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# Maintainer: niklas.fiekas at backscattering dot de
# Contributor: mark.blakeney at bullet-systems dot net
# Contributor: Tod Jackson <tod.jackson@gmail.com>
# Contributor: Özgür Sarıer <echo b3pndXJzYXJpZXIxMDExNjAxMTE1QGdtYWlsLmNvbQo= | base64 -d>
# Contributor: user6553591 <Message on Reddit>
# Contributor: P. Badredin <p dot badredin at gmail dot com>
# Contributor: Justin Blanchard <UncombedCoconut at gmail dot com>
# Contributor: Auguste Pop < auguste [at] gmail [dot] com >
# Contributor: SandaruKasa <echo c2FuZGFydWthc2ErYXVyQHlhLnJ1Cg== | base64 -d>
# Contributor: bagasdotme
# Contributor: HurricanePootis
pkgname=stockfish
pkgver=17
pkgrel=1
epoch=1
pkgdesc="A strong UCI chess engine"
arch=('x86_64' 'i686' 'armv7h' 'aarch64')
url="https://stockfishchess.org/"
license=('GPL-3.0')
depends=('glibc' 'gcc-libs')
# Check EvalFileDefaultName{Big,Small} in src/evaluate.h and change accordingly
_net_name_big=('1111cefa1111')
_net_name_small=('37f18f62d772')
source=("$pkgname-$pkgver.zip::https://github.com/official-stockfish/Stockfish/archive/sf_$pkgver.zip"
"https://tests.stockfishchess.org/api/nn/nn-${_net_name_big}.nnue"
"https://tests.stockfishchess.org/api/nn/nn-${_net_name_small}.nnue")
sha512sums=('8d3a52ad3aa9881b98f76d556dca6212ce3bcf6cabdb97e1810cdc0068dc9eb51f3a13a9f84ef721049927f308c86e9c8aea6b5de720a19816fd4df87d112e41'
'0814a77442d14f9eee02b1d45195cc8c9ed58e91d10ac22be56f562835baedc77094b442d23f2e088779e58d798184eabc8dfc919558e1ede552cde35d448025'
'bf4d01f8cbff94dbff484636dd0351cd66f37eeaea7b7dbe16a3bfe231ae78cfabdeed040b789b64049c6063ef0dca21e4a4f332b99e49a52993e8595e372839')
prepare() {
ln -sf "${srcdir}/nn-${_net_name_big}.nnue" "Stockfish-sf_${pkgver}/src"
ln -sf "${srcdir}/nn-${_net_name_small}.nnue" "Stockfish-sf_${pkgver}/src"
}
build() {
cd "Stockfish-sf_${pkgver}/src"
if [[ "$CARCH" == "armv7h" ]]; then
_arch=armv7
elif [[ "$CARCH" == "aarch64" ]]; then
if grep -wq asimddp /proc/cpuinfo; then
_arch=armv8-dotprod
else
_arch=armv8
fi
elif [[ "$CARCH" == "i686" ]]; then
_arch=x86-32
elif grep -wq avx512dq /proc/cpuinfo && grep -wq avx512vl /proc/cpuinfo && grep -wq avx512_vnni /proc/cpuinfo; then
# 256 bit operands are faster on most hardware
_arch=x86-64-vnni256
elif grep -wq avx512f /proc/cpuinfo && grep -wq avx512bw /proc/cpuinfo; then
_arch=x86-64-avx512
elif grep -wq bmi2 /proc/cpuinfo; then
if grep -wq GenuineIntel /proc/cpuinfo; then
_arch=x86-64-bmi2
elif grep -wq AuthenticAMD /proc/cpuinfo && [[ "$(grep --max-count=1 'cpu family' /proc/cpuinfo | sed -e 's/^.*: //')" -ge 25 ]]; then
_arch=x86-64-bmi2
else
# On AMD, bmi2 is emulated before Zen 3, so that using it is a slowdown
_arch=x86-64-avx2
fi
elif grep -wq avx2 /proc/cpuinfo; then
_arch=x86-64-avx2
elif grep -wq sse4_1 /proc/cpuinfo && grep -wq popcnt /proc/cpuinfo; then
_arch=x86-64-sse41-popcnt
elif grep -wq ssse3 /proc/cpuinfo; then
_arch=x86-64-ssse3
elif grep -wq pni /proc/cpuinfo && grep -wq popcnt /proc/cpuinfo; then
_arch=x86-64-sse3-popcnt
else
_arch=x86-64
fi
make ARCH="$_arch" profile-build
}
package() {
cd "Stockfish-sf_${pkgver}/src"
make PREFIX="$pkgdir/usr" install
}
# vim:set ts=2 sw=2 et:
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