zig-overlay/templates/compiler-dev/flake.nix

{
  description = "Zig compiler development.";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    flake-utils.url = "github:numtide/flake-utils";

    # Used for shell.nix
    flake-compat = {
      url = "github:edolstra/flake-compat";
      flake = false;
    };
  };

  outputs = {
    self,
    nixpkgs,
    flake-utils,
    ...
  } @ inputs:
    flake-utils.lib.eachDefaultSystem (
      system: let
        pkgs = import nixpkgs {inherit system;};
      in {
        devShells.default = pkgs.mkShell {
          nativeBuildInputs = with pkgs;
            [
              cmake
              gdb
              libxml2
              ninja
              qemu
              wasmtime
              zlib
            ]
            ++ (with llvmPackages_18; [
              clang
              clang-unwrapped
              lld
              llvm
            ]);

          hardeningDisable = ["all"];
        };

        # For compatibility with older versions of the `nix` binary
        devShell = self.devShells.${system}.default;
      }
    );
}