 2.10.0
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The documentation[1] suggest to call `xmlCleanupParser()` instead, but
we are not doing that for reasons[2].  Thus, we do no longer call
`xmlRelaxNGCleanupTypes()` for libxml2 ≥ 2.10.0.

[1] <https://gnome.pages.gitlab.gnome.org/libxml2/devhelp/libxml2-relaxng.html#xmlRelaxNGCleanupTypes>
[2] <https://github.com/php/php-src/commit/8742276eb3905eb97a585417000c7b8df85006d4>
---
 ext/libxml/libxml.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ext/libxml/libxml.c b/ext/libxml/libxml.c
index 21ad5df2c3ce0..5813f437d22c6 100644
--- a/ext/libxml/libxml.c
+++ b/ext/libxml/libxml.c
@@ -775,7 +775,7 @@ PHP_LIBXML_API void php_libxml_initialize(void)
 PHP_LIBXML_API void php_libxml_shutdown(void)
 {
 	if (_php_libxml_initialized) {
-#ifdef LIBXML_SCHEMAS_ENABLED
+#if defined(LIBXML_SCHEMAS_ENABLED) && LIBXML_VERSION < 21000
 		xmlRelaxNGCleanupTypes();
 #endif
 		/* xmlCleanupParser(); */