bug#45985: (void-variable file) after upgrade to AUCTeX 13.0.3

[Richard Stanton]

I just upgraded to AUCTeX 13.0.3 on my Mac running MacOS Catalina, and now when 
I try to view a PDF file using the function skim-make-url defined as follows:

(defun skim-make-url () (concat
                         (TeX-current-line)
                         " \""
                         (expand-file-name (funcall file (TeX-output-extension) 
t)
                                           (file-name-directory 
(TeX-master-file)))
                         "\" \""
                         (buffer-file-name)
                         "\""))

I get an error message about (void-variable file). I've been happily using the 
same AUCTeX set-up for many years now, so I assume something has changed in 
AUCTeX. Any suggestions would be welcome.

Thanks!

Richard Stanton

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

Debugger entered--Lisp error: (void-variable file)
  (funcall file (TeX-output-extension) t)
  (expand-file-name (funcall file (TeX-output-extension) t) 
(file-name-directory (TeX-master-file)))
  (concat (TeX-current-line) " \"" (expand-file-name (funcall file 
(TeX-output-extension) t) (file-name-directory (TeX-master-file))) "\" \"" 
(buffer-file-name) "\"")
  skim-make-url()
  apply(skim-make-url nil)
  TeX-command-expand("%V")
  TeX-command("View" TeX-master-file nil)
  TeX-command-master(nil)
  funcall-interactively(TeX-command-master nil)
  call-interactively(TeX-command-master nil nil)
  command-execute(TeX-command-master
)

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

Emacs  : GNU Emacs 27.1 (build 1, x86_64-apple-darwin19.6.0, Carbon Version 162 
AppKit 1894.6)
 of 2020-11-16
Package: 13.0.3

current state:
==============
(setq
 AUCTeX-date "2021-01-08"
 window-system 'mac
 LaTeX-version "2e"
 TeX-style-path '("/usr/local/var/auctex" 
"/Users/stanton/.emacs.d/straight/build/auctex/style"
                  "/Users/stanton/.emacs.d/auctex/auto" 
"/Users/stanton/.emacs.d/auctex/style" "auto" "style")
 TeX-auto-save t
 TeX-parse-self t
 TeX-master t
 TeX-command-list '(("TeX" "%(PDF)%(tex) %(file-line-error) %`%(extraopts) 
%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 %(extraopts) %t" TeX-run-compile nil 
(texinfo-mode) :help
                     "Run Makeinfo with Info output")
                    ("Makeinfo HTML" "makeinfo %(extraopts) --html %t" 
TeX-run-compile nil (texinfo-mode) :help
                     "Run Makeinfo with HTML output")
                    ("AmSTeX" "amstex %(PDFout) %`%(extraopts) %S%(mode)%' %t" 
TeX-run-TeX nil (ams-tex-mode) :help "Run AMSTeX")
                    ("ConTeXt" "%(cntxcom) --once --texutil %(extraopts) 
%(execopts)%t" TeX-run-TeX nil (context-mode) :help
                     "Run ConTeXt once")
                    ("ConTeXt Full" "%(cntxcom) %(extraopts) %(execopts)%t" 
TeX-run-TeX nil (context-mode) :help
                     "Run ConTeXt until completion")
                    ("BibTeX" "bibtex %s" TeX-run-BibTeX nil
                     (plain-tex-mode latex-mode doctex-mode ams-tex-mode 
texinfo-mode context-mode) :help "Run BibTeX")
                    ("Biber" "biber %s" TeX-run-Biber nil (plain-tex-mode 
latex-mode doctex-mode ams-tex-mode texinfo-mode) :help
                     "Run Biber")
                    ("View" "%V" TeX-run-discard-or-function 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-dvips t
                     (plain-tex-mode latex-mode doctex-mode ams-tex-mode 
texinfo-mode) :help "Generate PostScript file")
                    ("Dvips" "%(o?)dvips %d -o %f " TeX-run-dvips nil
                     (plain-tex-mode latex-mode doctex-mode ams-tex-mode 
texinfo-mode) :help "Convert DVI file to PostScript")
                    ("Dvipdfmx" "dvipdfmx %d" TeX-run-dvipdfmx nil
                     (plain-tex-mode latex-mode doctex-mode ams-tex-mode 
texinfo-mode) :help
                     "Convert DVI file to PDF with dvipdfmx")
                    ("Ps2pdf" "ps2pdf %f" TeX-run-ps2pdf nil (plain-tex-mode 
latex-mode doctex-mode ams-tex-mode texinfo-mode)
                     :help "Convert PostScript file to PDF")
                    ("Glossaries" "makeglossaries %s" TeX-run-command nil
                     (plain-tex-mode latex-mode doctex-mode ams-tex-mode 
texinfo-mode) :help
                     "Run makeglossaries to create glossary\n     file")
                    ("Index" "makeindex %s" TeX-run-index nil (plain-tex-mode 
latex-mode doctex-mode ams-tex-mode texinfo-mode)
                     :help "Run makeindex to create index file")
                    ("upMendex" "upmendex %s" TeX-run-index t (plain-tex-mode 
latex-mode doctex-mode ams-tex-mode texinfo-mode)
                     :help "Run upmendex to create index file")
                    ("Xindy" "texindy %s" TeX-run-command nil (plain-tex-mode 
latex-mode doctex-mode ams-tex-mode texinfo-mode)
                     :help "Run xindy to create index file")
                    ("Check" "lacheck %s" TeX-run-compile nil (latex-mode) 
:help "Check LaTeX file for correctness")
                    ("ChkTeX" "chktex -v6 %s" TeX-run-compile nil (latex-mode) 
:help "Check LaTeX file for common mistakes")
                    ("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"))
 )