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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-fs/zfs-kmod/zfs-kmod-0.6.0_rc14.ebuild,v 1.2 2013/02/03 22:43:08 ryao Exp $

EAPI="4"

AT_M4DIR="config"
AUTOTOOLS_AUTORECONF="1"
AUTOTOOLS_IN_SOURCE_BUILD="1"

inherit bash-completion-r1 flag-o-matic linux-mod toolchain-funcs autotools-utils

if [ ${PV} == "9999" ] ; then
	inherit git-2
	EGIT_REPO_URI="git://github.com/zfsonlinux/zfs.git"
else
	inherit eutils versionator
	MY_PV=$(replace_version_separator 3 '-')
	SRC_URI="https://github.com/zfsonlinux/zfs/archive/zfs-${MY_PV}.tar.gz"
	S="${WORKDIR}/zfs-zfs-${MY_PV}"
	KEYWORDS="~amd64"
fi

DESCRIPTION="Linux ZFS kernel module for sys-fs/zfs"
HOMEPAGE="http://zfsonlinux.org/"

LICENSE="CDDL"
SLOT="0"
IUSE="custom-cflags debug +rootfs"
RESTRICT="test"

DEPEND="
	=sys-kernel/spl-${PV}*
"

RDEPEND="${DEPEND}
	!sys-fs/zfs-fuse
"

pkg_setup() {
	CONFIG_CHECK="!DEBUG_LOCK_ALLOC
		BLK_DEV_LOOP
		EFI_PARTITION
		IOSCHED_NOOP
		MODULES
		!PAX_KERNEXEC_PLUGIN_METHOD_OR
		ZLIB_DEFLATE
		ZLIB_INFLATE
	"

	use rootfs && \
		CONFIG_CHECK="${CONFIG_CHECK} BLK_DEV_INITRD
			DEVTMPFS"

	kernel_is ge 2 6 26 || die "Linux 2.6.26 or newer required"

	[ ${PV} != "9999" ] && \
		{ kernel_is le 3 8 || die "Linux 3.8 is the latest supported version."; }

	check_extra_config
}

src_prepare() {
	autotools-utils_src_prepare
}

src_configure() {
	use custom-cflags || strip-flags
	filter-ldflags -Wl,*

	set_arch_to_kernel
	local myeconfargs=(
		--bindir="${EPREFIX}/bin"
		--sbindir="${EPREFIX}/sbin"
		--with-config=kernel
		--with-linux="${KV_DIR}"
		--with-linux-obj="${KV_OUT_DIR}"
		$(use_enable debug)
	)
	autotools-utils_src_configure
}

src_install() {
	autotools-utils_src_install
}

pkg_postinst() {
	linux-mod_pkg_postinst

	if use x86 || use arm
	then
		ewarn "32-bit kernels will likely require increasing vmalloc to"
		ewarn "at least 256M and decreasing zfs_arc_max to some value less than that."
	fi

	ewarn "This version of ZFSOnLinux introduces support for features flags."
	ewarn "If you upgrade your pools to make use of feature flags, you will lose"
	ewarn "the ability to import them using older versions of ZFSOnLinux."
	ewarn "Any new pools will be created with feature flag support and will"
	ewarn "not be compatible with older versions of ZFSOnLinux. To create a new"
	ewarn "pool that is backward compatible, use zpool create -o version=28 ..."
}