tjh.dev
nixpkgs mirror (for testing)
github.com/NixOS/nixpkgs
nix
1{
2 stdenv,
3 lib,
4 fetchFromGitHub,
5 meson,
6 ninja,
7 pkg-config,
8 python3,
9 zlib,
10 gtest,
11 eigen,
12}:
13
14stdenv.mkDerivation rec {
15 pname = "lc0";
16 version = "0.31.2";
17
18 src = fetchFromGitHub {
19 owner = "LeelaChessZero";
20 repo = "lc0";
21 tag = "v${version}";
22 hash = "sha256-8watDDxSyZ5khYqpXPyjQso2MkOzfI6o2nt0vkuiEUI=";
23 fetchSubmodules = true;
24 };
25
26 patchPhase = ''
27 runHook prePatch
28
29 patchShebangs --build scripts/*
30
31 runHook postPatch
32 '';
33
34 strictDeps = true;
35
36 nativeBuildInputs = [
37 meson
38 ninja
39 pkg-config
40 python3
41 ];
42
43 buildInputs = [
44 eigen
45 gtest
46 zlib
47 ];
48
49 mesonFlags = [
50 "-Dplain_cuda=false"
51 "-Daccelerate=false"
52 "-Dmetal=disabled"
53 "-Dembed=false"
54 ]
55 # in version 31 this option will be required
56 ++ lib.optionals (lib.versionAtLeast version "0.31") [ "-Dnative_cuda=false" ];
57
58 enableParallelBuilding = true;
59
60 meta = {
61 homepage = "https://lczero.org/";
62 description = "Open source neural network based chess engine";
63 longDescription = ''
64 Lc0 is a UCI-compliant chess engine designed to play chess via neural network, specifically those of the LeelaChessZero project.
65 '';
66 maintainers = with lib.maintainers; [ _9glenda ];
67 platforms = lib.platforms.unix;
68 license = lib.licenses.gpl3Plus;
69 broken = stdenv.hostPlatform.isDarwin;
70 };
71
72}