sys-fs/udev/udev-170.ebuild - mirrors/cros/chromiumos/overlays/chromiumos-overlay - Git at Google

 # Copyright 1999-2011 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
 # $Header: /var/cvsroot/gentoo-x86/sys-fs/udev/udev-168-r2.ebuild,v 1.1 2011/05/14 14:00:34 zzam Exp $

 EAPI="1"

 inherit eutils flag-o-matic multilib toolchain-funcs linux-info autotools

 # I jumped ahead of Gentoo
 #PATCHSET=${P}-gentoo-patchset-v1
 scriptversion=v3
 scriptname=udev-gentoo-scripts-${scriptversion}

 if [[ ${PV} == "9999" ]]; then
 	SRC_URI="mirror://gentoo/${scriptname}.tar.bz2"
 	EGIT_REPO_URI="git://git.kernel.org/pub/scm/linux/hotplug/udev.git"
 	EGIT_BRANCH="master"
 	inherit git autotools
 else
 	# please update testsys-tarball whenever udev-xxx/test/sys/ is changed
 	SRC_URI="mirror://kernel/linux/utils/kernel/hotplug/${P}.tar.bz2
 			 test? ( mirror://gentoo/${PN}-151-testsys.tar.bz2 )
 			 mirror://gentoo/${scriptname}.tar.bz2"
 	[[ -n "${PATCHSET}" ]] && SRC_URI="${SRC_URI} mirror://gentoo/${PATCHSET}.tar.bz2"
 fi
 DESCRIPTION="Linux dynamic and persistent device naming support (aka userspace devfs)"
 HOMEPAGE="http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html"

 LICENSE="GPL-2"
 SLOT="0"
 KEYWORDS="~alpha amd64 arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc x86"
 IUSE="selinux test rule_generator hwdb acl gudev introspection
 	keymap floppy edd action_modeswitch"

 COMMON_DEPEND="selinux? ( sys-libs/libselinux )
 	acl? ( sys-apps/acl dev-libs/glib:2 )
 	gudev? ( dev-libs/glib:2 )
 	introspection? ( dev-libs/gobject-introspection )
 	action_modeswitch? ( virtual/libusb:0 )
 	>=sys-apps/util-linux-2.16
 	>=sys-libs/glibc-2.9"

 DEPEND="${COMMON_DEPEND}
 	keymap? ( dev-util/gperf )
 	virtual/os-headers
 	!<sys-kernel/linux-headers-2.6.29
 	test? ( app-text/tree )"

 RDEPEND="${COMMON_DEPEND}
 	hwdb?
 	(
 		>=sys-apps/usbutils-0.82
 		sys-apps/pciutils
 	)
 	!sys-apps/coldplug
 	!<sys-fs/lvm2-2.02.45
 	!sys-fs/device-mapper
 	>=sys-apps/baselayout-1.12.5"

 if [[ ${PV} == "9999" ]]; then
 	# for documentation processing with xsltproc
 	DEPEND="${DEPEND}
 		app-text/docbook-xsl-stylesheets
 		app-text/docbook-xml-dtd
 		dev-util/gtk-doc"
 fi

 # required kernel options
 CONFIG_CHECK="~INOTIFY_USER ~SIGNALFD ~!SYSFS_DEPRECATED ~!SYSFS_DEPRECATED_V2
 	~!IDE"

 udev_check_KV() {
 	local ok=0
 	if [[ ${KV_MAJOR} == 2 && ${KV_MINOR} == 6 ]]
 	then
 		if kernel_is -ge 2 6 ${KV_PATCH_reliable} ; then
 			ok=2
 		elif kernel_is -ge 2 6 ${KV_PATCH_min} ; then
 			ok=1
 		fi
 	fi
 	return $ok
 }

 pkg_setup() {
 	linux-info_pkg_setup

 	# udev requires signalfd introduced in kernel 2.6.25,
 	# but a glibc compiled against >=linux-headers-2.6.27 uses the
 	# new signalfd syscall introduced in kernel 2.6.27 without falling back
 	# to the old one. So we just depend on 2.6.27 here, see Bug #281312.
 	KV_PATCH_min=25
 	KV_PATCH_reliable=31
 	KV_min=2.6.${KV_PATCH_min}
 	KV_reliable=2.6.${KV_PATCH_reliable}

 	# always print kernel version requirements
 	ewarn
 	ewarn "${P} does not support Linux kernel before version ${KV_min}!"
 	if [[ ${KV_PATCH_min} != ${KV_PATCH_reliable} ]]; then
 		ewarn "For a reliable udev, use at least kernel ${KV_reliable}"
 	fi

 	echo
 	# We don't care about the secondary revision of the kernel.
 	# 2.6.30.4 -> 2.6.30 is all we check
 	udev_check_KV
 	case "$?" in
 		2)	einfo "Your kernel version (${KV_FULL}) is new enough to run ${P} reliably." ;;
 		1)	ewarn "Your kernel version (${KV_FULL}) is new enough to run ${P},"
 			ewarn "but it may be unreliable in some cases."
 			ebeep ;;
 		0)	eerror "Your kernel version (${KV_FULL}) is too old to run ${P}"
 			ebeep ;;
 	esac
 	echo

 	KV_FULL_SRC=${KV_FULL}
 	get_running_version
 	udev_check_KV
 	if [[ "$?" = "0" ]]; then
 		eerror
 		eerror "udev cannot be restarted after emerging,"
 		eerror "as your running kernel version (${KV_FULL}) is too old."
 		eerror "You really need to use a newer kernel after a reboot!"
 		NO_RESTART=1
 		ebeep
 	fi
 }

 src_unpack() {
 	unpack ${A}
 	if [[ ${PV} == "9999" ]] ; then
 		git_src_unpack
 	else
 		if use test; then
 			mv "${WORKDIR}"/test/sys "${S}"/test/
 		fi
 	fi

 	#cd "${WORKDIR}/${scriptname}"

 	cd "${S}"

 	# patches go here...
 	# run-not-writable taken from the 168 gentoo patchset
 	epatch "${FILESDIR}"/udev-170-run-not-writable.patch
 	# usb.ids location can't come from pkgconfig (chromiumos:15595)
 	epatch "${FILESDIR}"/udev-170-usb-ids-location.patch

 	# backport some patches
 	if [[ -n "${PATCHSET}" ]]; then
 		EPATCH_SOURCE="${WORKDIR}/${PATCHSET}" EPATCH_SUFFIX="patch" \
 			  EPATCH_FORCE="yes" epatch
 	fi

 	# change rules back to group uucp instead of dialout for now
 	sed -e 's/GROUP="dialout"/GROUP="uucp"/' \
 		-i rules/{rules.d,arch}/*.rules \
 	|| die "failed to change group dialout to uucp"

 	if [[ ${PV} != 9999 ]]; then
 		# Make sure there is no sudden changes to upstream rules file
 		# (more for my own needs than anything else ...)
 		MD5=$(md5sum < "${S}/rules/rules.d/50-udev-default.rules")
 		MD5=${MD5/  -/}
 		if [[ ${MD5} != a9954d57e97aa0ad2e0ed53899d9559a ]]
 		then
 			echo
 			eerror "50-udev-default.rules has been updated, please validate!"
 			eerror "md5sum: ${MD5}"
 			die "50-udev-default.rules has been updated, please validate!"
 		fi
 	fi

 	if [[ ${PV} == 9999 ]]; then
 		gtkdocize --copy || die "gtkdocize failed"
 	fi
 	eautoreconf
 }

 src_compile() {
 	filter-flags -fprefetch-loop-arrays

 	econf \
 		--prefix=/usr \
 		--sysconfdir=/etc \
 		--sbindir=/sbin \
 		--libdir=/usr/$(get_libdir) \
 		--with-rootlibdir=/$(get_libdir) \
 		--libexecdir=/lib/udev \
 		--enable-logging \
 		--enable-static \
 		$(use_with selinux) \
 		$(use_enable debug) \
 		$(use_enable rule_generator) \
 		$(use_enable hwdb) \
 		--with-pci-ids-path="/usr/share/misc/pci.ids" \
 		--with-usb-ids-path="/usr/share/misc/usb.ids" \
 		$(use_enable acl udev_acl) \
 		$(use_enable gudev) \
 		$(use_enable introspection) \
 		$(use_enable keymap) \
 		$(use_enable floppy) \
 		$(use_enable edd) \
 		$(use_enable action_modeswitch) \
 		--without-systemdsystemunitdir

 	emake || die "compiling udev failed"
 }

 src_install() {
 	emake -C "${WORKDIR}/${scriptname}" \
 		DESTDIR="${D}" LIBDIR="$(get_libdir)" \
 		KV_min="${KV_min}" KV_reliable="${KV_reliable}" \
 		install || die "make install failed"

 	into /
 	emake DESTDIR="${D}" install || die "make install failed"

 	exeinto /lib/udev
 	keepdir /lib/udev/state
 	keepdir /lib/udev/devices

 	# create symlinks for these utilities to /sbin
 	# where multipath-tools expect them to be (Bug #168588)
 	dosym "../lib/udev/scsi_id" /sbin/scsi_id

 	# Add gentoo stuff to udev.conf
 	echo "# If you need to change mount-options, do it in /etc/fstab" \
 	>> "${D}"/etc/udev/udev.conf

 	# let the dir exist at least
 	keepdir /etc/udev/rules.d

 	# Now installing rules
 	cd "${S}"/rules
 	insinto /lib/udev/rules.d/

 	# support older kernels
 	doins misc/30-kernel-compat.rules

 	# Adding arch specific rules
 	if [[ -f arch/40-${ARCH}.rules ]]
 	then
 		doins "arch/40-${ARCH}.rules"
 	fi
 	cd "${S}"

 	insinto /etc/modprobe.d
 	newins "${FILESDIR}"/blacklist-146 blacklist.conf
 	newins "${FILESDIR}"/pnp-aliases pnp-aliases.conf

 	# documentation
 	dodoc ChangeLog README TODO || die "failed installing docs"

 	# keep doc in just one directory, Bug #281137
 	rm -rf "${D}/usr/share/doc/${PN}"
 	if use keymap; then
 		dodoc extras/keymap/README.keymap.txt || die "failed installing docs"
 	fi
 }

 pkg_preinst() {
 	# moving old files to support newer modprobe, 12 May 2009
 	local f dir=${ROOT}/etc/modprobe.d/
 	for f in pnp-aliases blacklist; do
 		if [[ -f $dir/$f && ! -f $dir/$f.conf ]]
 		then
 			elog "Moving $dir/$f to $f.conf"
 			mv -f "$dir/$f" "$dir/$f.conf"
 		fi
 	done

 	if [[ -d ${ROOT}/lib/udev-state ]]
 	then
 		mv -f "${ROOT}"/lib/udev-state/* "${D}"/lib/udev/state/
 		rm -r "${ROOT}"/lib/udev-state
 	fi

 	if [[ -f ${ROOT}/etc/udev/udev.config &&
 		 ! -f ${ROOT}/etc/udev/udev.rules ]]
 	then
 		mv -f "${ROOT}"/etc/udev/udev.config "${ROOT}"/etc/udev/udev.rules
 	fi

 	# delete the old udev.hotplug symlink if it is present
 	if [[ -h ${ROOT}/etc/hotplug.d/default/udev.hotplug ]]
 	then
 		rm -f "${ROOT}"/etc/hotplug.d/default/udev.hotplug
 	fi

 	# delete the old wait_for_sysfs.hotplug symlink if it is present
 	if [[ -h ${ROOT}/etc/hotplug.d/default/05-wait_for_sysfs.hotplug ]]
 	then
 		rm -f "${ROOT}"/etc/hotplug.d/default/05-wait_for_sysfs.hotplug
 	fi

 	# delete the old wait_for_sysfs.hotplug symlink if it is present
 	if [[ -h ${ROOT}/etc/hotplug.d/default/10-udev.hotplug ]]
 	then
 		rm -f "${ROOT}"/etc/hotplug.d/default/10-udev.hotplug
 	fi

 	has_version "=${CATEGORY}/${PN}-103-r3"
 	previous_equal_to_103_r3=$?

 	has_version "<${CATEGORY}/${PN}-104-r5"
 	previous_less_than_104_r5=$?

 	has_version "<${CATEGORY}/${PN}-106-r5"
 	previous_less_than_106_r5=$?

 	has_version "<${CATEGORY}/${PN}-113"
 	previous_less_than_113=$?
 }

 # 19 Nov 2008
 fix_old_persistent_net_rules() {
 	local rules=${ROOT}/etc/udev/rules.d/70-persistent-net.rules
 	[[ -f ${rules} ]] || return

 	elog
 	elog "Updating persistent-net rules file"

 	# Change ATTRS to ATTR matches, Bug #246927
 	sed -i -e 's/ATTRS{/ATTR{/g' "${rules}"

 	# Add KERNEL matches if missing, Bug #246849
 	sed -ri \
 		-e '/KERNEL/ ! { s/NAME="(eth|wlan|ath)([0-9]+)"/KERNEL=="\1*", NAME="\1\2"/}' \
 		"${rules}"
 }

 # See Bug #129204 for a discussion about restarting udevd
 restart_udevd() {
 	if [[ ${NO_RESTART} = "1" ]]; then
 		ewarn "Not restarting udevd, as your kernel is too old!"
 		return
 	fi

 	# need to merge to our system
 	[[ ${ROOT} = / ]] || return

 	# check if root of init-process is identical to ours (not in chroot)
 	[[ -r /proc/1/root && /proc/1/root/ -ef /proc/self/root/ ]] || return

 	# abort if there is no udevd running
 	[[ -n $(pidof udevd) ]] || return

 	# abort if no /dev/.udev exists
 	[[ -e /dev/.udev ]] || return

 	elog
 	elog "restarting udevd now."

 	killall -15 udevd &>/dev/null
 	sleep 1
 	killall -9 udevd &>/dev/null

 	/sbin/udevd --daemon
 	sleep 3
 	if [[ ! -n $(pidof udevd) ]]; then
 		eerror "FATAL: udev died, please check your kernel is"
 		eerror "new enough and configured correctly for ${P}."
 		eerror
 		eerror "Please have a look at this before rebooting."
 		eerror "If in doubt, please downgrade udev back to your old version"
 		ebeep
 	fi
 }

 postinst_init_scripts() {
 	# FIXME: we may need some code that detects if this is a system bootstrap
 	# and auto-enables udev then
 	#
 	# FIXME: inconsistent handling of init-scripts here
 	#  * udev is added to sysinit in openrc-ebuild
 	#  * we add udev-postmount to default in here
 	#

 	# migration to >=openrc-0.4
 	if [[ -e "${ROOT}"/etc/runlevels/sysinit && ! -e "${ROOT}"/etc/runlevels/sysinit/udev ]]
 	then
 		ewarn
 		ewarn "You need to add the udev init script to the runlevel sysinit,"
 		ewarn "else your system will not be able to boot"
 		ewarn "after updating to >=openrc-0.4.0"
 		ewarn "Run this to enable udev for >=openrc-0.4.0:"
 		ewarn "\trc-update add udev sysinit"
 		ewarn
 	fi

 	# add udev-postmount to default runlevel instead of that ugly injecting
 	# like a hotplug event, 2009/10/15

 	# already enabled?
 	[[ -e "${ROOT}"/etc/runlevels/default/udev-postmount ]] && return

 	local enable_postmount=0
 	[[ -e "${ROOT}"/etc/runlevels/sysinit/udev ]] && enable_postmount=1
 	[[ "${ROOT}" = "/" && -d /dev/.udev/ ]] && enable_postmount=1

 	if [[ ${enable_postmount} = 1 ]]
 	then
 		local initd=udev-postmount

 		if [[ -e ${ROOT}/etc/init.d/${initd} ]] && \
 			[[ ! -e ${ROOT}/etc/runlevels/default/${initd} ]]
 		then
 			ln -snf /etc/init.d/${initd} "${ROOT}"/etc/runlevels/default/${initd}
 			elog "Auto-adding '${initd}' service to your default runlevel"
 		fi
 	else
 		elog "You should add the udev-postmount service to default runlevel."
 		elog "Run this to add it:"
 		elog "\trc-update add udev-postmount default"
 	fi
 }

 pkg_postinst() {
 	fix_old_persistent_net_rules

 	# "losetup -f" is confused if there is an empty /dev/loop/, Bug #338766
 	# So try to remove it here (will only work if empty).
 	rmdir "${ROOT}"/dev/loop 2>/dev/null
 	if [[ -d "${ROOT}"/dev/loop ]]; then
 		ewarn "Please make sure your remove /dev/loop,"
 		ewarn "else losetup may be confused when looking for unused devices."
 	fi

 	restart_udevd

 	postinst_init_scripts

 	# people want reminders, I'll give them reminders.  Odds are they will
 	# just ignore them anyway...

 	# delete 40-scsi-hotplug.rules, it is integrated in 50-udev.rules, 19 Jan 2007
 	if [[ $previous_equal_to_103_r3 = 0 ]] &&
 		[[ -e ${ROOT}/etc/udev/rules.d/40-scsi-hotplug.rules ]]
 	then
 		ewarn "Deleting stray 40-scsi-hotplug.rules"
 		ewarn "installed by sys-fs/udev-103-r3"
 		rm -f "${ROOT}"/etc/udev/rules.d/40-scsi-hotplug.rules
 	fi

 	# Removing some device-nodes we thought we need some time ago, 25 Jan 2007
 	if [[ -d ${ROOT}/lib/udev/devices ]]
 	then
 		rm -f "${ROOT}"/lib/udev/devices/{null,zero,console,urandom}
 	fi

 	# Removing some old file, 29 Jan 2007
 	if [[ $previous_less_than_104_r5 = 0 ]]
 	then
 		rm -f "${ROOT}"/etc/dev.d/net/hotplug.dev
 		rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/net 2>/dev/null
 	fi

 	# 19 Mar 2007
 	if [[ $previous_less_than_106_r5 = 0 ]] &&
 		[[ -e ${ROOT}/etc/udev/rules.d/95-net.rules ]]
 	then
 		rm -f "${ROOT}"/etc/udev/rules.d/95-net.rules
 	fi

 	# Try to remove /etc/dev.d as that is obsolete, 23 Apr 2007
 	if [[ -d ${ROOT}/etc/dev.d ]]
 	then
 		rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/default "${ROOT}"/etc/dev.d 2>/dev/null
 		if [[ -d ${ROOT}/etc/dev.d ]]
 		then
 			ewarn "You still have the directory /etc/dev.d on your system."
 			ewarn "This is no longer used by udev and can be removed."
 		fi
 	fi

 	# 64-device-mapper.rules now gets installed by sys-fs/device-mapper
 	# remove it if user don't has sys-fs/device-mapper installed, 27 Jun 2007
 	if [[ $previous_less_than_113 = 0 ]] &&
 		[[ -f ${ROOT}/etc/udev/rules.d/64-device-mapper.rules ]] &&
 		! has_version sys-fs/device-mapper
 	then
 			rm -f "${ROOT}"/etc/udev/rules.d/64-device-mapper.rules
 			einfo "Removed unneeded file 64-device-mapper.rules"
 	fi

 	# requested in bug #275974, added 2009/09/05
 	ewarn
 	ewarn "If after the udev update removable devices or CD/DVD drives"
 	ewarn "stop working, try re-emerging HAL before filling a bug report"

 	# requested in Bug #225033:
 	elog
 	elog "persistent-net does assigning fixed names to network devices."
 	elog "If you have problems with the persistent-net rules,"
 	elog "just delete the rules file"
 	elog "\trm ${ROOT}etc/udev/rules.d/70-persistent-net.rules"
 	elog "and then reboot."
 	elog
 	elog "This may however number your devices in a different way than they are now."

 	ewarn
 	ewarn "If you build an initramfs including udev, then please"
 	ewarn "make sure that the /sbin/udevadm binary gets included,"
 	ewarn "and your scripts changed to use it,as it replaces the"
 	ewarn "old helper apps udevinfo, udevtrigger, ..."

 	ewarn
 	ewarn "mount options for directory /dev are no longer"
 	ewarn "set in /etc/udev/udev.conf, but in /etc/fstab"
 	ewarn "as for other directories."

 	ewarn
 	ewarn "If you use /dev/md/*, /dev/loop/* or /dev/rd/*,"
 	ewarn "then please migrate over to using the device names"
 	ewarn "/dev/md*, /dev/loop* and /dev/ram*."
 	ewarn "The devfs-compat rules have been removed."
 	ewarn "For reference see Bug #269359."

 	ewarn
 	ewarn "Rules for /dev/hd* devices have been removed"
 	ewarn "Please migrate to libata."

 	elog
 	elog "For more information on udev on Gentoo, writing udev rules, and"
 	elog "         fixing known issues visit:"
 	elog "         http://www.gentoo.org/doc/en/udev-guide.xml"
 }
	# Copyright 1999-2011 Gentoo Foundation
	# Distributed under the terms of the GNU General Public License v2
	# $Header: /var/cvsroot/gentoo-x86/sys-fs/udev/udev-168-r2.ebuild,v 1.1 2011/05/14 14:00:34 zzam Exp $

	EAPI="1"

	inherit eutils flag-o-matic multilib toolchain-funcs linux-info autotools

	# I jumped ahead of Gentoo
	#PATCHSET=${P}-gentoo-patchset-v1
	scriptversion=v3
	scriptname=udev-gentoo-scripts-${scriptversion}

	if [[ ${PV} == "9999" ]]; then
	SRC_URI="mirror://gentoo/${scriptname}.tar.bz2"
	EGIT_REPO_URI="git://git.kernel.org/pub/scm/linux/hotplug/udev.git"
	EGIT_BRANCH="master"
	inherit git autotools
	else
	# please update testsys-tarball whenever udev-xxx/test/sys/ is changed
	SRC_URI="mirror://kernel/linux/utils/kernel/hotplug/${P}.tar.bz2
	test? ( mirror://gentoo/${PN}-151-testsys.tar.bz2 )
	mirror://gentoo/${scriptname}.tar.bz2"
	[[ -n "${PATCHSET}" ]] && SRC_URI="${SRC_URI} mirror://gentoo/${PATCHSET}.tar.bz2"
	fi
	DESCRIPTION="Linux dynamic and persistent device naming support (aka userspace devfs)"
	HOMEPAGE="http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html"

	LICENSE="GPL-2"
	SLOT="0"
	KEYWORDS="~alpha amd64 arm ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~s390 ~sh ~sparc x86"
	IUSE="selinux test rule_generator hwdb acl gudev introspection
	keymap floppy edd action_modeswitch"

	COMMON_DEPEND="selinux? ( sys-libs/libselinux )
	acl? ( sys-apps/acl dev-libs/glib:2 )
	gudev? ( dev-libs/glib:2 )
	introspection? ( dev-libs/gobject-introspection )
	action_modeswitch? ( virtual/libusb:0 )
	>=sys-apps/util-linux-2.16
	>=sys-libs/glibc-2.9"

	DEPEND="${COMMON_DEPEND}
	keymap? ( dev-util/gperf )
	virtual/os-headers
	!<sys-kernel/linux-headers-2.6.29
	test? ( app-text/tree )"

	RDEPEND="${COMMON_DEPEND}
	hwdb?
	(
	>=sys-apps/usbutils-0.82
	sys-apps/pciutils
	)
	!sys-apps/coldplug
	!<sys-fs/lvm2-2.02.45
	!sys-fs/device-mapper
	>=sys-apps/baselayout-1.12.5"

	if [[ ${PV} == "9999" ]]; then
	# for documentation processing with xsltproc
	DEPEND="${DEPEND}
	app-text/docbook-xsl-stylesheets
	app-text/docbook-xml-dtd
	dev-util/gtk-doc"
	fi

	# required kernel options
	CONFIG_CHECK="~INOTIFY_USER ~SIGNALFD ~!SYSFS_DEPRECATED ~!SYSFS_DEPRECATED_V2
	~!IDE"

	udev_check_KV() {
	local ok=0
	if [[ ${KV_MAJOR} == 2 && ${KV_MINOR} == 6 ]]
	then
	if kernel_is -ge 2 6 ${KV_PATCH_reliable} ; then
	ok=2
	elif kernel_is -ge 2 6 ${KV_PATCH_min} ; then
	ok=1
	fi
	fi
	return $ok
	}

	pkg_setup() {
	linux-info_pkg_setup

	# udev requires signalfd introduced in kernel 2.6.25,
	# but a glibc compiled against >=linux-headers-2.6.27 uses the
	# new signalfd syscall introduced in kernel 2.6.27 without falling back
	# to the old one. So we just depend on 2.6.27 here, see Bug #281312.
	KV_PATCH_min=25
	KV_PATCH_reliable=31
	KV_min=2.6.${KV_PATCH_min}
	KV_reliable=2.6.${KV_PATCH_reliable}

	# always print kernel version requirements
	ewarn
	ewarn "${P} does not support Linux kernel before version ${KV_min}!"
	if [[ ${KV_PATCH_min} != ${KV_PATCH_reliable} ]]; then
	ewarn "For a reliable udev, use at least kernel ${KV_reliable}"
	fi

	echo
	# We don't care about the secondary revision of the kernel.
	# 2.6.30.4 -> 2.6.30 is all we check
	udev_check_KV
	case "$?" in
	2) einfo "Your kernel version (${KV_FULL}) is new enough to run ${P} reliably." ;;
	1) ewarn "Your kernel version (${KV_FULL}) is new enough to run ${P},"
	ewarn "but it may be unreliable in some cases."
	ebeep ;;
	0) eerror "Your kernel version (${KV_FULL}) is too old to run ${P}"
	ebeep ;;
	esac
	echo

	KV_FULL_SRC=${KV_FULL}
	get_running_version
	udev_check_KV
	if [[ "$?" = "0" ]]; then
	eerror
	eerror "udev cannot be restarted after emerging,"
	eerror "as your running kernel version (${KV_FULL}) is too old."
	eerror "You really need to use a newer kernel after a reboot!"
	NO_RESTART=1
	ebeep
	fi
	}

	src_unpack() {
	unpack ${A}
	if [[ ${PV} == "9999" ]] ; then
	git_src_unpack
	else
	if use test; then
	mv "${WORKDIR}"/test/sys "${S}"/test/
	fi
	fi

	#cd "${WORKDIR}/${scriptname}"

	cd "${S}"

	# patches go here...
	# run-not-writable taken from the 168 gentoo patchset
	epatch "${FILESDIR}"/udev-170-run-not-writable.patch
	# usb.ids location can't come from pkgconfig (chromiumos:15595)
	epatch "${FILESDIR}"/udev-170-usb-ids-location.patch

	# backport some patches
	if [[ -n "${PATCHSET}" ]]; then
	EPATCH_SOURCE="${WORKDIR}/${PATCHSET}" EPATCH_SUFFIX="patch" \
	EPATCH_FORCE="yes" epatch
	fi

	# change rules back to group uucp instead of dialout for now
	sed -e 's/GROUP="dialout"/GROUP="uucp"/' \
	-i rules/{rules.d,arch}/*.rules \
	\|\| die "failed to change group dialout to uucp"

	if [[ ${PV} != 9999 ]]; then
	# Make sure there is no sudden changes to upstream rules file
	# (more for my own needs than anything else ...)
	MD5=$(md5sum < "${S}/rules/rules.d/50-udev-default.rules")
	MD5=${MD5/ -/}
	if [[ ${MD5} != a9954d57e97aa0ad2e0ed53899d9559a ]]
	then
	echo
	eerror "50-udev-default.rules has been updated, please validate!"
	eerror "md5sum: ${MD5}"
	die "50-udev-default.rules has been updated, please validate!"
	fi
	fi

	if [[ ${PV} == 9999 ]]; then
	gtkdocize --copy \|\| die "gtkdocize failed"
	fi
	eautoreconf
	}

	src_compile() {
	filter-flags -fprefetch-loop-arrays

	econf \
	--prefix=/usr \
	--sysconfdir=/etc \
	--sbindir=/sbin \
	--libdir=/usr/$(get_libdir) \
	--with-rootlibdir=/$(get_libdir) \
	--libexecdir=/lib/udev \
	--enable-logging \
	--enable-static \
	$(use_with selinux) \
	$(use_enable debug) \
	$(use_enable rule_generator) \
	$(use_enable hwdb) \
	--with-pci-ids-path="/usr/share/misc/pci.ids" \
	--with-usb-ids-path="/usr/share/misc/usb.ids" \
	$(use_enable acl udev_acl) \
	$(use_enable gudev) \
	$(use_enable introspection) \
	$(use_enable keymap) \
	$(use_enable floppy) \
	$(use_enable edd) \
	$(use_enable action_modeswitch) \
	--without-systemdsystemunitdir

	emake \|\| die "compiling udev failed"
	}

	src_install() {
	emake -C "${WORKDIR}/${scriptname}" \
	DESTDIR="${D}" LIBDIR="$(get_libdir)" \
	KV_min="${KV_min}" KV_reliable="${KV_reliable}" \
	install \|\| die "make install failed"

	into /
	emake DESTDIR="${D}" install \|\| die "make install failed"

	exeinto /lib/udev
	keepdir /lib/udev/state
	keepdir /lib/udev/devices

	# create symlinks for these utilities to /sbin
	# where multipath-tools expect them to be (Bug #168588)
	dosym "../lib/udev/scsi_id" /sbin/scsi_id

	# Add gentoo stuff to udev.conf
	echo "# If you need to change mount-options, do it in /etc/fstab" \
	>> "${D}"/etc/udev/udev.conf

	# let the dir exist at least
	keepdir /etc/udev/rules.d

	# Now installing rules
	cd "${S}"/rules
	insinto /lib/udev/rules.d/

	# support older kernels
	doins misc/30-kernel-compat.rules

	# Adding arch specific rules
	if [[ -f arch/40-${ARCH}.rules ]]
	then
	doins "arch/40-${ARCH}.rules"
	fi
	cd "${S}"

	insinto /etc/modprobe.d
	newins "${FILESDIR}"/blacklist-146 blacklist.conf
	newins "${FILESDIR}"/pnp-aliases pnp-aliases.conf

	# documentation
	dodoc ChangeLog README TODO \|\| die "failed installing docs"

	# keep doc in just one directory, Bug #281137
	rm -rf "${D}/usr/share/doc/${PN}"
	if use keymap; then
	dodoc extras/keymap/README.keymap.txt \|\| die "failed installing docs"
	fi
	}

	pkg_preinst() {
	# moving old files to support newer modprobe, 12 May 2009
	local f dir=${ROOT}/etc/modprobe.d/
	for f in pnp-aliases blacklist; do
	if [[ -f $dir/$f && ! -f $dir/$f.conf ]]
	then
	elog "Moving $dir/$f to $f.conf"
	mv -f "$dir/$f" "$dir/$f.conf"
	fi
	done

	if [[ -d ${ROOT}/lib/udev-state ]]
	then
	mv -f "${ROOT}"/lib/udev-state/* "${D}"/lib/udev/state/
	rm -r "${ROOT}"/lib/udev-state
	fi

	if [[ -f ${ROOT}/etc/udev/udev.config &&
	! -f ${ROOT}/etc/udev/udev.rules ]]
	then
	mv -f "${ROOT}"/etc/udev/udev.config "${ROOT}"/etc/udev/udev.rules
	fi

	# delete the old udev.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/udev.hotplug ]]
	then
	rm -f "${ROOT}"/etc/hotplug.d/default/udev.hotplug
	fi

	# delete the old wait_for_sysfs.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/05-wait_for_sysfs.hotplug ]]
	then
	rm -f "${ROOT}"/etc/hotplug.d/default/05-wait_for_sysfs.hotplug
	fi

	# delete the old wait_for_sysfs.hotplug symlink if it is present
	if [[ -h ${ROOT}/etc/hotplug.d/default/10-udev.hotplug ]]
	then
	rm -f "${ROOT}"/etc/hotplug.d/default/10-udev.hotplug
	fi

	has_version "=${CATEGORY}/${PN}-103-r3"
	previous_equal_to_103_r3=$?

	has_version "<${CATEGORY}/${PN}-104-r5"
	previous_less_than_104_r5=$?

	has_version "<${CATEGORY}/${PN}-106-r5"
	previous_less_than_106_r5=$?

	has_version "<${CATEGORY}/${PN}-113"
	previous_less_than_113=$?
	}

	# 19 Nov 2008
	fix_old_persistent_net_rules() {
	local rules=${ROOT}/etc/udev/rules.d/70-persistent-net.rules
	[[ -f ${rules} ]] \|\| return

	elog
	elog "Updating persistent-net rules file"

	# Change ATTRS to ATTR matches, Bug #246927
	sed -i -e 's/ATTRS{/ATTR{/g' "${rules}"

	# Add KERNEL matches if missing, Bug #246849
	sed -ri \
	-e '/KERNEL/ ! { s/NAME="(eth\|wlan\|ath)([0-9]+)"/KERNEL=="\1*", NAME="\1\2"/}' \
	"${rules}"
	}

	# See Bug #129204 for a discussion about restarting udevd
	restart_udevd() {
	if [[ ${NO_RESTART} = "1" ]]; then
	ewarn "Not restarting udevd, as your kernel is too old!"
	return
	fi

	# need to merge to our system
	[[ ${ROOT} = / ]] \|\| return

	# check if root of init-process is identical to ours (not in chroot)
	[[ -r /proc/1/root && /proc/1/root/ -ef /proc/self/root/ ]] \|\| return

	# abort if there is no udevd running
	[[ -n $(pidof udevd) ]] \|\| return

	# abort if no /dev/.udev exists
	[[ -e /dev/.udev ]] \|\| return

	elog
	elog "restarting udevd now."

	killall -15 udevd &>/dev/null
	sleep 1
	killall -9 udevd &>/dev/null

	/sbin/udevd --daemon
	sleep 3
	if [[ ! -n $(pidof udevd) ]]; then
	eerror "FATAL: udev died, please check your kernel is"
	eerror "new enough and configured correctly for ${P}."
	eerror
	eerror "Please have a look at this before rebooting."
	eerror "If in doubt, please downgrade udev back to your old version"
	ebeep
	fi
	}

	postinst_init_scripts() {
	# FIXME: we may need some code that detects if this is a system bootstrap
	# and auto-enables udev then
	#
	# FIXME: inconsistent handling of init-scripts here
	# * udev is added to sysinit in openrc-ebuild
	# * we add udev-postmount to default in here
	#

	# migration to >=openrc-0.4
	if [[ -e "${ROOT}"/etc/runlevels/sysinit && ! -e "${ROOT}"/etc/runlevels/sysinit/udev ]]
	then
	ewarn
	ewarn "You need to add the udev init script to the runlevel sysinit,"
	ewarn "else your system will not be able to boot"
	ewarn "after updating to >=openrc-0.4.0"
	ewarn "Run this to enable udev for >=openrc-0.4.0:"
	ewarn "\trc-update add udev sysinit"
	ewarn
	fi

	# add udev-postmount to default runlevel instead of that ugly injecting
	# like a hotplug event, 2009/10/15

	# already enabled?
	[[ -e "${ROOT}"/etc/runlevels/default/udev-postmount ]] && return

	local enable_postmount=0
	[[ -e "${ROOT}"/etc/runlevels/sysinit/udev ]] && enable_postmount=1
	[[ "${ROOT}" = "/" && -d /dev/.udev/ ]] && enable_postmount=1

	if [[ ${enable_postmount} = 1 ]]
	then
	local initd=udev-postmount

	if [[ -e ${ROOT}/etc/init.d/${initd} ]] && \
	[[ ! -e ${ROOT}/etc/runlevels/default/${initd} ]]
	then
	ln -snf /etc/init.d/${initd} "${ROOT}"/etc/runlevels/default/${initd}
	elog "Auto-adding '${initd}' service to your default runlevel"
	fi
	else
	elog "You should add the udev-postmount service to default runlevel."
	elog "Run this to add it:"
	elog "\trc-update add udev-postmount default"
	fi
	}

	pkg_postinst() {
	fix_old_persistent_net_rules

	# "losetup -f" is confused if there is an empty /dev/loop/, Bug #338766
	# So try to remove it here (will only work if empty).
	rmdir "${ROOT}"/dev/loop 2>/dev/null
	if [[ -d "${ROOT}"/dev/loop ]]; then
	ewarn "Please make sure your remove /dev/loop,"
	ewarn "else losetup may be confused when looking for unused devices."
	fi

	restart_udevd

	postinst_init_scripts

	# people want reminders, I'll give them reminders. Odds are they will
	# just ignore them anyway...

	# delete 40-scsi-hotplug.rules, it is integrated in 50-udev.rules, 19 Jan 2007
	if [[ $previous_equal_to_103_r3 = 0 ]] &&
	[[ -e ${ROOT}/etc/udev/rules.d/40-scsi-hotplug.rules ]]
	then
	ewarn "Deleting stray 40-scsi-hotplug.rules"
	ewarn "installed by sys-fs/udev-103-r3"
	rm -f "${ROOT}"/etc/udev/rules.d/40-scsi-hotplug.rules
	fi

	# Removing some device-nodes we thought we need some time ago, 25 Jan 2007
	if [[ -d ${ROOT}/lib/udev/devices ]]
	then
	rm -f "${ROOT}"/lib/udev/devices/{null,zero,console,urandom}
	fi

	# Removing some old file, 29 Jan 2007
	if [[ $previous_less_than_104_r5 = 0 ]]
	then
	rm -f "${ROOT}"/etc/dev.d/net/hotplug.dev
	rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/net 2>/dev/null
	fi

	# 19 Mar 2007
	if [[ $previous_less_than_106_r5 = 0 ]] &&
	[[ -e ${ROOT}/etc/udev/rules.d/95-net.rules ]]
	then
	rm -f "${ROOT}"/etc/udev/rules.d/95-net.rules
	fi

	# Try to remove /etc/dev.d as that is obsolete, 23 Apr 2007
	if [[ -d ${ROOT}/etc/dev.d ]]
	then
	rmdir --ignore-fail-on-non-empty "${ROOT}"/etc/dev.d/default "${ROOT}"/etc/dev.d 2>/dev/null
	if [[ -d ${ROOT}/etc/dev.d ]]
	then
	ewarn "You still have the directory /etc/dev.d on your system."
	ewarn "This is no longer used by udev and can be removed."
	fi
	fi

	# 64-device-mapper.rules now gets installed by sys-fs/device-mapper
	# remove it if user don't has sys-fs/device-mapper installed, 27 Jun 2007
	if [[ $previous_less_than_113 = 0 ]] &&
	[[ -f ${ROOT}/etc/udev/rules.d/64-device-mapper.rules ]] &&
	! has_version sys-fs/device-mapper
	then
	rm -f "${ROOT}"/etc/udev/rules.d/64-device-mapper.rules
	einfo "Removed unneeded file 64-device-mapper.rules"
	fi

	# requested in bug #275974, added 2009/09/05
	ewarn
	ewarn "If after the udev update removable devices or CD/DVD drives"
	ewarn "stop working, try re-emerging HAL before filling a bug report"

	# requested in Bug #225033:
	elog
	elog "persistent-net does assigning fixed names to network devices."
	elog "If you have problems with the persistent-net rules,"
	elog "just delete the rules file"
	elog "\trm ${ROOT}etc/udev/rules.d/70-persistent-net.rules"
	elog "and then reboot."
	elog
	elog "This may however number your devices in a different way than they are now."

	ewarn
	ewarn "If you build an initramfs including udev, then please"
	ewarn "make sure that the /sbin/udevadm binary gets included,"
	ewarn "and your scripts changed to use it,as it replaces the"
	ewarn "old helper apps udevinfo, udevtrigger, ..."

	ewarn
	ewarn "mount options for directory /dev are no longer"
	ewarn "set in /etc/udev/udev.conf, but in /etc/fstab"
	ewarn "as for other directories."

	ewarn
	ewarn "If you use /dev/md/, /dev/loop/ or /dev/rd/*,"
	ewarn "then please migrate over to using the device names"
	ewarn "/dev/md, /dev/loop and /dev/ram*."
	ewarn "The devfs-compat rules have been removed."
	ewarn "For reference see Bug #269359."

	ewarn
	ewarn "Rules for /dev/hd* devices have been removed"
	ewarn "Please migrate to libata."

	elog
	elog "For more information on udev on Gentoo, writing udev rules, and"
	elog " fixing known issues visit:"
	elog " http://www.gentoo.org/doc/en/udev-guide.xml"
	}