[Bug-AUCTeX] 11.84; TeX-next-error in PDFLaTeX brings up supp-pdf.tex

[jay . p . belanger]

Remember to cover the basics, that is, what you expected to happen and
what in fact did happen.

Be sure to consult the FAQ section in the manual before submitting
a bug report.  If the bug (or problem) is triggered by a specific
(La)TeX file, you should try to produce a minimal sample file
showing the problem and include it in your report.

Your bug report will be posted to the AUCTeX bug reporting list.
------------------------------------------------------------------------

There's nothing new here; this seems to be a bug being discussed on the 
AUCTeX and AUCTeX-devel mailing lists.  But I wanted to add some information,
and I didn't want the bug-AUCTeX mailing list to feel left out.

Running TeXLive 2007 on Gentoo GNU/Linux, the problem appears when 
running pdflatex on a file, but only if graphicx is being loaded.  
(It doesn't matter if graphicx is given the pdftex option or not.)

Here's how to produce the problem:
Start emacs with "emacs -Q"
Load auctex.el
Open a LaTeX file which loads graphicx and contains an error, such as:

 \documentclass{article}
 \usepackage{graphicx}
 \begin{document}
 \[ x $
 \end{document}

Change to PDF mode: C-cC-tC-p
LaTeX it: C-cC-cRET
Go to error: C-c `

The bottom window will contain the correct *TeX help* file, but the top 
window will contain supp-pdf.tex instead of the original LaTeX file.
I don't know if it's relevant, but when graphicx is loaded, supp-pdf.tex 
is loaded after the aux file. 
>From the output buffer:
Without graphicx:

  (/misc/attic/texlive/2007/texmf-dist/tex/latex/base/size10.clo)) (./cc.aux)
  ! Display math should end with $$.
  <to be read again> 
                    
  l.7 \[ x $

With graphicx:

  ...
  (/misc/attic/texlive/2007/texmf/tex/latex/config/graphics.cfg)
  (/misc/attic/texlive/2007/texmf-dist/tex/latex/pdftex-def/pdftex.def)))
  (./cc.aux) (/misc/attic/texlive/2007/texmf-dist/tex/context/base/supp-pdf.tex
  [Loading MPS to PDF converter (version 2006.09.02).]
  )
  ! Display math should end with $$.
  <to be read again> 
                    
  l.7 \[ x $


Emacs  : GNU Emacs 22.0.98.3 (i686-pc-linux-gnu, GTK+ Version 2.10.9)
 of 2007-04-25 on localhost
Package: 11.84

current state:
==============
(setq
 AUCTeX-date "2007-01-12"
 window-system 'x
 LaTeX-version "2e"
 TeX-style-path '("style" "auto" "/home/belanger/.TeX/style"
                  "/home/belanger/.TeX/style" "/misc/attic/Comics/style"
                  "/misc/attic/Comics/style" "/home/belanger/.TeX/auto"
                  "/home/belanger/.TeX/auto" "/misc/attic/Comics/auto"
                  "/misc/attic/Comics/auto"
                  "/home/belanger/.emacs.d/elisp/auctex/auctex/style"
                  "/home/belanger/.emacs.d/elisp/auctex/var/auctex")
 TeX-auto-save nil
 TeX-parse-self nil
 TeX-master t
 TeX-command-list '(("TeX" "%(PDF)%(tex) %`%S%(PDFout)%(mode)%' %t" TeX-run-TeX 
nil
                     (plain-tex-mode ams-tex-mode texinfo-mode) :help "Run 
plain TeX")
                    ("LaTeX" "%`%l%(mode)%' %t" TeX-run-TeX nil
                     (latex-mode doctex-mode) :help "Run LaTeX")
                    ("Makeinfo" "makeinfo %t" TeX-run-compile nil 
(texinfo-mode) :help
                     "Run Makeinfo with Info output")
                    ("Makeinfo HTML" "makeinfo --html %t" TeX-run-compile nil
                     (texinfo-mode) :help "Run Makeinfo with HTML output")
                    ("AmSTeX" "%(PDF)amstex %`%S%(PDFout)%(mode)%' %t" 
TeX-run-TeX nil
                     (ams-tex-mode) :help "Run AMSTeX")
                    ("ConTeXt" "texexec --once --texutil %(execopts)%t" 
TeX-run-TeX
                     nil (context-mode) :help "Run ConTeXt once")
                    ("ConTeXt Full" "texexec %(execopts)%t" TeX-run-TeX nil
                     (context-mode) :help "Run ConTeXt until completion")
                    ("BibTeX" "bibtex %s" TeX-run-BibTeX nil t :help "Run 
BibTeX")
                    ("View" "%V" TeX-run-discard t t :help "Run Viewer")
                    ("Print" "%p" TeX-run-command t t :help "Print the file")
                    ("Queue" "%q" TeX-run-background nil t :help
                     "View the printer queue" :visible TeX-queue-command)
                    ("File" "%(o?)dvips %d -o %f " TeX-run-command t t :help
                     "Generate PostScript file")
                    ("Index" "makeindex %s" TeX-run-command nil t :help
                     "Create index file")
                    ("Check" "lacheck %s" TeX-run-compile nil (latex-mode) :help
                     "Check LaTeX file for correctness")
                    ("Spell" "(TeX-ispell-document \"\")" TeX-run-function nil 
t :help
                     "Spell-check the document")
                    ("Clean" "TeX-clean" TeX-run-function nil t :help
                     "Delete generated intermediate files")
                    ("Clean All" "(TeX-clean t)" TeX-run-function nil t :help
                     "Delete generated intermediate and output files")
                    ("Other" "" TeX-run-command t t :help "Run an arbitrary 
command"))
 )