Support startref on indexterm

diff --git a/docbook/relaxng/tools/doc2dtd.xsl b/docbook/relaxng/tools/doc2dtd.xsl
index d0237ee9a14fa2b13bf04d776987a0cdfea949bd..1cbb60b8026683877c027766284af96c3a6aa753 100644 (file)
--- a/docbook/relaxng/tools/doc2dtd.xsl
+++ b/docbook/relaxng/tools/doc2dtd.xsl
@@ -374,6 +374,12 @@
 <xsl:template match="rng:attribute" mode="attributes">
   <xsl:param name="override" select="0"/>
 
+  <xsl:if test="ancestor::rng:define[1]/@name = 'db.indexterm.singular'
+               and @name = 'zone'">
+    <!-- hack; force the startref attribute to be there... -->
+    <dtd:attribute name="startref" occurs="optional" type="IDREF"/>
+  </xsl:if>
+
   <xsl:choose>
     <xsl:when test="$override = 0">
       <xsl:choose>