Missing fonts when compiling latex documents

[Alexandros Theodotou]

Hi Guix,

I spent a few hours trying to get texi2pdf working on a simple tex
file:
```
\documentclass[10pt]{article}
\usepackage[margin=3cm]{geometry}
\title{\bfseries\Huge My Name}
\author{address@hidden}
\date{}
\begin{document}
\maketitle
\end{document}
```

I tried installing a bunch of tex packages to get this to compile, but
I kept getting errors about fonts not being found:
```
texlive-generic-pdftex texlive-bin texlive-latex-xkeyval texlive-fonts-
latex texlive-fonts-ec texlive-latex-mflogo texlive-latex-type1cm 
texinfo texlive-ae texlive-txfonts texlive-cm-super texlive-fontinst
texlive-graphics-def texlive-kpathsea texlive-latex-psnfss texlive-
latexconfig texlive-metafont-base texlive-latex-base texlive-latex-pdfx 
texlive-latex-pgf texlive-latex-geometry texlive-latex-graphics
```

I tried this for example:
```
guix environment -C --ad-hoc texlive-fonts-ec texlive-tex-texinfo
texlive-generic-epsf texinfo coreutils sed texlive-bin grep texlive-
latex-base tar texlive-latex-graphics texlive-latex-geometry
texi2pdf my_tex_file.tex
```

It was not until I installed the "texlive" package that I manged to
compile the .tex file.

I found that the following are the minimum packages required to compile
a simple latex file into pdf:
```
guix environment -C --ad-hoc texinfo coreutils sed grep tar texlive
diffutils
```

Maybe this would be straight forward to some users but it took me some
time to figure out which packages are needed since I don't know much
about latex. I found a lot of information about how to install the
fonts on other distros when I searched online, but for guix I had to
experiment on my own, so maybe this information should be mentioned
somewhere, maybe a blog post? Or maybe someone will stumble on this
post.

Anyway, just posting my findings :-)

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