From c382915e2817c694a1eee4fc60d9562c972b9f15 Mon Sep 17 00:00:00 2001
From: Silvan Mosberger <infinisil@icloud.com>
Date: Mon, 10 Jun 2019 23:34:08 +0200
Subject: [PATCH] haskell.compiler.ghcHEAD: 20190115 -> 20190601

---
 pkgs/development/compilers/ghc/head.nix | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/compilers/ghc/head.nix b/pkgs/development/compilers/ghc/head.nix
index b263b8b187d3..141516015429 100644
--- a/pkgs/development/compilers/ghc/head.nix
+++ b/pkgs/development/compilers/ghc/head.nix
@@ -27,7 +27,7 @@
 , # Whetherto build terminfo.
   enableTerminfo ? !stdenv.targetPlatform.isWindows
 
-, version ? "8.7.20190115"
+, version ? "8.9.20190601"
 , # What flavour to build. An empty string indicates no
   # specific flavour and falls back to ghc default values.
   ghcFlavour ? stdenv.lib.optionalString (stdenv.targetPlatform != stdenv.hostPlatform)
@@ -89,14 +89,24 @@ stdenv.mkDerivation (rec {
 
   src = fetchgit {
     url = "https://gitlab.haskell.org/ghc/ghc.git/";
-    rev = "c9756dbf1ee58b117ea5c4ded45dea88030efd65";
-    sha256 = "0ja3ivyz4jrqkw6z1mdgsczxaqkjy5vw0nyyqlqr0bqxiw9p8834";
+    rev = "9bc10993bb300d3712b0f13ec6e28621d75d4204";
+    sha256 = "1s7vbinywx8ffj09nxr0h32nggjiqpssrvgmj7820k32w2yi7i8v";
   };
 
   enableParallelBuilding = true;
 
   outputs = [ "out" "doc" ];
 
+  patches = [
+    (fetchpatch rec { # https://github.com/haskell/haddock/issues/900
+     url = "https://patch-diff.githubusercontent.com/raw/haskell/haddock/pull/983.diff";
+     name = "loadpluginsinmodules.diff";
+     sha256 = "0bvvv0zsfq2581zsir97zfkggc1kkircbbajc2fz3b169ycpbha1";
+     extraPrefix = "utils/haddock/";
+     stripLen = 1;
+   })
+  ];
+
   postPatch = "patchShebangs .";
 
   # GHC is a bit confused on its cross terminology.