Hi Zhuohua,

Thanks for the bug report, and sorry it’s taken so long for someone to look at it (the maintainers have had a busy year).

I’ve just had a look, and indeed see \\def\\pgfsysdriver{pgfsys-tex4ht.def} hardcoded at ob-latex.el:185. However, this is inside a (string= "html" extension) check, so tex4ht seem like the right driver to use here. There is also a TODO just before it though,

	  ;; TODO: this is a very different way of generating the
	  ;; frame latex document than in the pdf case.  Ideally, both
	  ;; would be unified.  This would prevent bugs creeping in
	  ;; such as the one fixed on Aug 16 2014 whereby :headers was
	  ;; not included in the SVG/HTML case.

I think a patch which implements this could also allow you to change this hardcoded string, and would be most welcome if someone were to give it a shot.

All the best,
Timothy

From: Zhuohua Li
Subject: Bug: `org-babel-latex-preamble' should not hardcode `pgfsysdriver' [9.4.4 (release_9.4.4 @ /home/n/.emacs.d/elpa/28.0/develop/org-mode/lisp/)]
To: emacs-orgmode@gnu.org
Date: Mon, 06 Sep 2021 15:02:58 +0800


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Hi, I tried to export LaTex code blocks into SVG images using the development version org-mode (d70f280678) but failed with "PDF produced with errors".

I found that in file `lisp/ob-latex.el', variable `org-babel-latex-preamble' hardcodes the following:

\\def\\pgfsysdriver{pgfsys-tex4ht.def}

This only compiles if you use `htlatex', however, the default LaTex compiler is `pdflatex`.

I deleted this line and everything works fine. I think this should be a bug so I report it here. Hope it can be fixed.

Thank you very much!

Zhuohua


Emacs  : GNU Emacs 28.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.29, cairo version 1.16.0)
 of 2021-08-28
Package: Org mode version 9.4.4 (release_9.4.4 @ /home/n/.emacs.d/elpa/28.0/develop/org-mode/lisp/)