https://bugs.gentoo.org/907226

From 37913d006d96a6bdcb963f4ca4889888dcce6094 Mon Sep 17 00:00:00 2001
From: Frederik Seiffert <frederik@algoriddim.com>
Date: Wed, 3 May 2023 13:49:09 +0200
Subject: [PATCH] Fix GSXML compatibility with libxml2 v2.11.0

Fixes #294.
--- a/Source/Additions/GSXML.m
+++ b/Source/Additions/GSXML.m
@@ -2671,10 +2671,12 @@ + (void) initialize
                   return NULL;
                 }
               ret->owner = 1;
+#if LIBXML_VERSION < 21100
               if (ret->checked == 0)
                 {
                   ret->checked = 1;
                 }
+#endif
             }
         }
     }