games-board/stockfish: bump to EAPI 6, add maintainer-needed

Package-Manager: portage-2.2.28

games-board/stockfish/metadata.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
+  <!-- maintainer-needed -->
   <use>
     <flag name="armv7">Build for armv7; enables PIE</flag>
     <flag name="general-32">Generic unoptimized 32-bits build</flag>

games-board/stockfish/stockfish-6-r2.ebuild

@@ -0,0 +1,62 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+if [[ ${PV} == *9999* ]]; then
+	inherit git-r3
+	EGIT_REPO_URI="git://github.com/official-stockfish/Stockfish.git"
+	KEYWORDS=""
+	S=${WORKDIR}/${P}/src
+else
+	SRC_URI="https://stockfish.s3.amazonaws.com/${P}-src.zip"
+	KEYWORDS="~amd64 ~x86"
+	S=${WORKDIR}/${P}-src/src
+fi
+
+DESCRIPTION="Free UCI chess engine, claimed to be the strongest in the world"
+HOMEPAGE="http://stockfishchess.org/"
+
+LICENSE="GPL-3"
+SLOT="0"
+IUSE="armv7 cpu_flags_x86_avx2 cpu_flags_x86_popcnt cpu_flags_x86_sse debug
+	general-32 general-64 +optimize"
+
+DEPEND="|| ( app-arch/unzip
+	app-arch/zip )"
+RDEPEND=""
+
+src_prepare() {
+	default
+
+	# prevent pre-stripping
+	sed -e 's:-strip $(BINDIR)/$(EXE)::' -i Makefile || die
+}
+
+src_compile() {
+	local my_arch
+	# generic unoptimized first
+	use general-32 && my_arch=general-32
+	use general-64 && my_arch=general-64
+	# x86
+	use x86 && my_arch=x86-32-old
+	use cpu_flags_x86_sse && my_arch=x86-32
+	# amd64
+	use amd64 && my_arch=x86-64
+	use cpu_flags_x86_popcnt && my_arch=x86-64-modern
+	# both bmi2 and avx2 are part of hni (haswell new instructions)
+	use cpu_flags_x86_avx2 && my_arch=x86-64-bmi2
+	# other architectures
+	use armv7 && my_arch=armv7
+	use ppc && my_arch=ppc
+	use ppc64 && my_arch=ppc64
+
+	emake build ARCH=${my_arch} \
+		debug=$(usex debug "yes" "no") \
+		optimize=$(usex optimize "yes" "no")
+}
+
+src_install() {
+	emake PREFIX="${D}/usr" install
+	dodoc ../AUTHORS ../Readme.md
+}