"sage --docbuild DOC html" is broken #32946
Description
If I do make doc-clean && make doc and then for example sage --docbuild tutorial html, first it successfully builds the html tutorial, but then it fails because it tries to build the PDF documentation. I also don't know where it is building the PDF docs, because local/share/docs/sage/latex does not exist.
% ./sage --docbuild tutorial html
[tutorial ] building [html]: targets for 23 source files that are out of date
[tutorial ] updating environment: [extensions changed ('2')] 23 added, 0 changed, 0 removed
[tutorial ] Merging environment/index files...
[tutorial ] ... done (0 todos, 23 index, 17 citations, 0 modules)
[tutorial ] WARNING: display latex 'V=\\QQ^3': latex exited with error
[tutorial ] [stdout]
[tutorial ] This is pdfTeX, Version 3.141592653-2.6-1.40.23 (TeX Live 2022/dev) (preloaded format=latex)
[tutorial ] restricted \write18 enabled.
[tutorial ] entering extended mode
[tutorial ] (./math.tex
[tutorial ] LaTeX2e <2021-06-01> patch level 1
[tutorial ] L3 programming layer <2021-10-18>
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/base/article.cls
[tutorial ] Document Class: article 2021/02/12 v1.4n Standard LaTeX document class
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/base/size12.clo))
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/base/inputenc.sty)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsmath/amsmath.sty
[tutorial ] For additional information on amsmath, use the `?' option.
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsmath/amstext.sty
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsmath/amsgen.sty))
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsmath/amsbsy.sty)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsmath/amsopn.sty))
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amscls/amsthm.sty)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsfonts/amssymb.sty
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsfonts/amsfonts.sty))
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/anyfontsize/anyfontsize.sty)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/tools/bm.sty)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/l3backend/l3backend-dvips.def)
[tutorial ] No file math.aux.
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsfonts/umsa.fd)
[tutorial ] (/usr/local/texlive/2021/texmf-dist/tex/latex/amsfonts/umsb.fd)
[tutorial ] ! Undefined control sequence.
[tutorial ] l.13 \fontsize{12}{14}\selectfont $V=\QQ
[tutorial ] ^3$
[tutorial ] [1] (./math.aux) )
[tutorial ] (see the transcript file for additional information)
[tutorial ] Output written on math.dvi (1 page, 336 bytes).
[tutorial ] Transcript written on math.log.
[tutorial ] WARNING: display latex '\\QQ^3': latex exited with error
[tutorial ] [stdout]
...
and then it tries to build math.dvi half a dozen times more, failing each time.
Component: documentation
Author: Matthias Koeppe
Branch/Commit: ef2b25b
Reviewer: John Palmieri, Eric Gourgoulhon
Issue created by migration from https://trac.sagemath.org/ticket/32946