nixos/manualPDF: use new `texlive` instead of `tetex`

This includes updating dblatex and crafting ~100 MB TeX package set
to make our manual compile.

nixos/doc/manual/default.nix

···
 
     inherit sources;
 
-    buildInputs = [ libxml2 libxslt dblatex tetex ];
+    buildInputs = [ libxml2 libxslt dblatex dblatex.tex ];
 
     buildCommand = ''
-      # TeX needs a writable font cache.
-      export VARTEXFONTS=$TMPDIR/texfonts
-
       ${copySources}
 
       dst=$out/share/doc/nixos
···
 
       mkdir -p $out/nix-support
       echo "doc-pdf manual $dst/manual.pdf" >> $out/nix-support/hydra-build-products
-    ''; # */
+    '';
   };
 
   # Generate the NixOS manpages.

pkgs/tools/typesetting/tex/dblatex/default.nix

···
-{ stdenv, fetchurl, python, libxslt, tetex
-, enableAllFeatures ? false, imagemagick ? null, transfig ? null, inkscape ? null, fontconfig ? null, ghostscript ? null }:
+{ stdenv, fetchurl, python, libxslt, texlive
+, enableAllFeatures ? false, imagemagick ? null, transfig ? null, inkscape ? null, fontconfig ? null, ghostscript ? null
+
+, tex ? texlive.combine { # satisfy all packages that ./configure mentions
+    inherit (texlive) scheme-basic epstopdf anysize appendix changebar
+      fancybox fancyvrb float footmisc listings jknapltx/*for mathrsfs.sty*/
+      multirow overpic pdfpages rotating stmaryrd subfigure titlesec wasysym
+      # pkgs below don't seem requested by dblatex, but our manual fails without them
+      ec zapfding symbol eepic times rsfs cs tex4ht courier helvetic ly1;
+  }
+}:
 
 # NOTE: enableAllFeatures just purifies the expression, it doesn't actually
 # enable any extra features.
···
   ghostscript != null;
 
 stdenv.mkDerivation rec {
-  name = "dblatex-0.3.4";
+  name = "dblatex-0.3.7";
 
   src = fetchurl {
     url = "mirror://sourceforge/dblatex/${name}.tar.bz2";
-    sha256 = "120w3wm07qx0k1grgdhjwm2vpwil71icshjvqznskp1f6ggch290";
+    sha256 = "0bkjgrn03dy5c7438s429wnv6z5ynxkr4pbhp2z49kynskgkzkjr";
   };
 
-  buildInputs = [ python libxslt tetex ]
+  buildInputs = [ python libxslt tex ]
     ++ stdenv.lib.optionals enableAllFeatures [ imagemagick transfig ];
 
   # TODO: dblatex tries to execute texindy command, but nixpkgs doesn't have
···
         sed -e 's|cmd = \["xsltproc|cmd = \["${libxslt}/bin/xsltproc|g' \
             -e 's|Popen(\["xsltproc|Popen(\["${libxslt}/bin/xsltproc|g' \
             -e 's|cmd = \["texindy|cmd = ["nixpkgs_is_missing_texindy|g' \
-            -e 's|cmd = "epstopdf|cmd = "${tetex}/bin/epstopdf|g' \
-            -e 's|cmd = \["makeindex|cmd = ["${tetex}/bin/makeindex|g' \
-            -e 's|doc.program = "pdflatex"|doc.program = "${tetex}/bin/pdflatex"|g' \
-            -e 's|self.program = "latex"|self.program = "${tetex}/bin/latex"|g' \
-            -e 's|Popen("pdflatex|Popen("${tetex}/bin/pdflatex|g' \
+            -e 's|cmd = "epstopdf|cmd = "${tex}/bin/epstopdf|g' \
+            -e 's|cmd = \["makeindex|cmd = ["${tex}/bin/makeindex|g' \
+            -e 's|doc.program = "pdflatex"|doc.program = "${tex}/bin/pdflatex"|g' \
+            -e 's|self.program = "latex"|self.program = "${tex}/bin/latex"|g' \
+            -e 's|Popen("pdflatex|Popen("${tex}/bin/pdflatex|g' \
             -e 's|"fc-match"|"${fontconfig}/bin/fc-match"|g' \
             -e 's|"fc-list"|"${fontconfig}/bin/fc-list"|g' \
             -e 's|cmd = "inkscape|cmd = "${inkscape}/bin/inkscape|g' \
···
   '';
 
   buildPhase = "true";
-  
+
   installPhase = ''
     python ./setup.py install --prefix="$out" --use-python-path --verbose
   '';
+
+  passthru = { inherit tex; };
 
   meta = {
     description = "A program to convert DocBook to DVI, PostScript or PDF via LaTeX or ConTeXt";