gnu: TeX Live: Update to 2020.0.
* guix/build-system/texlive.scm (%texlive-tag): Set to 2020.0.
(%texlive-revision): Set to 54632.
* gnu/packages/tex.scm (texlive-extra-src, texlive-texmf-src, texlive-bin,
texlive-texmf, texlive): Update to 20200406.
(texlive-bin)[source](patches): Remove.
[arguments]: Adjust poppler compatibility phase for new upstream patches.
* gnu/packages/tex.scm (hyph-utf8-scripts, texlive-docstrip, texlive-unicode-data
texlive-hyphen-base, texlive-dvips, texlive-metafont-base, texlive-fontinst,
texlive-fontname, texlive-tex-plain, texlive-hyphen-bulgarian, texlive-hyphen-chinese,
texlive-hyphen-hungarian, texlive-hyphen-latin, texlive-hyphen-sanskrit,
texlive-hyphen-spanish, texlive-hyph-utf8, texlive-kpathsea,
texlive-latexconfig, texlive-latex-base, texlive-union,
texlive-latex-filecontents, texlive-latex-fancyvrb, texlive-graphics-def,
texlive-latex-graphics, texlive-latex-oberdiek, texlive-latex-tools,
texlive-latex-l3kernel, texlive-latex-l3packages, texlive-latex-fontspec,
texlive-latex-amsmath, texlive-latex-babel, texlive-latex-draftwatermark,
texlive-etoolbox, texlive-latex-geometry, texlive-latex-polyglossia,
texlive-latex-supertabular, texlive-tex-texinfo, texlive-latex-appendix,
texlive-latex-colortbl, texlive-latex-listings, texlive-inconsolata,
texlive-latex-enumitem, texlive-latex-multirow, texlive-latex-overpic,
texlive-latex-parskip, texlive-latex-pdfpages, texlive-libertine,
texlive-latex-titlesec, texlive-metapost, texlive-latex-acmart,
texlive-latex-wasysym, texlive-latex-preview, texlive-latex-acronym,
texlive-pdftex, texlive-latex-media9, texlive-latex-ocgx2, texlive-latex-ms,
texlive-generic-ulem, texlive-latex-pgf, texlive-latex-koma-script,
texlive-generic-listofitems, texlive-bibtex, texlive-context-base,
texlive-beamer, texlive-pstricks, texlive-marginnote, texlive-iftex,
texlive-tools, texlive-siunitx, texlive-booktabs, texlive-csquotes,
texlive-biblatex, texlive-microtype, texlive-caption, texlive-ydoc,
texlive-courier, texlive-hyperref, texlive-fontspec, texlive-l3build,
texlive-luaotfload, texlive-babel, texlive-tipa, texlive-jknappen,
texlive-wasy, texlive-context, texlive-cabin, texlive-fourier,
texlive-mweights, texlive-newtx, texlive-xcharter, texlive-tcolorbox): Update
hashes.
(texlive-hyphen-bulgarian): Don't include removed files.
(texlive-hyphen-hungarian, texlive-hyphen-sanskrit): Adjust for directory
rename.
(texlive-hyphen-chinese, texlive-hyphen-latin): Add more files.
(texlive-hyphen-macedonian): New public variable.
(texlive-metafont-base)[source]: Switch to SVN-MULTI-FETCH.
[arguments]: Adjust for extra source files.
(texlive-latex-base)[arguments]: Disable more formats.
[propagated-inputs]: Add TEXLIVE-HYPHEN-MACEDONIAN.
(texlive-fontinst): Don't include "scripts/texlive/fontinst.sh".
(texlive-generic-iftex): New public variable.
(texlive-iftex, texlive-generic-ifxetex): Deprecate in favor of
TEXLIVE-GENERIC-IFTEX.
(texlive-latex-oberdiek)[propagated-inputs]: Change from
TEXLIVE-GENERIC-IFXETEX to TEXLIVE-GENERIC-IFTEX.
(texlive-latex-xkeyval)[native-inputs]: Likewise.
(texlive-default-updmap.cfg): Remove variable.
* gnu/packages/patches/texlive-bin-poppler-0.83.patch,
gnu/packages/patches/texlive-bin-poppler-0.86.patch: Delete files.
* gnu/local.mk (dist_patch_DATA): Adjust accordingly.
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