Hi,
> But I couldn't find any texlive package providing `l3regex.sty`. > According to https://www.ctan.org/pkg/l3regex it should be included in > `texlive-latex-l3kernel`. > > But something is wrong with the build: > ``` > find $(guix build --source texlive-latex-l3kernel) -name "*regex*" > /gnu/store/46sm302ggnmk5hcr08psiazj24svpp5d-texlive-latex-l3kernel-51265-checkout/l3regex.dtx > > find $(guix build texlive-latex-l3kernel) -name "*regex*" > [no result]. > ``` Thanks for the report. Yes, the “texlive-latex-l3kernel” package is incomplete. Most of the packages whose names follow the “texlive-{latex,tex,generic}-*” pattern are incomplete because they predate the introduction of “texlive-origin” (and more importantly “svn-multi-fetch”). For all of these packages we need to write replacements that include all source files as listed in $(guix build texlive-bin)/share/tlpkg/texlive.tlpdb -- Ricardo
