--- /dev/null	2013-07-25 10:36:14.000000000 +0000
+++ docbook-xml-4.1.2/catalog.xml	2013-07-25 10:35:44.109659700 +0000
@@ -0,0 +1,66 @@
+<?xml version='1.0'?>
+<!DOCTYPE catalog PUBLIC "-//OASIS//DTD Entity Resolution XML Catalog V1.0//EN"
+    "http://www.oasis-open.org/committees/entity/release/1.0/catalog.dtd">
+
+<catalog xmlns="urn:oasis:names:tc:entity:xmlns:xml:catalog">
+
+<!-- ...................................................................... -->
+<!-- XML Catalog data for DocBook XML V4.1.2............................... -->
+<!-- File catalog.xml ..................................................... -->
+
+<!-- Please direct all questions, bug reports, or suggestions for
+     changes to the docbook@lists.oasis-open.org mailing list. For more
+     information, see http://www.oasis-open.org/.
+  -->
+
+<!-- This is the catalog data file for DocBook V4.1.2. It is provided as
+     a convenience in building your own catalog files. You need not use
+     the filenames listed here, and need not use the filename method of
+     identifying storage objects at all.  See the documentation for
+     detailed information on the files associated with the DocBook DTD.
+     See XML Catalogs at http://www.oasis-open.org/committees/entity/ for
+     detailed information on supplying and using catalog data.
+  -->
+
+<!-- ...................................................................... -->
+<!-- DocBook driver file .................................................. -->
+
+<public publicId="-//OASIS//DTD DocBook XML V4.1.2//EN"
+        uri="docbookx.dtd"/>
+
+<system systemId="http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"
+        uri="docbookx.dtd"/>
+
+<system systemId="http://docbook.org/xml/4.1.2/docbookx.dtd"
+        uri="docbookx.dtd"/>
+
+<!-- ...................................................................... -->
+<!-- DocBook modules ...................................................... -->
+
+<public publicId="-//OASIS//DTD DocBook CALS Table Model V4.1.2//EN"
+        uri="calstblx.dtd"/>
+
+  <!-- already included in docbook 4.2
+<public publicId="-//OASIS//DTD XML Exchange Table Model 19990315//EN"
+        uri="soextblx.dtd"/> -->
+
+<public publicId="-//OASIS//ELEMENTS DocBook XML Information Pool V4.1.2//EN"
+        uri="dbpoolx.mod"/>
+
+<public publicId="-//OASIS//ELEMENTS DocBook Document Hierarchy V4.1.2//EN"
+        uri="dbhierx.mod"/>
+
+<public publicId="-//OASIS//ENTITIES DocBook Additional General Entities V4.1.2//EN"
+        uri="dbgenent.mod"/>
+
+<public publicId="-//OASIS//ENTITIES DocBook Notations V4.1.2//EN"
+        uri="dbnotnx.mod"/>
+
+<public publicId="-//OASIS//ENTITIES DocBook Character Entities V4.1.2//EN"
+        uri="dbcentx.mod"/>
+
+
+<!-- End of catalog data for DocBook XML V4.1.2 ............................. -->
+<!-- ...................................................................... -->
+
+</catalog>
