Using IO Taglib under Debian unstable

[David Goodenough <david.goodenough@btconnect.com>]

I am trying to use the IO Taglib from Apache under Tomcat4 on a Debian 
unstable system, using the Sun 4.1 SDK.

I have successfully used several other taglibs, the JSTL one, and the String
taglib.  

When I try to load the IO tld, it complains:-

org.apache.jasper.JasperException: /test.jsp(0,0) XML parsing error on
     file /WEB-INF/tld/taglibs-io.tld: (line 5, col 50): Attribute
     "xmlns:xalan" must be declared for element type "taglib".

Anyone got any ideas?

David