flake.nix

{
  inputs.nixpkgs.url = "nixpkgs";
  description = "qemu with lm32";
  outputs = { self, nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };

      qemu52 = with pkgs;
        stdenv.mkDerivation {
          name = "qemu52";
          src = fetchurl {
            url = "https://download.qemu.org/qemu-5.2.0.tar.xz";
            hash = "sha256-yxjYibYo++Y3ZysDJnidmw47gCfgRFuTZTfHhUnfF7w=";
          };
          configurePhase = "./configure --target-list=lm32-softmmu";
          buildInputs = [ pixman glib pkg-config python3 ninja ];
        };

    in {
      apps.${system} = { };
      packages.${system} = { default = qemu52; };
      devShells.${system} = { default = qemu52; };
    };
}