get stockfish working

nix/home/common.nix

@@ -57,6 +57,8 @@
 
  # formatting
  shfmt
+
+ stockfish
  ];
 
  home.stateVersion = "22.05";

nix/nixpkgs/overlays/10-basic.nix

@@ -6,6 +6,8 @@ self: super: rec {
  sha256 = "1zxgy3znw0i6h1lxhmnx001c1pdcyszwqj8f0d0092nmnngdzsrl";
  };
 
+ stockfish = self.callPackage ./packages/stockfish.nix { };
+
  # cargo-workspaces = self.callPackage ./packages/cargo-workspaces.nix { };
 
  # kitty = super.kitty.overrideAttrs (existing: {

nix/nixpkgs/overlays/packages/stockfish.nix

@@ -0,0 +1,68 @@
+{ lib, stdenv, fetchurl, fetchFromGitHub }:
+
+let
+ # The x86-64-modern may need to be refined further in the future
+ # but stdenv.hostPlatform CPU flags do not currently work on Darwin
+ # https://discourse.nixos.org/t/darwin-system-and-stdenv-hostplatform-features/9745
+ archDarwin = if stdenv.isx86_64 then "x86-64-modern" else "apple-silicon";
+ arch = if stdenv.isDarwin then archDarwin else
+ if stdenv.isx86_64 then "x86-64" else
+ if stdenv.isi686 then "x86-32" else
+ if stdenv.isAarch64 then "armv8" else
+ "unknown";
+
+ nnueFile = "nn-5af11540bbfe.nnue";
+ nnue = fetchurl {
+ name = nnueFile;
+ url = "https://tests.stockfishchess.org/api/nn/${nnueFile}";
+ sha256 = "sha256-WvEVQLv+/LVOOMXdAAyrS0ad+nWZodVb5dJyLCCokps=";
+ };
+in
+
+stdenv.mkDerivation rec {
+ pname = "stockfish";
+ version = "16";
+
+ src = fetchFromGitHub {
+ owner = "official-stockfish";
+ repo = "Stockfish";
+ rev = "sf_${version}";
+ sha256 = "sha256-ASy2vIP94lnSKgxixK1GoC84yAysaJpxeyuggV4MrP4=";
+ };
+
+ # This addresses a linker issue with Darwin
+ # https://github.com/NixOS/nixpkgs/issues/19098
+ preBuild = lib.optionalString stdenv.isDarwin ''
+ sed -i.orig '/^\#\#\# 3.*Link Time Optimization/,/^\#\#\# 3/d' Makefile
+ '';
+
+ postUnpack = ''
+ sourceRoot+=/src
+ echo ${nnue}
+ cp "${nnue}" "$sourceRoot/${nnueFile}"
+ '';
+
+ makeFlags = [ "PREFIX=$(out)" "ARCH=${arch}" "CXX=${stdenv.cc.targetPrefix}c++" ];
+ buildFlags = [ "build" ];
+
+ enableParallelBuilding = true;
+
+ meta = with lib; {
+ homepage = "https://stockfishchess.org/";
+ description = "Strong open source chess engine";
+ longDescription = ''
+ Stockfish is one of the strongest chess engines in the world. It is also
+ much stronger than the best human chess grandmasters.
+ '';
+ maintainers = with maintainers; [ luispedro siraben ];
+ platforms = [
+ "x86_64-linux"
+ "i686-linux"
+ "x86_64-darwin"
+ "aarch64-linux"
+ "aarch64-darwin"
+ ];
+ license = licenses.gpl3Only;
+ };
+
+}