bug#20773: 11.88.6; Preview fails on nested \include{} using \documentclass{sigplanconf}

[David Kastrup]

Tassilo Horn <address@hidden> writes:

> l.5 \(
>       a + b = c\)
> ./main.tex:5: Preview: Snippet 2 ended.(409600+54612x2392548).
> <-><->
>       
> address@hidden ...rrhelp {Not a real error.}\errmessage <
>                                                   }
> address@hidden ...lineskip \box address@hidden address@hidden@end 
>                                                   {\let \protect \noexpand 
> \...
>
> \)->\relax \ifmmode \ifinner $
>                               \else address@hidden \fi \else address@hidden 
> \fi 
> l.5 \(a + b = c\)
>                  
> [2] )
> (see the transcript file for additional 
> information){/usr/local/texlive/2014/te
> xmf-dist/fonts/enc/dvips/base/8r.enc}</usr/local/texlive/2014/texmf-dist/fonts/
> type1/public/amsfonts/cm/cmmi9.pfb></usr/local/texlive/2014/texmf-dist/fonts/ty
> pe1/public/amsfonts/cm/cmr9.pfb></usr/local/texlive/2014/texmf-dist/fonts/type1
> /urw/times/utmb8a.pfb>
> Output written on main.pdf (2 pages, 23675 bytes).
> SyncTeX written on main.synctex.gz.
> Transcript written on main.log.
>
> TeX Output exited as expected with code 1 at Tue Jun  9 13:30:57
> Running `Preview-PDF2DSC' with ``pdf2dsc main.pdf 
> main.prv/tmp4678jI2/preview.dsc''
>
> Preview-PDF2DSC finished at Tue Jun  9 13:30:57
> Running `Preview-Ghostscript' with 
> ``/usr/local/texlive/2014/bin/x86_64-linux/rungs 
> -dOutputFile\=\(main.prv/tmp4678jI2/pr1-\%d.png\) -q -dDELAYSAFER -dNOPAUSE 
> -DNOPLATFONTS -dPrinted -dTextAlphaBits\=4 -dGraphicsAlphaBits\=4 
> -sDEVICE\=png16m -r96.0757x96.0504''
> Ghostscript filter: No bounding box

"Ghostscript filter" is an error message from the Emacs component of
preview-latex, probably coming from not being able to recognize the
error messages.  It would appear that the document classes here mess
with the error display from LaTeX, possibly by changing the
\errorcontextlines setting but maybe through other means.

It might be worth trying to put

\newcount\errorcontextlines

(making the original \errorcontextlines inaccessible) before
\documentclass in order to see whether this makes a difference.

-- 
David Kastrup