porting-howto.xml: Refer to http://www.oasis-open.org for docbookx.dtd.

2002-03-04  Craig Rodrigues  <rodrigc@gcc.gnu.org>

        * docs/html/17_intro/porting-howto.xml: Refer to
        http://www.oasis-open.org for docbookx.dtd.
        * docs/html/17_intro/porting-howto.html: Regenerated.

From-SVN: r50291

libstdc++-v3/ChangeLog

+2002-03-04  Craig Rodrigues  <rodrigc@gcc.gnu.org>
+
+	* docs/html/17_intro/porting-howto.xml: Refer to 
+	http://www.oasis-open.org for docbookx.dtd.
+	* docs/html/17_intro/porting-howto.html: Regenerated.
+
 2002-03-03  Phil Edwards  <pme@gcc.gnu.org>
 
 	PR libstdc++/3955

libstdc++-v3/docs/html/17_intro/porting-howto.xml

 <?xml version="1.0" encoding="ISO-8859-1"?>
 
 <!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.1//EN"
-                         "dtd/docbook-4/docbookx.dtd">
+                         "http://www.oasis-open.org/docbook/xml/4.0/docbookx.dtd">
 
 <?xml-stylesheet type="text/xsl" href="docbook-xslt/docbook/html/docbook.xsl"?>