This seems like a packaging error: /usr/share/texmf-dist/tex/latex/lwarp/lwarp.sty l.31: \RequirePackage{ifptex} However, dev-texlive/texlive-latexrecommended-2021 which includes lwarp does not include ifptex or pull a package providing it. So we get the error which can be circumvented by an empty file ifptex.sty: lwarpmk: v0.895 Automated make for the LaTeX Lwarp package. lwarpmk: Reading lwarpmk.conf. lwarpmk: Compiling with: xelatex Publikationsverzeichnis_html This is XeTeX, Version 3.141592653-2.6-0.999993 (TeX Live 2021 Gentoo Linux) (preloaded format=xelatex) restricted \write18 enabled. entering extended mode (./Publikationsverzeichnis_html.tex LaTeX2e <2020-10-01> patch level 4 L3 programming layer <2021-02-18> (./Publikationsverzeichnis.tex (/usr/share/texmf-dist/tex/latex/base/article.cls Document Class: article 2020/04/10 v1.4m Standard LaTeX document class (/usr/share/texmf-dist/tex/latex/base/size12.clo)) (/usr/share/texmf-dist/tex/latex/fontspec/fontspec.sty (/usr/share/texmf-dist/tex/latex/l3packages/xparse/xparse.sty (/usr/share/texmf-dist/tex/latex/l3kernel/expl3.sty (/usr/share/texmf-dist/tex/latex/l3backend/l3backend-xetex.def (|extractbb --version))) (/usr/share/texmf-dist/tex/latex/l3packages/xparse/xparse-2020-10-01.sty (/usr/share/texmf-dist/tex/latex/l3packages/xparse/xparse-generic.tex))) (/usr/share/texmf-dist/tex/latex/fontspec/fontspec-xetex.sty (/usr/share/texmf-dist/tex/latex/base/fontenc.sty) (/usr/share/texmf-dist/tex/latex/fontspec/fontspec.cfg))) (/usr/share/texmf-dist/tex/latex/lwarp/lwarp.sty (/usr/share/texmf-dist/tex/generic/iftex/iftex.sty) (/usr/share/texmf-dist/tex/generic/iftex/ifpdf.sty) ! LaTeX Error: File `ifptex.sty' not found. Thanks and best regards, Bernd Reproducible: Always
