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# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$

EAPI=5

PYTHON_COMPAT=( python{2_7,3_{4,5}} )

inherit eutils toolchain-funcs python-any-r1

#BACKPORTS=1

# SeaBIOS maintainers sometimes don't release stable tarballs or stable
# binaries to generate the stable tarball the following is necessary:
# git clone git://git.seabios.org/seabios.git && cd seabios
# git archive --output seabios-${PV}.tar.gz --prefix seabios-${PV}/ rel-${PV}

if [[ ${PV} = *9999* || ! -z "${EGIT_COMMIT}" ]]; then
	EGIT_REPO_URI="git://git.seabios.org/seabios.git"
	inherit git-2
else
	KEYWORDS="amd64 ~ppc ~ppc64 x86 ~amd64-fbsd ~x86-fbsd"
	SRC_URI="!binary? ( http://code.coreboot.org/p/seabios/downloads/get/${P}.tar.gz )
		binary? ( http://code.coreboot.org/p/seabios/downloads/get/bios.bin-${PV}.gz )
		${BACKPORTS:+https://dev.gentoo.org/~cardoe/distfiles/${P}-${BACKPORTS}.tar.xz}"
fi

DESCRIPTION="Open Source implementation of a 16-bit x86 BIOS"
HOMEPAGE="http://www.seabios.org"

LICENSE="LGPL-3 GPL-3"
SLOT="0"
IUSE="+binary"

REQUIRED_USE="ppc? ( binary )
	ppc64? ( binary )"

DEPEND="
	!binary? (
		>=sys-power/iasl-20060912
		${PYTHON_DEPS}
	)"
RDEPEND=""

pkg_pretend() {
	if ! use binary; then
		ewarn "You have decided to compile your own SeaBIOS. This is not"
		ewarn "supported by upstream unless you use their recommended"
		ewarn "toolchain (which you are not)."
		elog
		ewarn "If you are intending to use this build with QEMU, realize"
		ewarn "you will not receive any support if you have compiled your"
		ewarn "own SeaBIOS. Virtual machines subtly fail based on changes"
		ewarn "in SeaBIOS."
	fi
}

pkg_setup() {
	use binary || python-any-r1_pkg_setup
}

src_unpack() {
	default

	# This simplifies the logic between binary & source builds.
	mkdir -p "${S}"
}

src_prepare() {
	use binary && return

	if [[ -z "${EGIT_COMMIT}" ]]; then
		sed -e "s/VERSION=.*/VERSION=${PV}/" \
			-i Makefile || die
	else
		sed -e "s/VERSION=.*/VERSION=${PV}_pre${EGIT_COMMIT}/" \
			-i Makefile || die
	fi

	epatch_user
}

src_configure() {
	use binary || tc-ld-disable-gold #438058
}

src_compile() {
	if ! use binary ; then
		LANG=C emake \
			CC="$(tc-getCC)" \
			LD="$(tc-getLD)" \
			AR="$(tc-getAR)" \
			OBJCOPY="$(tc-getOBJCOPY)" \
			RANLIB="$(tc-getRANLIB)" \
			OBJDUMP="$(tc-getOBJDUMP)" \
			HOST_CC="$(tc-getBUILD_CC)" \
			out/bios.bin
	fi
}

src_install() {
	insinto /usr/share/seabios
	if ! use binary ; then
		doins out/bios.bin
	else
		newins ../bios.bin-${PV} bios.bin
	fi
}