function.xml vs boostbook.dtd

Hi,

It seems that the attribute xmlns:xi="http://www.w3.org/2001/XInclude"
on the "library" element is not supported by boostbook.dtd.

All the files that use <xi:include href="..."> generate errors when
processed with xsltproc ("Using libxml 20632, libxslt 10123 and
libexslt 813").

The MSXML parser signals the same error (function.xml, line 6).

I would like to ask someone who is more experienced with BoostBook to
take 5 minutes of his/her time and test the instructions posted here
http://www.boost.org/doc/libs/1_35_0/doc/html/boostbook/getting/started.html
on Windows (only up to building function.xml, even without downloading
local copies of the DTD/XSD files.

They don't seem to work... unless skipping validation against the
boostbook.dtd file (e.g. by erasing the file).

Thank you,

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Best regards,
 Adder