From 6127d2e45b635dd073973b5aec81acf4d8df30b3 Mon Sep 17 00:00:00 2001
From: Tom Schraitle <tom_schr@web.de>
Date: Wed, 19 Apr 2023 15:01:58 +0200
Subject: [PATCH 1/1] Assembly: Copy xml:lang on <structure>

This is a first patch to copy the missing xml:lang attribute to the
result file.
It's still not yet clear, if this will be fixed upstream and how. Other
attributes like role, os etc. might be also affected.

For details, see the docbook mailinglist:
https://lists.oasis-open.org/archives/docbook/202304/msg00012.html
---
 assembly/assemble.xsl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -ur docbook-xsl-1.79.2.bak/assembly/assemble.xsl docbook-xsl-1.79.2/assembly/assemble.xsl
--- docbook-xsl-1.79.2.bak/assembly/assemble.xsl	2016-12-09 23:39:10.000000000 +0100
+++ docbook-xsl-1.79.2/assembly/assemble.xsl	2023-04-19 14:54:16.562030329 +0200
@@ -123,7 +123,7 @@
     <xsl:attribute name="version">
       <xsl:value-of select="$docbook.version"/>
     </xsl:attribute>
-    <xsl:copy-of select="@xml:id"/>
+    <xsl:copy-of select="@xml:id|@xml:lang"/>
 
     <!-- use the merge element if present -->
     <xsl:call-template name="merge.info">