tex-buf is no longer a part of auctex

[wang1zhen]

see the changelog of auctex.

[titanofold]

It was sufficient to edit the (require 'tex-buf) to read (require 'tex)

[wang1zhen]

It was sufficient to edit the (require 'tex-buf) to read (require 'tex)

No, I don't think that's true. As latex.el is already required, tex.el should be required by latex.el. And for backward compatibility, I think we shall keep requiring tex-buf.el as long as it exists.

[fab6]

Hi,
do you have an advice, how to tell straight that it should use an older commit of auctex until this is working again?
Thanks in advance!

[wang1zhen]

Hi, do you have an advice, how to tell straight that it should use an older commit of auctex until this is working again? Thanks in advance!

try https://github.com/raxod502/straight.el#how-do-i-pin-package-versions-or-use-only-tagged-releases

[fab6]

ok, thank you

[felker]

AUCTeX 13.1 was released on 2022-02-20. Couldn't find the change you mentioned in either of these changelogs @wang1zhen:

• https://github.com/emacsmirror/auctex/blob/master/ChangeLog.1
• https://www.gnu.org/software/auctex/manual/auctex/Changes.html

Is it sufficient to use 13.0, or do you recommend an earlier version?

[titanofold]

That mirror may be out of date. https://git.savannah.gnu.org/gitweb/?p=emacs/elpa.git;a=commit;h=4b1c7015ae77b88832af35510232e1a1b716da3a

It is removed with the release of 13.1.2.

[stefan2904]

I now also ran into this issue.

In the AUCTeX.info (for version 13.1.2 from 2022-04-08), it says:

   * Now 'tex-buf.el' is merged into 'tex.el' and no longer exists.  If
     your personal code has '(require 'tex-buf)', one of the following
     prescriptions would serve.
       1. Remove '(require 'tex-buf)'.
       2. Replace it with '(require 'tex)'.
       3. Replace it with '(require 'latex)'.

//update: ach, I just noticed PR #40 :-)

[basil-conto]

FWIW, here's how I'm locally working around the issue at runtime until upstream is patched:

(defun my-auctex-latexmk-advice (req feature &rest args)
  "Call REQ with FEATURE and ARGS, unless FEATURE is `tex-buf'."
  (unless (eq feature 'tex-buf)
    (apply req feature args)))

(with-eval-after-load 'latex
  (unwind-protect
      (progn (advice-add 'require :around #'my-auctex-latexmk-advice)
             (auctex-latexmk-setup))
    (advice-remove 'require #'my-auctex-latexmk-advice)))

[stefan2904]

The change from PR #40 did the trick for me (applied to my copy of auctex-latexmk.el): 13c26e1

- (require 'tex-buf)
(require 'latex)
+ (require 'tex-buf nil t)

(This tries to load tex-buf but since require's noerror parameter is true, it does not result in an error in case it is not found. This makes the patch backwards-compatible.)

[berhoel]

The change from PR #40 did the trick for me (applied to my copy of auctex-latexmk.el): 13c26e1

- (require 'tex-buf)
(require 'latex)
+ (require 'tex-buf nil t)

(This tries to load tex-buf but since require's noerror parameter is true, it does not result in an error in case it is not found. This makes the patch backwards-compatible.)

This solution is problematic in my setting, where my OS package installer insists on installing auctex 12.3, but I insist on upgrading auctex via MELPA.

tex-buf is still found and loaded even if I use auctex 13.1.3.

for latex-extra I proposed:

- (require 'tex-buf)
  (require 'latex)
+ (unless (string-prefix-p "13" AUCTeX-version)
+   (require 'tex-buf))

[wang1zhen]

The change from PR #40 did the trick for me (applied to my copy of auctex-latexmk.el): 13c26e1

- (require 'tex-buf)
(require 'latex)
+ (require 'tex-buf nil t)

(This tries to load tex-buf but since require's noerror parameter is true, it does not result in an error in case it is not found. This makes the patch backwards-compatible.)

This solution is problematic in my setting, where my OS package installer insists on installing auctex 12.3, but I insist on upgrading auctex via MELPA.

tex-buf is still found and loaded even if I use auctex 13.1.3.

for latex-extra I proposed:

- (require 'tex-buf)
  (require 'latex)
+ (unless (string-prefix-p "13" AUCTeX-version)
+   (require 'tex-buf))

I guess you might need to remove the old version of auctex files manually

[berhoel]

I guess you might need to remove the old version of auctex files manually

The old auctex was installed by my OS package manager. I can remove it, but there is some dependency that gets it reinstalled with the next update.

[felker]

@basil-conto thanks for sharing your runtime fix. Do you put those lines before the require/use-package lines?

The Error still appears in *Messages* for me with:

(defun my-auctex-latexmk-advice (req feature &rest args)
  "Call REQ with FEATURE and ARGS, unless FEATURE is `tex-buf'."
  (unless (eq feature 'tex-buf)
    (apply req feature args)))

(with-eval-after-load 'latex
  (unwind-protect
      (progn (advice-add 'require :around #'my-auctex-latexmk-advice)
             (auctex-latexmk-setup))
    (advice-remove 'require #'my-auctex-latexmk-advice)))

(use-package auctex-latexmk
  :ensure t
  :config
  (auctex-latexmk-setup)
  )

[basil-conto]

@felker

The Error still appears in *Messages* for me with:

That may be because you're calling auctex-latexmk-setup twice, once with the surrounding advice in place, and once without.

Or it may be because of the :ensure keyword, since the function advice I posted does not work around the tex-buf error during package installation.

Considering you see the error in the *Messages* buffer, I'm guessing it's the former.

Do you put those lines before the require/use-package lines?

The lines I wrote are standalone, i.e. independent of any use-package stanzas you may have. Here's how you could write the same advice more closely coupled with use-package, but disclaimer: I don't use use-package so this is only lightly tested.

(use-package auctex-latexmk
  :ensure t
  :defer t
  :after latex
  :functions auctex-latexmk-setup
  :preface
  (defun my-auctex-latexmk-advice (req feature &rest args)
    "Call REQ with FEATURE and ARGS, unless FEATURE is `tex-buf'."
    (unless (eq feature 'tex-buf)
      (apply req feature args)))
  :init
  (unwind-protect
      (progn (advice-add 'require :around #'my-auctex-latexmk-advice)
             (auctex-latexmk-setup))
    (advice-remove 'require #'my-auctex-latexmk-advice)))

Note that, as I mentioned above, this will not fix the tex-buf error the first time auctex-latexmk is installed thanks to the :ensure keyword.

[felker]

@basil-conto thanks! for someone who doesnt utilize use-package, you are more fluent with it than I am 😄 This worked and didnt throw the error, with or without :ensure t.

[jsilve24]

For some reason this doesn't work for me and I get the following error at startup

Error (use-package): auctex-latexmk/:init: Symbol’s value as variable is void: TeX-expand-list Disable showing Disable logging

[basil-conto]

For some reason this doesn't work for me and I get the following error at startup

That shouldn't happen, as auctex-latexmk.el loads latex.el, which loads tex.el, which defines TeX-expand-list.

Can you get a backtrace for the error? E.g. via M-x toggle-debug-on-error, by setting (setq debug-on-error t), or by starting Emacs with the --debug-init option?

Do you have any other tex, latex, auctex, or auctex-latexmk configurations? Do you have a copy of auctex-latexmk-setup lying somewhere? Have you tried reinstalling your packages, or commenting out parts of your user-init-file to see if any other parts of it may be giving rise to this issue? What is your M-x emacs-version?