[regression] Latest version of acmart class results in tikzexternal reporting all figures as having undefined references

[JasonGross]

Consider the file

\documentclass{acmart}
\usepackage{tikz}
\usepackage{pgfplots}
\usepgfplotslibrary{external}
\tikzexternalize
\begin{document}
\begin{tikzpicture}
    \begin{axis}
      \addplot [color=black,solid,line width=1.0pt,domain=0:1,samples=11]{x+x^2};
    \end{axis}
\end{tikzpicture}
\end{document}

Running pdflatex -shell-escape on this file results in a log that includes

===== 'mode=convert with system call': Invoking 'pdflatex -shell-escape -halt-o
n-error -interaction=batchmode -jobname "test2-figure0" "\def\tikzexternalrealj
ob{test2}\input{test2}"' ========
This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdflatex)
 \write18 enabled.
entering extended mode
LaTeX Warning: External picture `test2-figure0' contains undefined references o
n input line 11.

===== The previous system call resulted in undefined references inside of the o
utput file. Rescheduling it for \end{document}. ========

This is bogus, is a regression over the version in TeXLive 2019, and, when combined with https://github.com/borisveytsman/acmart/issues/436, results in files that compile fine with the TeXLive 2019 version of acmart but fail with the latest version. See https://github.com/JasonGross/test-latex-errors/runs/2797542141?check_suite_focus=true and acmart-test2.log and https://github.com/JasonGross/test-latex-errors/blob/4c02b20205562fe74c25051f882743e100108f42/test.tex

[ozross]

Hi Jason,

I cannot reproduce the issue you describe below. I’m using TeXLive 2021 under MacOS so there could be related differences.

My .log starts as follows:

This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex) \write18 enabled. entering extended mode (./tikz-test.tex LaTeX2e <2020-10-01> patch level 4 L3 programming layer <2021-05-27> (/usr/local/texlive/texmf-local/tex/latex/acm/acmart.cls Document Class: acmart 2021/05/01 v1.78 Typesetting articles for the Associatio n for Computing Machinery

The output PDF looks fine. I doubt that you'll need to see it.

Hope this helps.

Ross

On 11 Jun 2021, at 7:31 am, Jason Gross @.@.>> wrote:

Consider the file

\documentclass{acmart} \usepackage{tikz} \usepackage{pgfplots} \usepgfplotslibrary{external} \tikzexternalize \begin{document} \begin{tikzpicture} \begin{axis} \addplot [color=black,solid,line width=1.0pt,domain=0:1,samples=11]{x+x^2}; \end{axis} \end{tikzpicture} \end{document}

Running pdflatex -shell-escape on this file results in a log that includes

===== 'mode=convert with system call': Invoking 'pdflatex -shell-escape -halt-o n-error -interaction=batchmode -jobname "test2-figure0" "\def\tikzexternalrealj ob{test2}\input{test2}"' ======== This is pdfTeX, Version 3.14159265-2.6-1.40.20 (TeX Live 2019/Debian) (preloaded format=pdflatex) \write18 enabled. entering extended mode LaTeX Warning: External picture `test2-figure0' contains undefined references o n input line 11.

===== The previous system call resulted in undefined references inside of the o utput file. Rescheduling it for \end{document}. ========

This is bogus, is a regression over the version in TeXLive 2019, and, when combined with #436https://github.com/borisveytsman/acmart/issues/436, results in files that compile fine with the TeXLive 2019 version of acmart but fail with the latest version. See https://github.com/JasonGross/test-latex-errors/runs/2797542141?check_suite_focus=true and acmart-test2.loghttps://github.com/borisveytsman/acmart/files/6634539/acmart-test2.log and https://github.com/JasonGross/test-latex-errors/blob/4c02b20205562fe74c25051f882743e100108f42/test.tex

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