games-board/stockfish/stockfish-16.1.ebuild

   1 # Copyright 1999-2024 Gentoo Authors
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 EAPI=7
   5
   6 inherit toolchain-funcs
   7
   8 DESCRIPTION="Free UCI chess engine, claimed to be the strongest in the world"
   9 HOMEPAGE="https://stockfishchess.org/"
  10
  11 NNUE_FILES="nn-b1a57edbea57.nnue nn-baff1ede1f90.nnue"
  12
  13 SRC_URI="https://github.com/official-stockfish/Stockfish/archive/sf_${PV}.tar.gz -> ${P}.tar.gz"
  14
  15 for i in $NNUE_FILES; do
  16         SRC_URI+=" https://tests.stockfishchess.org/api/nn/${i} -> ${P}-${i}"
  17 done
  18
  19 LICENSE="GPL-3"
  20 SLOT="0"
  21 KEYWORDS="~amd64 ~arm64 ~loong ~riscv ~x86"
  22 IUSE="cpu_flags_arm_v7 cpu_flags_x86_avx2 cpu_flags_x86_popcnt cpu_flags_x86_sse cpu_flags_x86_avx512f
  23         cpu_flags_x86_avx512dq debug general-32 general-64 +optimize"
  24
  25 DEPEND="|| ( app-arch/unzip app-arch/zip )"
  26
  27 S="${WORKDIR}/Stockfish-sf_${PV}/src"
  28
  29 pkg_setup() {
  30         if ! tc-is-clang && ! tc-is-gcc; then
  31                 die "Unsupported compiler: $(tc-getCC)"
  32         fi
  33 }
  34
  35 src_prepare() {
  36         default
  37
  38         # remove config sanity check that doesn't like our COMPILER settings
  39         sed -i -e 's/ config-sanity//g' Makefile || die
  40
  41         for i in $NNUE_FILES; do
  42                 cp "${DISTDIR}"/${P}-${i} ${i} || die "copying the nnue file failed"
  43         done
  44
  45         # prevent pre-stripping
  46         sed -e 's:-strip $(BINDIR)/$(EXE)::' -i Makefile \
  47                 || die 'failed to disable stripping in the Makefile'
  48
  49         # Makefile is a bit optimistic
  50         sed -e 's:-flto=full:-flto:g' -i Makefile || die
  51 }
  52
  53 src_compile() {
  54         local my_arch
  55
  56         # generic unoptimized first
  57         use general-32 && my_arch=general-32
  58         use general-64 && my_arch=general-64
  59
  60         # x86
  61         use x86 && my_arch=x86-32-old
  62         use cpu_flags_x86_sse && my_arch=x86-32
  63
  64         # amd64
  65         use amd64 && my_arch=x86-64
  66         use cpu_flags_x86_popcnt && my_arch=x86-64-modern
  67
  68         # both bmi2 and avx2 are part of hni (haswell new instructions)
  69         use cpu_flags_x86_avx2 && my_arch=x86-64-bmi2
  70
  71         # avx512
  72         # we currently can't express  'avx512vnni' 'avx512dq' 'avx512f' 'avx512bw' 'avx512vl'
  73         # so only enable basic support
  74         use cpu_flags_x86_avx512f && use cpu_flags_x86_avx512dq && my_arch=x86-64-avx512
  75
  76         # other architectures
  77         use cpu_flags_arm_v7 && my_arch=armv7
  78         use ppc && my_arch=ppc
  79         use ppc64 && my_arch=ppc64
  80
  81         # Bug 919781: COMP is a fixed string like clang/gcc to set tools for PGO
  82         local comp
  83         tc-is-gcc && comp="gcc"
  84         tc-is-clang && comp="clang"
  85
  86         # There's a nice hack in the Makefile that overrides the value of CXX with
  87         # COMPILER to support Travis CI and we abuse it to make sure that we
  88         # build with our compiler of choice.
  89         emake profile-build ARCH="${my_arch}" \
  90                 COMP="${comp}" \
  91                 COMPILER="$(tc-getCXX)" \
  92                 debug=$(usex debug "yes" "no") \
  93                 optimize=$(usex optimize "yes" "no")
  94 }
  95
  96 src_install() {
  97         dobin "${PN}"
  98         dodoc ../AUTHORS ../README.md
  99 }