Subject: [PATCH 1/3] gnu: Add lc0.

From: zamfofex <[email-masked]>
Date: Tue, 12 Sep 2023 08:58:11 -0300

* gnu/packages/lc0.scm: New file.
* gnu/packages/local.mk: Register file.
---
 gnu/local.mk         |  2 ++
 gnu/packages/lc0.scm | 71 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 gnu/packages/lc0.scm

diff --git a/gnu/local.mk b/gnu/local.mk
index 4f8637418a..f46a2973ae 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -59,6 +59,7 @@
 # Copyright © 2023 Zheng Junjie <[email-masked]>
 # Copyright © 2023 Ivana Drazovic <[email-masked]>
 # Copyright © 2023 Andy Tai <[email-masked]>
+# Copyright © 2023 zamfofex <[email-masked]>
 #
 # This file is part of GNU Guix.
 #
@@ -375,6 +376,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/kerberos.scm			\
   %D%/packages/kodi.scm				\
   %D%/packages/language.scm			\
+  %D%/packages/lc0.scm				\
   %D%/packages/lean.scm				\
   %D%/packages/lego.scm				\
   %D%/packages/less.scm				\
diff --git a/gnu/packages/lc0.scm b/gnu/packages/lc0.scm
new file mode 100644
index 0000000000..e19436c381
--- /dev/null
+++ b/gnu/packages/lc0.scm
@@ -0,0 +1,71 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2023 zamfofex <[email-masked]>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu packages lc0)
+  #:use-module (guix build-system meson)
+  #:use-module (guix gexp)
+  #:use-module (guix git-download)
+  #:use-module (guix packages)
+  #:use-module ((guix licenses)
+                #:prefix license:)
+  #:use-module (gnu packages)
+  #:use-module (gnu packages algebra)
+  #:use-module (gnu packages c)
+  #:use-module (gnu packages check)
+  #:use-module (gnu packages compression)
+  #:use-module (gnu packages machine-learning)
+  #:use-module (gnu packages pkg-config)
+  #:use-module (gnu packages python))
+
+(define-public lc0
+  (package
+    (name "lc0")
+    (version "0.30.0")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/LeelaChessZero/lc0")
+                    (commit (string-append "v" version))
+                    ;; Only a few source files are in one Git submodules (rather than
+                    ;; there being bundled projects).  These files are in a different
+                    ;; repository just because they are used across multiple
+                    ;; repositories of the Leela Chess Zero project.
+                    (recursive? #t)))
+              (file-name (git-file-name name version))
+              (sha256
+               (base32
+                "1m7k8m8iz4pxv3h9g2j1dkgryi4k9c1bcg3fx5j7ii4ysif63kj3"))))
+    (build-system meson-build-system)
+    (native-search-paths
+     (list (search-path-specification
+            (variable "XDG_DATA_DIRS")
+            (files '("share")))))
+    (inputs (list eigen oneapi-dnnl zlib))
+    (native-inputs (list googletest ispc pkg-config python))
+    (arguments
+     '(#:configure-flags (list "-Ddnnl=true"
+                               (string-append "-Ddnnl_dir="
+                                              (assoc-ref %build-inputs
+                                                         "oneapi-dnnl")))))
+    (synopsis "Chess engine based on neural networks")
+    (description
+     "Leela Chess Zero is a UCI-compliant chess engine designed to play chess
+using neural networks.  This package does not provide a neural network, which
+is necessary to use Leela Chess Zero and should be installed separately.")
+    (home-page "https://lczero.org")
+    (license license:gpl3+)))

base-commit: daeeaa221605726d8853b00261619ba039bd6db7
-- 
2.41.0