From fe7b49b6ce2216c9060487de0273ef1fb474d4f0 Mon Sep 17 00:00:00 2001
From: Astro <astro@spaceboyz.net>
Date: Sun, 15 Dec 2019 21:27:41 +0100
Subject: [PATCH] mateamt: hack around new default.nix

---
 mateamt.nix | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/mateamt.nix b/mateamt.nix
index 71c82f4..e80e12e 100644
--- a/mateamt.nix
+++ b/mateamt.nix
@@ -2,12 +2,24 @@
 }:
 with pkgs;
 let
-  mateamt = haskellPackages.callPackage <mateamt/shell.nix>;
+  mateamtSrc = stdenv.mkDerivation {
+    name = "mateamt-src";
+    src = <mateamt>;
+    phases = [ "unpackPhase" "patchPhase" "installPhase" ];
+    patchPhase = ''
+      substituteInPlace default.nix \
+        --replace \
+        "builtins.fetchTarball https://github.com/input-output-hk/haskell.nix/archive/master.tar.gz" \
+        "<haskell-nix>"
+    '';
+    installPhase = "cp -ar . $out";
+  };
+  mateamt = haskellPackages.callPackage "${mateamtSrc}/shell.nix";
   ghcBlacklist = [
-    "ghc822"
-    "ghc844"
-    "ghc881"
-    "ghcHEAD"
+    # "ghc822"
+    # "ghc844"
+    # "ghc881"
+    # "ghcHEAD"
   ];
   ghcVersions =
     builtins.filter (p: