Re: [xml] catalog problem with xmlto

[Uwe Fechner <ufechner sk28 de>]

Hello,

thanks for your explanations, but your suggestion did not help.

I did ask in the gentoo forum, none of the suggestions did help, and 
there is a bug in the
gentoo bug database for this problem (others have it as well, but not 
ALL users of xmlto,
so further investigation is needed).

See:
http://bugs.gentoo.org/show_bug.cgi?id=99851

The files, you described exist on my system and look ok.
I reemerged the packages you mentioned, but it did not help.

So I ask again:
How can debug the catalog usage of libxslt ?

Result of xsltproc -V:
xsltproc -V
Using libxml 20619, libxslt 10114 and libexslt 812
xsltproc was compiled against libxml 20619, libxslt 10114 and libexslt 812
libxslt 10114 was compiled against libxml 20619
libexslt 812 was compiled against libxml 20619

I think, something like doing a very simple xslt transformation that 
references
docbook.xsl would be a good test.

I think, that a change in the docbook api of libxslt (or libxml2?) that was
mentioned on this list shortly might be the reason of this problem.

Regards:

Uwe Fechner

William M. Brack schrieb:

> Uwe Fechner said:
>  
>
> > Hello,
> >
> > I am using gentoo linux.
> >
> > I have problems to use catalogs.
> > If I try to install (called "emerge" in gentoo linux) the package xmlto
> > I get the error message:
> >
> > warning: failed to load external entity
> > "http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl";
> > compilation error: file
> > /var/tmp/portage/xmlto-0.0.18/temp/xmlto-xsl.VYRlh4 line 4 element import
> > xsl:import : unable to load
> > http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
> > warning: failed to load external entity
> > "http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl";
> > compilation error: file
> > /var/tmp/portage/xmlto-0.0.18/temp/xmlto-xsl.TRDJdu line 4 element import
> > xsl:import : unable to load
> > http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
> >
> > Q: I'm trying to build xmlto on my Debian box, but it doesn't work.
> >
> > A: If you get `Attempt to load network entity' errors when building
> >   xmlto, your system does not have the required support for XML
> >   Catalogs
> >   (http://www.oasis-open.org/committees/entity/spec-2001-08-06.html).
> >   In particular, Debian has no support for these.  Try the Fedora
> >   Project <http://fedora.redhat.com>.
> > make[1]: *** [man/man1/xmlto.1] Error 1
> > make[1]: Leaving directory `/var/tmp/portage/xmlto-0.0.18/work/xmlto-0.0.18'
> > make: *** [all] Error 2
> >
> > I don't use debian, I have the file docbook.xsl installed locally, the url:
> > http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl
> > can be resolved via internet (using wget), still I get this error message.
> >
> > The gentoo package maintainer doesn't understand the reason of this problem.
> >
> > How can I debug, if xml catalogs for xsl transformations work correctly
> > on my
> > system?
> >
> > (I am using libxml2 2.6.19)
> >
> > Any help appreciated.
> >
> > Uwe Fechner
> >    
>
> I, too, am using gentoo linux, and I have no problem "emerging" xmlto.
>
> I believe that your problem is most likely a "gentoo" problem, and not a
> libxml2 / libxslt problem.  According to the error messages which you posted,
> the "emerge" is unable to find a required xsl stylesheet.  However, if things
> are working properly (as they are on my system, but apparently not on your
> system), when the stylesheet is required, the software (probably xsltproc)
> will try to use the "catalog" to locate it.  On my system, in the directory
> /etc/xml, there are two files (named 'catalog' and 'docbook').  The file
> 'docbook' has the information necessary to "map" the request to the actual
> file, which is located in
> /usr/share/sgml/docbook/xsl-stylesheets-1.68.1/manpages/docbook.xsl (which
> comes from app-text/docbook-xsl-stylesheets ).
>
> Somewhat "off-topic" for this list, I suggest you check / re-emerge
>   app-text/docbook-xsl-stylesheets
>   app-text/build-docbook-catalog
>   app-text/docbook-sgml
> and if that fails to fix the problem, try searching in forums.gentoo.org.
>
> HTH
>
> Bill
>
>
>