shell.nix

{ nixpkgs ? import <nixpkgs> {} }:
let
  inherit (nixpkgs) pkgs;
  qbe = pkgs.stdenv.mkDerivation {
    name = "qbe-unstable";

    src = pkgs.fetchgit {
      url = "git://c9x.me/qbe.git";
      sha256 = "0r2af5036bbqwd3all6q0mlwrjcww4xgi1yr8l5xgddmx6711ygw";
    };

    makeFlags = [ "PREFIX=$(out)" ];
    doCheck = true;
  };
  cachix = (import (fetchTarball https://cachix.org/api/v1/install) {}).cachix;
in pkgs.stdenv.mkDerivation {
  name = "typhon-env";
  buildInputs = with pkgs; [
    git pythonPackages.pyflakes rlwrap
    gist tidyp diffstat
    linuxPackages.perf
    gnuplot xclip
    capnproto
    gdb valgrind ltrace
    # The QBE backend experiment.
    # qbe mps
    # Cachix.
    cachix
    imagemagick
  ];
}