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- let requiredVersion = import ./lib/minver.nix; in
-
- if ! builtins ? nixVersion || builtins.compareVersions requiredVersion builtins.nixVersion == 1 then
-
- abort ''
-
- This version of Nixpkgs requires Nix >= ${requiredVersion}, please upgrade:
-
- - If you are running NixOS, `nixos-rebuild' can be used to upgrade your system.
-
- - Alternatively, with Nix > 2.0 `nix upgrade-nix' can be used to imperatively
- upgrade Nix. You may use `nix-env --version' to check which version you have.
-
- - If you installed Nix using the install script (https://nixos.org/nix/install),
- it is safe to upgrade by running it again:
-
- curl https://nixos.org/nix/install | sh
-
- For more information, please see the NixOS release notes at
- https://nixos.org/nixos/manual or locally at
- ${toString ./nixos/doc/manual/release-notes}.
-
- If you need further help, see https://nixos.org/nixos/support.html
- ''
-
- else
-
- import ./pkgs/top-level/impure.nix
|