From 546d0c04608cca449036e987ac0fe401d4cd0135 Mon Sep 17 00:00:00 2001
From: Profpatsch <mail@profpatsch.de>
Date: Mon, 16 Jan 2017 00:13:13 +0100
Subject: [PATCH] haskell: add doc outputs to with-packages-wrapper.nix

We want to have all doc outputs as well (also e.g. ghc documentation).
Adds a bit of documentation to the postInstall script.
---
 pkgs/development/haskell-modules/with-packages-wrapper.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/development/haskell-modules/with-packages-wrapper.nix b/pkgs/development/haskell-modules/with-packages-wrapper.nix
index 7929d99de153..6a459433a451 100644
--- a/pkgs/development/haskell-modules/with-packages-wrapper.nix
+++ b/pkgs/development/haskell-modules/with-packages-wrapper.nix
@@ -52,10 +52,12 @@ buildEnv {
   # as a dedicated drv attribute, like `compiler-name`
   name = ghc.name + "-with-packages";
   paths = paths ++ [ghc];
+  extraOutputsToInstall = [ "out" "doc" ];
   inherit ignoreCollisions;
   postBuild = ''
     . ${makeWrapper}/nix-support/setup-hook
 
+    # Work around buildEnv sometimes deciding to make bin a symlink
     if test -L "$out/bin"; then
       binTarget="$(readlink -f "$out/bin")"
       rm "$out/bin"
@@ -63,6 +65,8 @@ buildEnv {
       chmod u+w "$out/bin"
     fi
 
+    # wrap compiler executables with correct env variables
+
     for prg in ${ghcCommand} ${ghcCommand}i ${ghcCommand}-${ghc.version} ${ghcCommand}i-${ghc.version}; do
       if [[ -x "${ghc}/bin/$prg" ]]; then
         rm -f $out/bin/$prg