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.

gnu/local.mk

@@ -1688,8 +1688,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/tcsh-fix-autotest.patch			\
   %D%/packages/patches/teensy-loader-cli-help.patch		\
   %D%/packages/patches/texinfo-5-perl-compat.patch		\
-  %D%/packages/patches/texlive-bin-poppler-0.83.patch		\
-  %D%/packages/patches/texlive-bin-poppler-0.86.patch		\
   %D%/packages/patches/telegram-purple-adjust-test.patch	\
   %D%/packages/patches/telepathy-glib-channel-memory-leak.patch	\
   %D%/packages/patches/texi2html-document-encoding.patch	\

gnu/packages/docbook.scm

@@ -430,7 +430,7 @@ (define-public dblatex
                                         texlive-fonts-rsfs
                                         texlive-fonts-stmaryrd
 
-                                        texlive-generic-ifxetex)))
+                                        texlive-generic-iftex)))
        ("imagemagick" ,imagemagick)     ;for convert
        ("inkscape" ,inkscape)           ;for svg conversion
        ("docbook" ,docbook-xml)

gnu/packages/patches/texlive-bin-poppler-0.83.patch

@@ -1,52 +0,0 @@
-Fix build with Poppler 0.83 and later.
-
-Taken from Arch Linux, but adjusted to patch the versioned Poppler
-files, as upstream applies it after copying them in place.
-https://git.archlinux.org/svntogit/packages.git/tree/trunk/texlive-poppler-0.83.patch?h=packages/texlive-bin
-
-diff -ru texlive-source-orig/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc texlive-source/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
---- texlive-source-orig/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
-+++ texlive-source/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc
-@@ -723,7 +723,7 @@
- #endif
-     // initialize
-     if (!isInit) {
--        globalParams = new GlobalParams();
-+        globalParams.reset(new GlobalParams());
-         globalParams->setErrQuiet(false);
-         isInit = true;
-     }
-@@ -1108,6 +1108,5 @@
-             delete_document(p);
-         }
-         // see above for globalParams
--        delete globalParams;
-     }
- }
-diff -ru texlive-source-orig/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc texlive-source/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
---- texlive-source-orig/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
-+++ texlive-source/texk/web2c/pdftexdir/pdftosrc-poppler0.76.0.cc
-@@ -79,7 +79,7 @@
-         exit(1);
-     }
-     fileName = new GString(argv[1]);
--    globalParams = new GlobalParams();
-+    globalParams.reset(new GlobalParams());
-     doc = new PDFDoc(fileName);
-     if (!doc->isOk()) {
-         fprintf(stderr, "Invalid PDF file\n");
-@@ -100,7 +100,7 @@
-     if (objnum == 0) {
-         srcStream = catalogDict.dictLookup("SourceObject");
-         static char const_SourceFile[] = "SourceFile";
--        if (!srcStream.isStream(const_SourceFile)) {
-+        if (!srcStream.isDict(const_SourceFile)) {
-             fprintf(stderr, "No SourceObject found\n");
-             exit(1);
-         }
-@@ -202,5 +202,4 @@
-         fprintf(stderr, "Cross-reference table extracted to %s\n", outname);
-     fclose(outfile);
-     delete doc;
--    delete globalParams;
- }

gnu/packages/patches/texlive-bin-poppler-0.86.patch

@@ -1,17 +0,0 @@
-Fix build with Poppler 0.86 and later.
-
-Taken from Arch Linux, but adjusted to patch the versioned Poppler
-files, as upstream applies it after copying them in place.
-https://git.archlinux.org/svntogit/packages.git/tree/trunk/texlive-poppler-0.86.patch?h=packages/texlive-bin
-
---- a/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc	2020-03-03 21:11:35.102711802 +0000
-+++ b/texk/web2c/pdftexdir/pdftoepdf-poppler0.76.0.cc	2020-03-03 21:13:13.057420111 +0000
-@@ -757,7 +757,7 @@
-     if (page_name) {
-         // get page by name
-         GString name(page_name);
--        LinkDest *link = pdf_doc->doc->findDest(&name);
-+        LinkDest *link = pdf_doc->doc->findDest(&name).get();
-         if (link == 0 || !link->isOk())
-             pdftex_fail("PDF inclusion: invalid destination <%s>", page_name);
-         Ref ref = link->getPageRef();

guix/build-system/texlive.scm

@@ -44,8 +44,8 @@ (define-module (guix build-system texlive)
 
 ;; These variables specify the SVN tag and the matching SVN revision.  They
 ;; are taken from https://www.tug.org/svn/texlive/tags/
-(define %texlive-tag "texlive-2019.3")
-(define %texlive-revision 51265)
+(define %texlive-tag "texlive-2020.0")
+(define %texlive-revision 54632)
 
 (define (texlive-origin name version locations hash)
   "Return an <origin> object for a TeX Live package consisting of multiple