default.nix

rec {
  nixpkgs = builtins.fetchTarball {
    name = "nixos-237781.32b46dd897a";
    url = "https://github.com/nixos/nixpkgs/archive/32b46dd897ab2143a609988a04d87452f0bbef59.tar.gz";
    sha256 = "1gzfrpjnr1bz9zljsyg3a4zrhk8r927sz761mrgcg56dwinkhpjk";
  };
  pkgs = import nixpkgs {};
  rust-xtensa = pkgs.rustc.overrideAttrs (old: {
    src = pkgs.fetchFromGitHub {
      owner = "MabezDev";
      repo = "rust-xtensa";
      rev = "83ae8c3ba9864eb42de6346f10a18bf2339945d3";
      sha256 = "0lbihy0c1m3iwi7csw269y6qi5cqz5q423bd1ic1plns5v1jwc9d";
    };
    configureFlags = [
      "--experimental-targets=Xtensa"
    ] ++ (old.configureFlags or []);
  });
}