nixos-option: fix build against nix 2.24

[Mic92]

Things done

I noticed today we still have nix 2.18 in our default nixos closure. Bumping nixos-option fixes that. This pull request just does the minimum to get nixos-option build.
I have already follow up commits to improve things further: #355748

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[fricklerhandwerk]

LGTM at a cursory glance

[Ericson2314]

Otherwise looks good!

[foolnotion]

This breaks the build on the current master. Last good commit is d13c9db

nix log /nix/store/0vj9pr9s98dkjv2imwdgp1vwfz5fnc8r-nixos-option.drv
warning: The interpretation of store paths arguments ending in `.drv` recently changed. If this command is now failing try again with '/nix/store/0vj9pr9s98dkjv2imwdgp1vwfz5fnc8r-nixos-option.drv^*'
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/gk2qs90xfhv0h19h8dca9hn9j3wkix6f-nixos-option
source root is nixos-option
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
Running phase: updateAutotoolsGnuConfigScriptsPhase
@nix { "action": "setPhase", "phase": "updateAutotoolsGnuConfigScriptsPhase" }
Running phase: configurePhase
@nix { "action": "setPhase", "phase": "configurePhase" }
mesonConfigurePhase flags: --prefix=/nix/store/z3bnffna084is69k0qn2jhimjshav2gm-nixos-option --libdir=/nix/store/z3bnffna084is69k0qn2jh>
The Meson build system
Version: 1.6.0
Source dir: /build/nixos-option
Build dir: /build/nixos-option/build
Build type: native build
Project name: nixos-option
Project version: 0.1.6
C++ compiler for the host machine: g++ (gcc 13.3.0 "g++ (GCC) 13.3.0")
C++ linker for the host machine: g++ ld.bfd 2.43.1
Host machine cpu family: x86_64
Host machine cpu: x86_64
Found pkg-config: YES (/nix/store/f1gamyykr0f8n4afy910ass2jx2g9zkv-pkg-config-wrapper-0.29.2/bin/pkg-config) 0.29.2
Run-time dependency nix-main found: YES 2.18.9
Run-time dependency nix-store found: YES 2.18.9
Run-time dependency nix-expr found: YES 2.18.9
Run-time dependency nix-cmd found: YES 2.18.9
Did not find CMake 'cmake'
Found CMake: NO
Run-time dependency nix-flake found: NO (tried pkgconfig)

meson.build:10:16: ERROR: Dependency "nix-flake" not found, tried pkgconfig

A full log can be found at /build/nixos-option/build/meson-logs/meson-log.txt

EDIT: nevermind, all good. I'd forgotten that i tested lix at some point and that machine was still using it.

[nixos-discourse]

This pull request has been mentioned on NixOS Discourse. There might be relevant details there:

https://discourse.nixos.org/t/2024-11-13-nix-team-meeting-minutes-194/56211/1

[lf-]

This effort would have been better spent on #313497 as nixos-option is a reimplementation of a bunch of the nix CLI front-end and is a giant pile of bad code. We should just get rid of it being a C++ API client and use the CLI and Nix expressions.

Nevertheless, thanks for fixing the dependency in the default closure!