From 607dd14964ff962d3359d37c76489cd236e66b09 Mon Sep 17 00:00:00 2001
From: sternenseemann <sternenseemann@systemli.org>
Date: Mon, 15 Nov 2021 20:59:27 +0100
Subject: [PATCH] haskell.compiler.ghcHEAD: bootstrap using 8.10.7 binary

This should shorten the bootstrapping part (not requiring an
intermediate 9.0.1 build). Seems like 8.10.7 is still supported for
bootstrapping for the moment and allows compiling for aarch64-darwin.
---
 pkgs/top-level/haskell-packages.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index b4cd4106113d..bf340c10cb3b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -128,7 +128,7 @@ in {
       llvmPackages = pkgs.llvmPackages_10;
     };
     ghcHEAD = callPackage ../development/compilers/ghc/head.nix {
-      bootPkgs = packages.ghc901; # no binary yet
+      bootPkgs = packages.ghc8107Binary;
       inherit (buildPackages.python3Packages) sphinx;
       # Need to use apple's patched xattr until
       # https://github.com/xattr/xattr/issues/44 and