From 0c22b93c9500bf0b6e2afdd04d4edb99689bcf6b Mon Sep 17 00:00:00 2001
From: Michael Schroeder <mls@suse.de>
Date: Wed, 4 Sep 2024 14:35:59 +0200
Subject: [PATCH] SimpleXML: implement <element attr /> short form in unparse

---
 Build/SimpleXML.pm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Build/SimpleXML.pm b/Build/SimpleXML.pm
index f62965b46..45b3131c6 100644
--- a/Build/SimpleXML.pm
+++ b/Build/SimpleXML.pm
@@ -165,6 +165,10 @@ sub unparse {
 	$r .= " ".unparse_escape($sa);
 	$r .= '="'.unparse_escape($se->{$sa}).'"' if defined $se->{$sa};
       }
+      if (!@se && !defined($se->{'_content'})) {
+	$r .= " />$nl";
+	next;
+      }
       $r .= ">";
       $r .= unparse_escape($se->{'_content'}) if defined $se->{'_content'};
       $r .= $nl . unparse($se, %opts, 'indent' => "  $indent") . "$indent" if @se;