New tex-bibtex-file in tex-mode.el to take into account TeX-master

[Francois Fleuret]

Dear Emacs developers,

I slightly modified tex-bibtex-file so that it takes into account the
variable TeX-master. I guess it was a bug not to do so.

Here it is:

---------------------------- snip snip -------------------------------
(defun tex-bibtex-file ()
  "Run BibTeX on the current buffer's file."
  (interactive)
  (if (tex-shell-running)
      (tex-kill-job)
    (tex-start-shell))
  (let (shell-dirtrack-verbose
        (tex-out-file
         (tex-append
          (or (and (boundp 'TeX-master)
                   (file-name-nondirectory TeX-master))
              (file-name-nondirectory (buffer-file-name))) ""))
        (file-dir (or (and (boundp 'TeX-master)
                           (file-name-directory TeX-master))
                      (file-name-directory (buffer-file-name)))))
    (tex-send-command tex-shell-cd-command file-dir)
    (tex-send-command tex-bibtex-command tex-out-file))
  (tex-display-shell))
---------------------------- snip snip -------------------------------

Best,

-- 
Francois Fleuret                            http://www.idiap.ch/~fleuret