From bc8d3ab9d134baa4517757f6f7ab80857361bd65 Mon Sep 17 00:00:00 2001
From: tv <tv@shackspace.de>
Date: Sun, 27 Jul 2014 11:02:45 +0200
Subject: initial commit

---
 default.nix | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 default.nix

(limited to 'default.nix')

diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..bba6906
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,24 @@
+
+let
+  pkgs = import <nixpkgs> {};
+  hsEnv = pkgs.haskellPackages.ghcWithPackages (hsPkgs : with hsPkgs; [
+    mtl
+  ]);
+in
+
+pkgs.myEnvFun {
+  name = "hack";
+  buildInputs = with pkgs; [
+    hsEnv
+  ];
+
+  # XXX https://nixos.org/wiki/Haskell says:
+  #   Since tools (such as hdevtools [snap-loader-dynamic in our case]) that
+  #   rely on the ghc-api to do haskell language manipulation are sensitive
+  #   to nix-wrapping of ghc, we need the extraCmds line to ensure the
+  #   proper ghc-wrapping environment variables are set inside the
+  #   dev-environment shell.
+  extraCmds = ''
+    $(grep export ${hsEnv.outPath}/bin/ghc)
+  '';
+}
-- 
cgit v1.2.3