70 lines
1.8 KiB
Bash
70 lines
1.8 KiB
Bash
# Copyright 1999-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=7
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inherit toolchain-funcs
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DESCRIPTION="Free UCI chess engine, claimed to be the strongest in the world"
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HOMEPAGE="https://stockfishchess.org/"
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SRC_URI="https://github.com/official-stockfish/Stockfish/archive/sf_${PV}.tar.gz -> ${P}.tar.gz"
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LICENSE="GPL-3"
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SLOT="0"
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KEYWORDS="~amd64 ~x86"
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IUSE="cpu_flags_arm_v7 cpu_flags_x86_avx2 cpu_flags_x86_popcnt cpu_flags_x86_sse debug
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general-32 general-64 +optimize"
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DEPEND="|| ( app-arch/unzip app-arch/zip )"
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RDEPEND=""
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S="${WORKDIR}/Stockfish-sf_${PV}/src"
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src_prepare() {
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default
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# prevent pre-stripping
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sed -e 's:-strip $(BINDIR)/$(EXE)::' -i Makefile \
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|| die 'failed to disable stripping in the Makefile'
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}
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src_compile() {
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local my_arch
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# generic unoptimized first
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use general-32 && my_arch=general-32
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use general-64 && my_arch=general-64
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# x86
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use x86 && my_arch=x86-32-old
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use cpu_flags_x86_sse && my_arch=x86-32
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# amd64
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use amd64 && my_arch=x86-64
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use cpu_flags_x86_popcnt && my_arch=x86-64-modern
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# both bmi2 and avx2 are part of hni (haswell new instructions)
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use cpu_flags_x86_avx2 && my_arch=x86-64-bmi2
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# other architectures
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use cpu_flags_arm_v7 && my_arch=armv7
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use ppc && my_arch=ppc
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use ppc64 && my_arch=ppc64
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# Skip the "build" target and use "all" instead to avoid the config
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# sanity check (which would throw a fit about our compiler). There's
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# a nice hack in the Makefile that overrides the value of CXX with
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# COMPILER to support Travis CI and we abuse it to make sure that we
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# build with our compiler of choice.
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emake all ARCH="${my_arch}" \
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COMP=$(tc-getCXX) \
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COMPILER=$(tc-getCXX) \
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debug=$(usex debug "yes" "no") \
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optimize=$(usex optimize "yes" "no")
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}
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src_install() {
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dobin "${PN}"
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dodoc ../AUTHORS ../Readme.md
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}
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