# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/app-emulation/qemu/qemu-0.14.0.ebuild,v 1.3 2011/02/20 22:07:37 zmedico Exp $

EAPI="2"

if [[ ${PV} = *9999* ]]; then
	EGIT_REPO_URI="git://git.qemu.org/qemu.git"
	GIT_ECLASS="git"
fi

inherit eutils flag-o-matic ${GIT_ECLASS} linux-info toolchain-funcs

if [[ ${PV} = *9999* ]]; then
	SRC_URI=""
	KEYWORDS=""
else
	SRC_URI="http://download.savannah.gnu.org/releases/qemu/${P}.tar.gz"
	KEYWORDS="~amd64 ~ppc ~ppc64 ~x86"
fi

DESCRIPTION="QEMU emulator and ABI wrapper"
HOMEPAGE="http://www.qemu.org"

LICENSE="GPL-2"
SLOT="0"
# xen is disabled until the deps are fixed
IUSE="+aio alsa bluetooth brltty curl esd fdt hardened jpeg ncurses \
png pulseaudio qemu-ifup sasl sdl ssl static vde"

COMMON_TARGETS="i386 x86_64 arm cris m68k microblaze mips mipsel ppc ppc64 sh4 sh4eb sparc sparc64"
IUSE_SOFTMMU_TARGETS="${COMMON_TARGETS} mips64 mips64el ppcemb"
IUSE_USER_TARGETS="${COMMON_TARGETS} alpha armeb ppc64abi32 sparc32plus"

for target in ${IUSE_SOFTMMU_TARGETS}; do
	IUSE="${IUSE} +qemu_softmmu_targets_${target}"
done

for target in ${IUSE_USER_TARGETS}; do
	IUSE="${IUSE} +qemu_user_targets_${target}"
done

RESTRICT="test"

RDEPEND="
	!app-emulation/qemu-kvm
	!app-emulation/qemu-softmmu
	!app-emulation/qemu-user
	!app-emulation/qemu-kvm-spice
	sys-apps/pciutils
	>=sys-apps/util-linux-2.16.0
	sys-libs/zlib
	aio? ( dev-libs/libaio )
	alsa? ( >=media-libs/alsa-lib-1.0.13 )
	bluetooth? ( net-wireless/bluez )
	brltty? ( app-accessibility/brltty )
	curl? ( net-misc/curl )
	esd? ( media-sound/esound )
	fdt? ( >=sys-apps/dtc-1.2.0 )
	jpeg? ( virtual/jpeg )
	ncurses? ( sys-libs/ncurses )
	png? ( media-libs/libpng )
	pulseaudio? ( media-sound/pulseaudio )
	qemu-ifup? ( sys-apps/iproute2 net-misc/bridge-utils )
	sasl? ( dev-libs/cyrus-sasl )
	sdl? ( >=media-libs/libsdl-1.2.11[X] )
	ssl? ( net-libs/gnutls )
	vde? ( net-misc/vde )
"

DEPEND="${RDEPEND}
	app-text/texi2html
	>=sys-kernel/linux-headers-2.6.29
	ssl? ( dev-util/pkgconfig )
"

pkg_setup() {
	use qemu_softmmu_targets_x86_64 || ewarn "You disabled default target QEMU_SOFTMMU_TARGETS=x86_64"
}

src_prepare() {
	# prevent docs to get automatically installed
	sed -i '/$(DESTDIR)$(docdir)/d' Makefile || die
	# Alter target makefiles to accept CFLAGS set via flag-o
	sed -i 's/^\(C\|OP_C\|HELPER_C\)FLAGS=/\1FLAGS+=/' \
		Makefile Makefile.target || die
	# append CFLAGS while linking
	sed -i 's/$(LDFLAGS)/$(QEMU_CFLAGS) $(CFLAGS) $(LDFLAGS)/' rules.mak || die
}

src_configure() {
	local conf_opts audio_opts user_targets

	for target in ${IUSE_SOFTMMU_TARGETS} ; do
		use "qemu_softmmu_targets_${target}" && \
		softmmu_targets="${softmmu_targets} ${target}-softmmu"
	done

	for target in ${IUSE_USER_TARGETS} ; do
		use "qemu_user_targets_${target}" && \
		user_targets="${user_targets} ${target}-linux-user"
	done

	if [ -z "${softmmu_targets}" ]; then
		conf_opts="${conf_opts} --disable-system"
	else
		einfo "Building the following softmmu targets: ${softmmu_targets}"
	fi

	if [ ! -z "${user_targets}" ]; then
		einfo "Building the following user targets: ${user_targets}"
		conf_opts="${conf_opts} --enable-linux-user"
	else
		conf_opts="${conf_opts} --disable-linux-user"
	fi

	# Fix QA issues. QEMU needs executable heaps and we need to mark it as such
	conf_opts="${conf_opts} --extra-ldflags=-Wl,-z,execheap"

	# Add support for static builds
	use static && conf_opts="${conf_opts} --static"

	# Fix the $(prefix)/etc issue
	conf_opts="${conf_opts} --sysconfdir=/etc"

	#config options
	conf_opts="${conf_opts} $(use_enable aio linux-aio)"
	conf_opts="${conf_opts} $(use_enable bluetooth bluez)"
	conf_opts="${conf_opts} $(use_enable brltty brlapi)"
	conf_opts="${conf_opts} $(use_enable curl)"
	conf_opts="${conf_opts} $(use_enable fdt)"
	conf_opts="${conf_opts} $(use_enable hardened user-pie)"
	conf_opts="${conf_opts} $(use_enable jpeg vnc-jpeg)"
	conf_opts="${conf_opts} $(use_enable ncurses curses)"
	conf_opts="${conf_opts} $(use_enable png vnc-png)"
	conf_opts="${conf_opts} $(use_enable sasl vnc-sasl)"
	conf_opts="${conf_opts} $(use_enable sdl)"
	conf_opts="${conf_opts} $(use_enable ssl vnc-tls)"
	conf_opts="${conf_opts} $(use_enable vde)"
	conf_opts="${conf_opts} --disable-xen"
	conf_opts="${conf_opts} --disable-darwin-user --disable-bsd-user"

	# audio options
	audio_opts="oss"
	use alsa && audio_opts="alsa ${audio_opts}"
	use esd && audio_opts="esd ${audio_opts}"
	use pulseaudio && audio_opts="pa ${audio_opts}"
	use sdl && audio_opts="sdl ${audio_opts}"
	./configure --prefix=/usr \
		--disable-strip \
		--disable-werror \
		--disable-kvm \
		--enable-nptl \
		--enable-uuid \
		${conf_opts} \
		--audio-drv-list="${audio_opts}" \
		--target-list="${softmmu_targets} ${user_targets}" \
		--cc="$(tc-getCC)" \
		--host-cc="$(tc-getBUILD_CC)" \
		|| die "configure failed"

		# this is for qemu upstream's threaded support which is
		# in development and broken
		# the kvm project has its own support for threaded IO
		# which is always on and works
		# --enable-io-thread \
}

src_compile() {
	# Restricting parallel build until we get a patch to fix this
	emake || die
}

src_install() {
	emake DESTDIR="${D}" install || die "make install failed"

	if [ ! -z "${softmmu_targets}" ]; then
		exeinto /etc/qemu
		use qemu-ifup && { doexe \
			"${FILESDIR}/qemu-ifup" \
			"${FILESDIR}/qemu-ifdown" \
			|| die "qemu interface scripts missing" ; }
	fi

	dodoc Changelog MAINTAINERS TODO pci-ids.txt || die
	newdoc pc-bios/README README.pc-bios || die
	dohtml qemu-doc.html qemu-tech.html || die
}

pkg_postinst() {
	use qemu-ifup || return
	elog "You will need the Universal TUN/TAP driver compiled into your"
	elog "kernel or loaded as a module to use the virtual network device"
	elog "if using -net tap.  You will also need support for 802.1d"
	elog "Ethernet Bridging and a configured bridge if using the provided"
	elog "qemu-ifup script from /etc/qemu."
	echo
}