Error in Fedora 38 with texlive amb memoir class

[Rafel Amer]

I have a simple TeX document test.tex

\documentclass[12pt,a4paper]{memoir}

\begin{document}

This is a test

\end{document}

If I run pdflatex test.tex in Fedora 37, it works fine:

This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./test.tex
LaTeX2e <2020-10-01> patch level 4
L3 programming layer <2021-05-07>
(/usr/share/texlive/texmf-dist/tex/latex/memoir/memoir.cls
Document Class: memoir 2021/03/23 v3.7o configurable book, report, article docu
ment class
(/usr/share/texlive/texmf-dist/tex/generic/iftex/iftex.sty)
(/usr/share/texlive/texmf-dist/tex/latex/memoir/mem12.clo)
(/usr/share/texlive/texmf-dist/tex/latex/tools/array.sty)
(/usr/share/texlive/texmf-dist/tex/latex/tools/dcolumn.sty)
(/usr/share/texlive/texmf-dist/tex/latex/tools/delarray.sty)
(/usr/share/texlive/texmf-dist/tex/latex/tools/tabularx.sty)
(/usr/share/texlive/texmf-dist/tex/latex/textcase/textcase.sty))
(/usr/share/texlive/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def)
(./test.aux) [1{/usr/share/texlive/texmf-var/fonts/map/pdftex/updmap/pdftex.map
}] (./test.aux) )</usr/share/texlive/texmf-dist/fonts/type1/public/amsfonts/cm/
cmr12.pfb>
Output written on test.pdf (1 page, 9544 bytes).
Transcript written on test.log.

But, if I run the same command if Fedora 38-beta, I get the following error

This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022) (preloaded format=pdflatex)
restricted \write18 enabled.
entering extended mode
(./test.tex
LaTeX2e <2022-06-01> patch level 5
L3 programming layer <2022-12-17>
! Use of @tempa doesn’t match its definition.
u
ndefined
l.2

?

Any help is appreciated. Thank you very much

[Lukas Ruzicka]

On Thu, Apr 13, 2023 at 11:25 AM Rafel Amer  wrote:
> I have a simple TeX document test.tex
>
> \documentclass[12pt,a4paper]{memoir}
>
> \begin{document}
>
> This is a test
>
> \end{document}
>
> But, if I run the same command if Fedora 38-beta, I get the following error

I am experiencing the same issue on my Fedora 38, but I was not able to
find out why. I tried to downgrade the memoir package and
the result was the same.

[Rafel Amer]

I think the problem is in the file (I don't know where)
/usr/share/texlive/texmf-dist/tex/latex/base/latex.ltx
because if I replace this file with the same file distributed with TeXLive 2023 and regenerate the formats pdflatex and lualatex, then the commands
~$ pdflatex test.tex
and 
~$ lualatex test.tex
work. The give some warnings, but the output PDF files are OK

[Rafel Amer]

Hi!
I have applied the patch

--- latex.ltx	2023-04-13 18:00:51.004455802 +0200
+++ /usr/share/texlive/texmf-dist/tex/latex/base/latex.ltx	2023-04-13 18:07:50.797322996 +0200
@@ -15798,6 +15798,8 @@
 @maxdepth = \maxdepth
 \newdimen\paperheight
 \newdimen\paperwidth
+\newdimen\stockheight
+\newdimen\stockwidth
 \newif \if@insert
 \newif \if@fcolmade
 \newif \if@specialpage @specialpagefalse
and generated again the formats pdflatex and lualatex and now it works fine.

The patch is to add two lines to the file /usr/share/texlive/texmf-dist/tex/latex/base/latex.ltx

Best regards,
Rafel Amer