From 1a78981b2f5141bac2f8d0255998b9465b0043a9 Mon Sep 17 00:00:00 2001
From: Laverne Schrock <laverne@schrock.email>
Date: Sun, 25 Dec 2016 07:57:58 -0600
Subject: [PATCH] ghc-8.0.1: switch to sphinx for documentation
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Fixes #20281

"Since GHC 8.0, the User’s Guide is authored in ReStructuredText (or ReST
or RST, for short) a rich but light-weight mark-up language aimed at
producing documentation. The Sphinx tool is used to produce the final
PDF and HTML documentation."
- http://ghc.readthedocs.io/en/8.0.1/editing-guide.html
---
 pkgs/development/compilers/ghc/8.0.1.nix | 4 ++--
 pkgs/top-level/haskell-packages.nix      | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/ghc/8.0.1.nix b/pkgs/development/compilers/ghc/8.0.1.nix
index 58e2ff18c1be..1834f3ae50b6 100644
--- a/pkgs/development/compilers/ghc/8.0.1.nix
+++ b/pkgs/development/compilers/ghc/8.0.1.nix
@@ -1,5 +1,5 @@
 { stdenv, fetchurl, fetchpatch, bootPkgs, perl, gmp, ncurses, libiconv, binutils, coreutils
-, hscolour, patchutils, libxml2, libxslt, docbook_xsl, docbook_xml_dtd_45, docbook_xml_dtd_42
+, hscolour, patchutils, sphinx
 }:
 
 let
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
     (fetchFilteredPatch { url = https://git.haskell.org/ghc.git/patch/2f8cd14fe909a377b3e084a4f2ded83a0e6d44dd; sha256 = "06zvlgcf50ab58bw6yw3krn45dsmhg4cmlz4nqff8k4z1f1bj01v"; })
   ] ++ stdenv.lib.optional stdenv.isLinux ./ghc-no-madv-free.patch;
 
-  buildInputs = [ ghc perl libxml2 libxslt docbook_xsl docbook_xml_dtd_45 docbook_xml_dtd_42 hscolour ];
+  buildInputs = [ ghc perl hscolour sphinx];
 
   enableParallelBuilding = true;
 
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 4cdc70fed4fa..59c737dce6d1 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -45,6 +45,7 @@ rec {
     ghc801 = callPackage ../development/compilers/ghc/8.0.1.nix rec {
       bootPkgs = packages.ghc7103;
       inherit (bootPkgs) hscolour;
+      sphinx = pkgs.python27Packages.sphinx;
     };
     ghc802 = callPackage ../development/compilers/ghc/8.0.2.nix rec {
       bootPkgs = packages.ghc7103;