PassiveTeX problems (Was: FO, FOP and PDF)

[Steinar Bang <sb at dod dot no>]

>>>>> Steinar Bang <sb at dod dot no>:

[snip!]
> I've heard rumors that PassiveTeX has limited support for keeps as
> well (I haven't checked this for ages).
[snip!]
> Hm... newsflash... seems like the situation with PassiveTeX have
> improved since I last looked at it:
> 	http://sources.redhat.com/ml/docbook-apps/2002-q2/msg00282.html

> Hm.. the home page says on keep-with-next "Done in theory, not working
> 100%".
> 	http://www.tei-c.org.uk/Software/passivetex/

I decided to try out the PassiveTeX distributed with RedHat 8.0, and
immediately ran into two problems:
 1. PassiveTeX doesn't like filenames with underscores
 2. PassiveTeX, as distributed with RedHat 8, has problems with the
    size, or line lengths of XSL:FO files created by the DocBook XSL
    style sheets

The first problem can be fixed by renaming the files.  But I'd rather
not do that, since that would lose file history in CVS.  Is there a
way to fix this in TeX?

I have no idea where to start fixing the second problem.

Here are the command lines I used to invoke PassiveTeX, and the error
messages they resulted in.  The XSL:FO was created from a DocBook
4.1.2 document, using DocBook XSL 1.60.1.

$ pdflatex "&pdfxmltex" "install_program.fo"
This is pdfTeX, Version 3.14159-14h-released-20010417 (Web2C 7.3.3.1)
! I can't find file `install'.
<to be read again>
                   \global
<*> &pdfxmltex install_
                       program.fo
Please type another input file name:
[3]+  Stopped                 pdflatex "&pdfxmltex" "install_program.fo"
$ kill %3

[3]+  Stopped                 pdflatex "&pdfxmltex" "install_program.fo"
$
[3]+  Terminated              pdflatex "&pdfxmltex" "install_program.fo"
$ mv install_program.fo installprogram.fo
$ pdflatex "&pdfxmltex" "installprogram.fo"
This is pdfTeX, Version 3.14159-14h-released-20010417 (Web2C 7.3.3.1)
(./installprogram.fo! Unable to read an entire line---bufsize=50000.
Please increase buf_size in texmf.cnf.
$ locate texmf.cnf
/usr/share/texmf/web2c/texmf.cnf