Re: DocBook 4.2 detecting at configure time

"Oleg Golovanov" <o.golovanov@equant.ru> writes:
> I have changed configure command. Currently I issue command:
> SGML_CATALOG_FILES=/usr/local/share/xml/docbook/4.2/docbook.cat

Are you sure that's the place to look?  On my machine the appropriate
stuff is under .../share/sgml/, not /xml/.

> configure:22300: checking for DocBook V4.2
> onsgmls:conftest.sgml:1:54:W: cannot generate system identifier for
> public text
> "-//OASIS//DTD DocBook V4.2//EN"

The catalog file you point to needs to have a publicId item for that
name, for instance on my machine I find

  <public publicId="-//OASIS//DTD DocBook XML V4.2//EN" uri="xml-dtd-4.2-1.0-30/docbookx.dtd"/>

in /usr/share/sgml/docbook/xmlcatalog

            regards, tom lane