[XeTeX] XeTeX 0.994 error message

[Robert Spence]

Hi Bruno,

On 07 Jun 2006, at 00:38 , Bruno Voisin wrote:

> Le 6 juin 06 à 23:58, Robert Spence a écrit :
>
>> (/usr/local/teTeX/share/texmf.local/tex/xelatex/hyperref.cfg)
>> Implicit mode ON; LaTeX internals redefined
>> )
>> *hyperref using default driver hdvipdfm*
>> (/usr/local/teTeX/share/texmf.tetex/tex/latex/hyperref/hdvipdfm.def)
>> (./marina.aux)
>> ! Undefined control sequence.
>> \Gm at checkdrivers ...fined \else \ifnum \pdfoutput
>>                                                    =\@ne
>> \Gm at setdriver {pdfte...
>> l.1333 \begin{document}
>
> It looks like one of the packages you've loaded thinks you are
> running pdfTeX instead of XeTeX. Maybe it acts like the geometry
> package, detecting pdfTeX based on whether \pdfpagewidth or
> \pdfpageheight is defined. Could you post your complete preamble, to
> let us know which packages are called?

Having just seen all the other posts that have come in since midnight  
(aren't new XeTeX releases exciting! ;-), I'm now pretty sure that it  
is, in fact, the geometry package that's causing the error messages.   
I didn't dare post my complete preamble, because it's over a thousand  
lines long (!).  But here's an attempt at a minimal example:

----------
%!TEX TS-program = xelatex
%!TEX encoding = UTF-8 Unicode
\documentclass{scrartcl}
%\usepackage{geometry}
\usepackage{xunicode,fontspec}
\defaultfontfeatures{Mapping=tex-text}
\setromanfont{Gentium}
\begin{document}
This is a test.
\end{document}
----------

Uncommenting the line

%\usepackage{geometry}

makes the error messages appear.  So it looks like it's the same  
problem that other list members are having, and it looks like it  
might be related to:

< lines 562 thru 583 of geometry.sty [2002/07/08 v3.2 Page Geometry] >

\def\Gm at checkdrivers{%
   \ifx\pdfpagewidth\@undefined\else
     \ifnum\pdfoutput=\@ne
       \Gm at setdriver{pdftex}%
     \fi
   \fi
   \ifx\VTeXversion\@undefined\else
     \ifnum\OpMode=\@ne
       \Gm at setdriver{vtex}%
     \else
       \ifnum\OpMode=\tw@
         \Gm at setdriver{vtex}%
       \fi
     \fi
   \fi
   \ifx\Gm at driver\Gm at dvips
     \Gm at specialtrue
   \else
     \ifx\Gm at driver\Gm at dvipdfm
        \Gm at specialtrue
     \fi
   \fi}%

So I guess the possible workarounds are:
1) Try one of the alternatives to geometry.sty
2) Get used to pressing the RETURN key while running XeTeX
3) Wait for XeTeX 0.995 ( = the confidence interval corresponding to  
standard deviation range

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perhaps?)

4) Remember that it's already Wednesday morning "Down Under", and  
that Will will have whipped up a quick, extelligent fix by now ---  
which .... < check mail again > .... he has !  (Good on you, mate!):

    \ifdefined\XeTeXversion
      \newcount\pdfoutput
      \pdfoutput0\relax
    \fi
    \usepackage[dvipdfm]{geometry}

It works for me, and (as Will says) the dvipdfm option doesn't seem  
to be necessary.


-- Robert Spence
Applied Linguistics
Saarland University
Germany
----------------------
"La noosphère (...) : il s'agit d'une sorte de « conscience  
collective de l'humanité » qui regroupe toutes les activités  
cérébrales et mécaniques de mémorisation et de traitement de  
l'information.

Les vulgarisateurs scientifiques australiens Jack Cohen et Ian  
Stewart lui ont donné le nom plus médiatique d'extelligence."  --  
http://fr.wikipedia.org/wiki/Noosphère

----------------------