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gnu: stockfish: Update to 12.

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* gnu/packages/games.scm (stockfish): Update to 12.
[inputs]: Add fetching of the official neural network file.
[arguments]: Add phase 'copy-net to copy this file and embed it.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
This commit is contained in:
Michael Rohleder 2020-10-06 12:32:57 +02:00 committed by Mathieu Othacehe
parent 73a2fe4ab7
commit b343f5d8fd
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1 changed files with 17 additions and 3 deletions
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gnu/packages/games.scm
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@ -11409,7 +11409,7 @@ (define-public chessx
(define-public stockfish
(package
(name "stockfish")
(version "11")
(version "12")
(source
(origin
(method git-fetch)
@ -11418,8 +11418,15 @@ (define-public stockfish
(commit (string-append "sf_" version))))
(file-name (git-file-name name version))
(sha256
(base32 "12mppipinymj8s1ipq9a7is453vncly49c32ym9wvyklsgyxfzlk"))))
(base32 "0vcymbwp5nf114pp3ax40s21ki5dckda15vmhr77d1mnq3fn0l32"))))
(build-system gnu-build-system)
(inputs
`(("neural-network"
,(origin
(method url-fetch)
(uri "https://tests.stockfishchess.org/api/nn/nn-82215d0fd0df.nnue")
(sha256
(base32 "1r4yqrh4di05syyhl84hqcz84djpbd605b27zhbxwg6zs07ms8c2"))))))
(arguments
`(#:tests? #f
#:make-flags (list "-C" "src"
@ -11435,7 +11442,14 @@ (define-public stockfish
("mips64el-linux" "general-64")
(_ "general-32"))))
#:phases (modify-phases %standard-phases
(delete 'configure))))
(delete 'configure)
;; The official neural network file is needed for building
;; and is embedded in the resulting binary.
(add-after 'unpack 'copy-net
(lambda* (#:key inputs #:allow-other-keys)
(copy-file (assoc-ref inputs "neural-network")
"src/nn-82215d0fd0df.nnue")
#t)))))
(synopsis "Strong chess engine")
(description
"Stockfish is a very strong chess engine. It is much stronger than the