From 4d916f4d56b8f821a374e1fc5e2b8d9aacaf9ef5 Mon Sep 17 00:00:00 2001
From: Charlie Savage <cfis@savagexi.com>
Date: Sun, 7 Jan 2024 23:08:50 -0800
Subject: [PATCH] Include missing header.

---
 ext/libxml/ruby_xml_reader.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/libxml/ruby_xml_reader.c b/ext/libxml/ruby_xml_reader.c
index 6da099a2..37e35fbd 100644
--- a/ext/libxml/ruby_xml_reader.c
+++ b/ext/libxml/ruby_xml_reader.c
@@ -4,6 +4,8 @@
 #include "ruby_libxml.h"
 #include "ruby_xml_reader.h"
 
+#include <errno.h>
+
 #include <libxml/xmlreader.h>
 #include <libxml/xmlschemas.h>