Index: DOCS/xml/configure
===================================================================
--- DOCS/xml/configure	(revision 21813)
+++ DOCS/xml/configure	(working copy)
@@ -140,10 +140,11 @@
 
 if test -z "$_dtd"
 then
-  _dtd=/usr/share/sgml/docbook/dtd/xml/4.1.2/docbookx.dtd
+  _dtd='http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd'
   echo "Not found. Using default ($_dtd)."
 else
   echo "Found docbookx.dtd at $_dtd"
+  _dtd="file://$_dtd"
 fi
 
 for lang in `grep 'SUBDIRS =' Makefile|cut -d= -f2`; do