Added docbookx to the catalog

diff --git a/docbook/sgml/catalog.xml b/docbook/sgml/catalog.xml
index 8082b67ee74408e857e1f044db11db60edf488c1..d8403a80e698ecd4e749ce0f7ca6f1df3b3bfb3b 100644 (file)
--- a/docbook/sgml/catalog.xml
+++ b/docbook/sgml/catalog.xml
@@ -28,6 +28,18 @@
 <public publicId="-//OASIS//DTD DocBook XML V4.4b1//EN"
         uri="docbookx.dtd"/>
 
+<system systemId="http://www.oasis-open.org/docbook/sgml/4.4b1/docbook.dtd"
+       uri="docbook.dtd"/>
+
+<system systemId="http://docbook.org/sgml/4.4b1/docbook.dtd"
+       uri="docbook.dtd"/>
+
+<system systemId="http://www.oasis-open.org/docbook/xml/4.4b1/docbookx.dtd"
+       uri="docbookx.dtd"/>
+
+<system systemId="http://docbook.org/xml/4.4b1/docbookx.dtd"
+       uri="docbookx.dtd"/>
+
 <!-- ...................................................................... -->
 <!-- DocBook modules ...................................................... -->