From 6be7d949149e5bbd0bce1858c5d9a5ce1aee1177 Mon Sep 17 00:00:00 2001
From: Kosyrev Serge <serge.kosyrev@iohk.io>
Date: Thu, 1 Mar 2018 21:17:21 +0300
Subject: [PATCH 1/2] ghc841:  bump to 8.4.1-release

---
 pkgs/development/compilers/ghc/8.4.1.nix | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/compilers/ghc/8.4.1.nix b/pkgs/development/compilers/ghc/8.4.1.nix
index 8f7cdc9568e..d60060000fa 100644
--- a/pkgs/development/compilers/ghc/8.4.1.nix
+++ b/pkgs/development/compilers/ghc/8.4.1.nix
@@ -24,7 +24,7 @@
   # platform). Static libs are always built.
   enableShared ? true
 
-, version ? "8.4.0.20180224"
+, version ? "8.4.1"
 , # Whether to backport https://phabricator.haskell.org/D4388 for
   # deterministic profiling symbol names, at the cost of a slightly
   # non-standard GHC API
@@ -77,8 +77,8 @@ stdenv.mkDerivation rec {
 
   src = fetchgit {
     url = "git://git.haskell.org/ghc.git";
-    rev = "a1e15c8f59092ef2d11be7966bd20688d8dc01e6";
-    sha256 = "1pimf5ryl76r3vwnc2n0qzk4yh7zckp2r2g5rlz8nbddsws2v893";
+    rev = "0a3e2f324dbd525d626ebd3d97e8ffa1cf2f0ffb";
+    sha256 = "1m51khnmf8gw203d8kh6y4ivh0acb2wiqqnb950yfbg2a2k7bcfi";
   };
 
   enableParallelBuilding = true;

From 0145a00d9c34c56e37654a9df228cf2b63f6c326 Mon Sep 17 00:00:00 2001
From: Kosyrev Serge <serge.kosyrev@iohk.io>
Date: Wed, 7 Mar 2018 00:46:02 +0300
Subject: [PATCH 2/2] ghc841:  fix for the bump-broken integer-gmp: m4 is now a
 dependency

---
 pkgs/development/compilers/ghc/8.4.1.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/ghc/8.4.1.nix b/pkgs/development/compilers/ghc/8.4.1.nix
index d60060000fa..dd0e5e4b057 100644
--- a/pkgs/development/compilers/ghc/8.4.1.nix
+++ b/pkgs/development/compilers/ghc/8.4.1.nix
@@ -15,7 +15,7 @@
 
 , # If enabled, GHC will be built with the GPL-free but slower integer-simple
   # library instead of the faster but GPLed integer-gmp library.
-  enableIntegerSimple ? false, gmp ? null
+  enableIntegerSimple ? false, gmp ? null, m4
 
 , # If enabled, use -fPIC when compiling static libs.
   enableRelocatedStaticLibs ? targetPlatform != hostPlatform
@@ -149,7 +149,7 @@ stdenv.mkDerivation rec {
   # masss-rebuild.
   crossConfig = true;
 
-  nativeBuildInputs = [ ghc perl autoconf automake happy alex python3 ];
+  nativeBuildInputs = [ ghc perl autoconf automake m4 happy alex python3 ];
 
   # For building runtime libs
   depsBuildTarget = toolsForTarget;