# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/games-board/crafty/crafty-20.13.ebuild,v 1.4 2008/04/11 15:41:11 wolf31o2 Exp $

inherit flag-o-matic toolchain-funcs games

DESCRIPTION="Bob Hyatt's strong chess engine"
HOMEPAGE="ftp://ftp.cis.uab.edu/pub/hyatt/"
SRC_URI="ftp://ftp.cis.uab.edu/pub/hyatt/source/${P}.zip"

LICENSE="crafty"
SLOT="0"
KEYWORDS="~amd64 ppc x86"
IUSE="no-opts"

RDEPEND=""
DEPEND="${RDEPEND}
	app-arch/unzip"

src_unpack() {
	unpack ${A}
	cd "${S}"
	sed -i \
		-e '/-o crafty/s/CC/CXX/' Makefile \
		|| die "sed failed"
	sed -i \
		-e "s:\"crafty.hlp\":\"${GAMES_DATADIR}/${PN}/crafty.hlp\":" option.c \
		|| die "sed failed"
}

src_compile() {
	local makeopts="target=LINUX"

	if ! use no-opts ; then
		if [[ $(tc-getCC) = icc ]] ; then
			makeopts="${makeopts} CC=icc CXX=gcc asm=X86.o"
			append-flags -D_REENTRANT -tpp6 \
				-DCOMPACT_ATTACKS -DUSE_ATTACK_FUNCTIONS \
				-DUSE_ASSEMBLY_A -DUSE_ASSEMBLY_B -DFAST \
				-DSMP -DCPUS=4 -DCLONE -DDGT
			append-flags -O2 -fno-alias -fforce-mem \
				-fomit-frame-pointer -fno-gcse -mpreferred-stack-boundary=2
		else
			if [[ "${CHOST}" == "i686-pc-linux-gnu" ]] \
			|| [[ "${CHOST}" == "i586-pc-linux-gnu" ]] ; then
				append-flags -DCOMPACT_ATTACKS -DUSE_ATTACK_FUNCTIONS \
					-DUSE_ASSEMBLY_A -DUSE_ASSEMBLY_B \
					-DFAST -DSMP -DCPUS=4 -DCLONE -DDGT
				append-flags -fforce-mem -fno-gcse \
					-fomit-frame-pointer -mpreferred-stack-boundary=2
				makeopts="${makeopts} CC=gcc CXX=g++ asm=X86.o"
			else
				: # everything else :)
			fi
		fi
	fi
	append-flags -DPOSIX
	emake ${makeopts} crafty-make LDFLAGS="-lpthread" || die "build failed"
}

src_install() {
	dogamesbin crafty || die "dogamesbin failed"
	insinto "${GAMES_DATADIR}/${PN}"
	doins crafty.hlp || die "doins failed"
	prepgamesdirs
}

pkg_postinst() {
	games_pkg_postinst
	elog
	elog "Note: No books or tablebases have been installed. If you want them, just"
	elog "      download them from ${HOMEPAGE}."
	elog "      You will find documentation there too. In most cases you take now "
	elog "      your xboard compatible application, (xboard, eboard, knights) and "
	elog "      just play chess against computer opponent. Have fun."
	elog
}