mysql-multilib-r1.eclass: New Eclass for building mysql servers

This eclass is a revision to the previous mysql-multilib to clean up
the duplicated code.
This includes specific dependencies for certain providers.

Provider specific information will be kept in the provider's ebuilds.
Only common items should be placed here and possibly exceptions to those
rules.

Signed-off-by: Brian Evans <grknight@gentoo.org>

1 files changed, 1044 insertions, 0 deletions

diff --git a/eclass/mysql-multilib-r1.eclass b/eclass/mysql-multilib-r1.eclass
new file mode 100644
index 000000000000..082f65ad5c66
--- /dev/null
+++ b/eclass/mysql-multilib-r1.eclass
@@ -0,0 +1,1044 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: mysql-multilib.eclass
+# @MAINTAINER:
+# Maintainers:
+#	- MySQL Team <mysql-bugs@gentoo.org>
+#	- Robin H. Johnson <robbat2@gentoo.org>
+#	- Jorge Manuel B. S. Vicetto <jmbsvicetto@gentoo.org>
+#	- Brian Evans <grknight@gentoo.org>
+# @BLURB: This eclass provides common functions for mysql ebuilds
+# @DESCRIPTION:
+# The mysql-multilib-r1.eclass is the base eclass to build the mysql and
+# alternative projects (mariadb and percona) ebuilds.
+# Provider and version specific settings will be included in each ebuild.
+# It provides the src_unpack, src_prepare, src_configure, src_compile,
+# src_install, pkg_preinst, pkg_postinst, pkg_config and pkg_postrm
+# phase hooks.
+
+MYSQL_EXTRAS=""
+
+# @ECLASS-VARIABLE: MYSQL_EXTRAS_VER
+# @DESCRIPTION:
+# The version of the MYSQL_EXTRAS repo to use to build mysql
+# Use "none" to disable it's use
+[[ ${MY_EXTRAS_VER} == "live" ]] && MYSQL_EXTRAS="git-r3"
+
+# @ECLASS-VARIABLE: MYSQL_CMAKE_NATIVE_DEFINES
+# @DESCRIPTION:
+# An array of extra CMake arguments for native multilib builds
+
+# @ECLASS-VARIABLE: MYSQL_CMAKE_NONNATIVE_DEFINES
+# @DESCRIPTION:
+# An array of extra CMake arguments for non-native multilib builds
+
+# @ECLASS-VARIABLE: MYSQL_CMAKE_EXTRA_DEFINES
+# @DESCRIPTION:
+# An array of CMake arguments added to native and non-native
+
+inherit eutils systemd flag-o-matic ${MYSQL_EXTRAS} mysql_fx versionator \
+	multilib prefix toolchain-funcs user cmake-utils multilib-minimal
+
+#
+# Supported EAPI versions and export functions
+#
+
+case "${EAPI:-0}" in
+	5) ;;
+	*) die "Unsupported EAPI: ${EAPI}" ;;
+esac
+
+EXPORT_FUNCTIONS pkg_pretend pkg_setup src_unpack src_prepare src_configure src_compile src_install pkg_preinst pkg_postinst pkg_config
+
+#
+# VARIABLES:
+#
+
+# Shorten the path because the socket path length must be shorter than 107 chars
+# and we will run a mysql server during test phase
+S="${WORKDIR}/mysql"
+
+[[ ${MY_EXTRAS_VER} == "latest" ]] && MY_EXTRAS_VER="20090228-0714Z"
+if [[ ${MY_EXTRAS_VER} == "live" ]]; then
+	EGIT_REPO_URI="git://anongit.gentoo.org/proj/mysql-extras.git"
+	EGIT_CHECKOUT_DIR=${WORKDIR}/mysql-extras
+	EGIT_CLONE_TYPE=shallow
+fi
+
+# @ECLASS-VARIABLE: MYSQL_PV_MAJOR
+# @DESCRIPTION:
+# Upstream MySQL considers the first two parts of the version number to be the
+# major version. Upgrades that change major version should always run
+# mysql_upgrade.
+if [[ -z ${MYSQL_PV_MAJOR} ]] ; then MYSQL_PV_MAJOR="$(get_version_component_range 1-2 ${PV})" ; fi
+
+# @ECLASS-VARIABLE: MYSQL_VERSION_ID
+# @DESCRIPTION:
+# MYSQL_VERSION_ID will be:
+# major * 10e6 + minor * 10e4 + micro * 10e2 + gentoo revision number, all [0..99]
+# This is an important part, because many of the choices the MySQL ebuild will do
+# depend on this variable.
+# In particular, the code below transforms a $PVR like "5.0.18-r3" in "5001803"
+# We also strip off upstream's trailing letter that they use to respin tarballs
+MYSQL_VERSION_ID=""
+tpv="${PV%[a-z]}"
+tpv=( ${tpv//[-._]/ } ) ; tpv[3]="${PVR:${#PV}}" ; tpv[3]="${tpv[3]##*-r}"
+for vatom in 0 1 2 3 ; do
+	# pad to length 2
+	tpv[${vatom}]="00${tpv[${vatom}]}"
+	MYSQL_VERSION_ID="${MYSQL_VERSION_ID}${tpv[${vatom}]:0-2}"
+done
+# strip leading "0" (otherwise it's considered an octal number by BASH)
+MYSQL_VERSION_ID=${MYSQL_VERSION_ID##"0"}
+
+# This eclass should only be used with at least mysql-5.5.35
+mysql_version_is_at_least "5.5.35" || die "This eclass should only be used with >=mysql-5.5.35"
+
+# Work out the default SERVER_URI correctly
+if [[ -z ${SERVER_URI} ]]; then
+	if [[ ${PN} == "mariadb" ]]; then
+		# Beginning with 5.5, MariaDB stopped putting beta, alpha or rc on their tarball names
+		MARIA_FULL_PV=$(get_version_component_range 1-3)
+		MARIA_FULL_P="${PN}-${MARIA_FULL_PV}"
+		SERVER_URI="https://downloads.mariadb.org/interstitial/${MARIA_FULL_P}/source/${MARIA_FULL_P}.tar.gz"
+	elif [[ ${PN} == "percona-server" ]]; then
+		PERCONA_PN="Percona-Server"
+		MIRROR_PV=$(get_version_component_range 1-2 ${PV})
+		MY_PV=$(get_version_component_range 1-3 ${PV})
+		PERCONA_RELEASE=$(get_version_component_range 4-5 ${PV})
+		PERCONA_RC=$(get_version_component_range 6 ${PV})
+		SERVER_URI="http://www.percona.com/redir/downloads/${PERCONA_PN}-${MIRROR_PV}/${PERCONA_PN}-${MY_PV}-${PERCONA_RC}${PERCONA_RELEASE}/source/tarball/${PN}-${MY_PV}-${PERCONA_RC}${PERCONA_RELEASE}.tar.gz"
+	else
+		if [[ "${PN}" == "mysql-cluster" ]] ; then
+			URI_DIR="MySQL-Cluster"
+			URI_FILE="mysql-cluster-gpl"
+		else
+			URI_DIR="MySQL"
+			URI_FILE="mysql"
+		fi
+		[[ -z ${MY_PV} ]] && MY_PV="${PV//_/-}"
+		URI_A="${URI_FILE}-${MY_PV}.tar.gz"
+		MIRROR_PV=$(get_version_component_range 1-2 ${PV})
+		# Recently upstream switched to an archive site, and not on mirrors
+		SERVER_URI="http://cdn.mysql.com/Downloads/${URI_DIR}-${MIRROR_PV}/${URI_A}
+			http://downloads.mysql.com/archives/${URI_DIR}-${MIRROR_PV}/${URI_A}"
+	fi
+fi
+
+# Define correct SRC_URIs
+SRC_URI="${SERVER_URI}"
+
+# Gentoo patches to MySQL
+if [[ ${MY_EXTRAS_VER} != "live" && ${MY_EXTRAS_VER} != "none" ]]; then
+	SRC_URI="${SRC_URI}
+		mirror://gentoo/mysql-extras-${MY_EXTRAS_VER}.tar.bz2
+		https://dev.gentoo.org/~grknight/distfiles/mysql-extras-${MY_EXTRAS_VER}.tar.bz2
+		https://dev.gentoo.org/~robbat2/distfiles/mysql-extras-${MY_EXTRAS_VER}.tar.bz2
+		https://dev.gentoo.org/~jmbsvicetto/distfiles/mysql-extras-${MY_EXTRAS_VER}.tar.bz2"
+fi
+
+DESCRIPTION="A fast, multi-threaded, multi-user SQL database server"
+HOMEPAGE="http://www.mysql.com/"
+LICENSE="GPL-2"
+SLOT="0/${SUBSLOT:-0}"
+
+IUSE="debug embedded extraengine jemalloc latin1 libressl +openssl
+	+perl profiling selinux +server systemtap static static-libs tcmalloc test yassl"
+
+REQUIRED_USE="^^ ( yassl openssl libressl )"
+
+# Tests always fail when libressl is enabled due to hard-coded ciphers in the tests
+RESTRICT="libressl? ( test )"
+
+REQUIRED_USE="!server? ( !extraengine !embedded )
+	 ?? ( tcmalloc jemalloc )
+	 static? ( !libressl !openssl yassl )"
+
+#
+# DEPENDENCIES:
+#
+
+# Be warned, *DEPEND are version-dependant
+# These are used for both runtime and compiletime
+# MULTILIB_USEDEP only set for libraries used by the client library
+DEPEND="
+	kernel_linux? (
+		sys-process/procps:0=
+		dev-libs/libaio:0=
+	)
+	>=sys-apps/sed-4
+	>=sys-apps/texinfo-4.7-r1
+	!dev-db/mariadb-native-client[mysqlcompat]
+	jemalloc? ( dev-libs/jemalloc:0= )
+	tcmalloc? ( dev-util/google-perftools:0= )
+	systemtap? ( >=dev-util/systemtap-1.3:0= )
+	openssl? ( >=dev-libs/openssl-1.0.0:0=[${MULTILIB_USEDEP},static-libs?] )
+	libressl? ( dev-libs/libressl:0=[${MULTILIB_USEDEP},static-libs?] )
+	>=sys-libs/zlib-1.2.3:0=[${MULTILIB_USEDEP},static-libs?]
+	sys-libs/ncurses:0=
+"
+
+# prefix: first need to implement something for #196294
+RDEPEND="${DEPEND}
+	selinux? ( sec-policy/selinux-mysql )
+	abi_x86_32? ( !app-emulation/emul-linux-x86-db[-abi_x86_32(-)] )
+"
+
+# Having different flavours at the same time is not a good idea
+for i in "mysql" "mariadb" "mariadb-galera" "percona-server" "mysql-cluster" ; do
+	[[ ${i} == ${PN} ]] ||
+	RDEPEND="${RDEPEND} !dev-db/${i}"
+done
+
+RDEPEND="${RDEPEND}
+	server? ( !prefix? ( dev-db/mysql-init-scripts ) )
+	!<virtual/mysql-5.6-r4"
+
+# compile-time-only
+# ncurses only needs multilib for compile time due to a binary that will be not installed
+DEPEND="${DEPEND}
+	virtual/yacc
+	static? ( sys-libs/ncurses[static-libs] )
+"
+
+# For other stuff to bring us in
+# dev-perl/DBD-mysql is needed by some scripts installed by MySQL
+PDEPEND="${PDEPEND} perl? ( >=dev-perl/DBD-mysql-2.9004 )
+	 ~virtual/mysql-${MYSQL_PV_MAJOR}"
+
+# my_config.h includes ABI specific data
+MULTILIB_WRAPPED_HEADERS=( /usr/include/mysql/my_config.h /usr/include/mysql/private/embedded_priv.h )
+
+#
+# EBUILD FUNCTIONS
+#
+
+# @FUNCTION: mysql-multilib-r1_pkg_pretend
+# @DESCRIPTION:
+# Perform some basic tests and tasks during pkg_pretend phase:
+mysql-multilib-r1_pkg_pretend() {
+	if [[ ${MERGE_TYPE} != binary ]] ; then
+		local GCC_MAJOR_SET=$(gcc-major-version)
+		local GCC_MINOR_SET=$(gcc-minor-version)
+		if use_if_iuse tokudb && [[ ${GCC_MAJOR_SET} -lt 4 || \
+			${GCC_MAJOR_SET} -eq 4 && ${GCC_MINOR_SET} -lt 7 ]] ; then
+			eerror "${PN} with tokudb needs to be built with gcc-4.7 or later."
+			eerror "Please use gcc-config to switch to gcc-4.7 or later version."
+			die
+		fi
+		# Bug 565584.  InnoDB now requires atomic functions introduced with gcc-4.7 on
+		# non x86{,_64} arches
+		if ! use amd64 && ! use x86 && [[ ${GCC_MAJOR_SET} -lt 4 || \
+			${GCC_MAJOR_SET} -eq 4 && ${GCC_MINOR_SET} -lt 7 ]] ; then
+			eerror "${PN} needs to be built with gcc-4.7 or later."
+			eerror "Please use gcc-config to switch to gcc-4.7 or later version."
+			die
+		fi
+	fi
+}
+
+# @FUNCTION: mysql-multilib-r1_pkg_setup
+# @DESCRIPTION:
+# Perform some basic tests and tasks during pkg_setup phase:
+#   die if FEATURES="test", USE="server" and not using FEATURES="userpriv"
+#   create new user and group for mysql
+#   warn about deprecated features
+mysql-multilib-r1_pkg_setup() {
+
+	if has test ${FEATURES} && \
+		use server && ! has userpriv ${FEATURES} ; then
+			eerror "Testing with FEATURES=-userpriv is no longer supported by upstream. Tests MUST be run as non-root."
+	fi
+
+	# This should come after all of the die statements
+	enewgroup mysql 60 || die "problem adding 'mysql' group"
+	enewuser mysql 60 -1 /dev/null mysql || die "problem adding 'mysql' user"
+}
+
+# @FUNCTION: mysql-multilib-r1_src_unpack
+# @DESCRIPTION:
+# Unpack the source code
+mysql-multilib-r1_src_unpack() {
+
+	# Initialize the proper variables first
+	mysql_init_vars
+
+	unpack ${A}
+	# Grab the patches
+	[[ "${MY_EXTRAS_VER}" == "live" ]] && S="${WORKDIR}/mysql-extras" git-r3_src_unpack
+
+	mv -f "${WORKDIR}/${MY_SOURCEDIR}" "${S}"
+}
+
+# @FUNCTION: mysql-multilib-r1_src_prepare
+# @DESCRIPTION:
+# Apply patches to the source code and remove unneeded bundled libs.
+mysql-multilib-r1_src_prepare() {
+
+	debug-print-function ${FUNCNAME} "$@"
+
+	cd "${S}"
+
+	if [[ ${MY_EXTRAS_VER} != none ]]; then
+
+		# Apply the patches for this MySQL version
+		EPATCH_SUFFIX="patch"
+		mkdir -p "${EPATCH_SOURCE}" || die "Unable to create epatch directory"
+		# Clean out old items
+		rm -f "${EPATCH_SOURCE}"/*
+		# Now link in right patches
+		mysql_mv_patches
+		# And apply
+		epatch
+	fi
+
+	# last -fPIC fixup, per bug #305873
+	i="${S}"/storage/innodb_plugin/plug.in
+	if [[ -f ${i} ]] ; then sed -i -e '/CFLAGS/s,-prefer-non-pic,,g' "${i}" || die ; fi
+
+	rm -f "scripts/mysqlbug"
+	if use jemalloc && [[ ${PN} != "mariadb" ]] ; then
+		echo "TARGET_LINK_LIBRARIES(mysqld jemalloc)" >> "${S}/sql/CMakeLists.txt" || die
+	fi
+
+	if use tcmalloc; then
+		echo "TARGET_LINK_LIBRARIES(mysqld tcmalloc)" >> "${S}/sql/CMakeLists.txt"
+	fi
+
+	if in_iuse tokudb ; then
+		# Don't build bundled xz-utils
+		if [[ -d "${S}/storage/tokudb/ft-index" ]] ; then
+			rm -f "${S}/storage/tokudb/ft-index/cmake_modules/TokuThirdParty.cmake" || die
+			touch "${S}/storage/tokudb/ft-index/cmake_modules/TokuThirdParty.cmake" || die
+			sed -i 's/ build_lzma//' "${S}/storage/tokudb/ft-index/ft/CMakeLists.txt" || die
+		elif [[ -d "${S}/storage/tokudb/PerconaFT" ]] ; then
+			rm "${S}/storage/tokudb/PerconaFT/cmake_modules/TokuThirdParty.cmake" || die
+			touch "${S}/storage/tokudb/PerconaFT/cmake_modules/TokuThirdParty.cmake" || die
+			sed -i -e 's/ build_lzma//' -e 's/ build_snappy//' "${S}/storage/tokudb/PerconaFT/ft/CMakeLists.txt" || die
+			sed -i -e 's/add_dependencies\(tokuportability_static_conv build_jemalloc\)//' "${S}/storage/tokudb/PerconaFT/portability/CMakeLists.txt" || die
+		fi
+
+		if [[ -d "${S}/plugin/tokudb-backup-plugin" ]] && ! use tokudb-backup-plugin ; then
+			 rm -r "${S}/plugin/tokudb-backup-plugin/Percona-TokuBackup" || die
+		fi
+	fi
+
+	# Remove the bundled groonga if it exists
+	# There is no CMake flag, it simply checks for existance
+	if [[ -d "${S}"/storage/mroonga/vendor/groonga ]] ; then
+		rm -r "${S}"/storage/mroonga/vendor/groonga || die "could not remove packaged groonga"
+	fi
+
+	epatch_user
+}
+
+# @FUNCTION: mysql-multilib-r1_src_configure
+# @DESCRIPTION:
+# Configure mysql to build the code for Gentoo respecting the use flags.
+mysql-multilib-r1_src_configure() {
+	# Bug #114895, bug #110149
+	filter-flags "-O" "-O[01]"
+
+	append-cxxflags -felide-constructors -fno-rtti
+
+	# bug #283926, with GCC4.4, this is required to get correct behavior.
+	append-flags -fno-strict-aliasing
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	CMAKE_BUILD_TYPE="RelWithDebInfo"
+
+	# debug hack wrt #497532
+	mycmakeargs=(
+		-DCMAKE_C_FLAGS_RELWITHDEBINFO="$(usex debug '' '-DNDEBUG')"
+		-DCMAKE_CXX_FLAGS_RELWITHDEBINFO="$(usex debug '' '-DNDEBUG')"
+		-DCMAKE_INSTALL_PREFIX=${EPREFIX}/usr
+		-DMYSQL_DATADIR=${EPREFIX}/var/lib/mysql
+		-DSYSCONFDIR=${EPREFIX}/etc/mysql
+		-DINSTALL_BINDIR=bin
+		-DINSTALL_DOCDIR=share/doc/${PF}
+		-DINSTALL_DOCREADMEDIR=share/doc/${PF}
+		-DINSTALL_INCLUDEDIR=include/mysql
+		-DINSTALL_INFODIR=share/info
+		-DINSTALL_LIBDIR=$(get_libdir)
+		-DINSTALL_ELIBDIR=$(get_libdir)/mysql
+		-DINSTALL_MANDIR=share/man
+		-DINSTALL_MYSQLDATADIR=${EPREFIX}/var/lib/mysql
+		-DINSTALL_MYSQLSHAREDIR=share/mysql
+		-DINSTALL_MYSQLTESTDIR=share/mysql/mysql-test
+		-DINSTALL_PLUGINDIR=$(get_libdir)/mysql/plugin
+		-DINSTALL_SBINDIR=sbin
+		-DINSTALL_SCRIPTDIR=share/mysql/scripts
+		-DINSTALL_SQLBENCHDIR=share/mysql
+		-DINSTALL_SUPPORTFILESDIR=${EPREFIX}/usr/share/mysql
+		-DWITH_COMMENT="Gentoo Linux ${PF}"
+		-DWITH_UNIT_TESTS=$(usex test)
+		-DWITH_LIBEDIT=0
+		-DWITH_ZLIB=system
+		-DWITHOUT_LIBWRAP=1
+		-DENABLED_LOCAL_INFILE=1
+		-DMYSQL_UNIX_ADDR=${EPREFIX}/var/run/mysqld/mysqld.sock
+		-DINSTALL_UNIX_ADDRDIR=${EPREFIX}/var/run/mysqld/mysqld.sock
+		-DWITH_DEFAULT_COMPILER_OPTIONS=0
+		-DWITH_DEFAULT_FEATURE_SET=0
+		-DINSTALL_SYSTEMD_UNITDIR="$(systemd_get_unitdir)"
+	)
+
+	if in_iuse systemd ; then
+		mycmakeargs+=( -DWITH_SYSTEMD=$(usex systemd) )
+	fi
+
+	if use openssl || use libressl ; then
+		mycmakeargs+=( -DWITH_SSL=system )
+	else
+		mycmakeargs+=( -DWITH_SSL=bundled )
+	fi
+
+	if ! multilib_is_native_abi ; then
+		mycmakeargs+=( -DWITHOUT_TOOLS=1 )
+	fi
+
+	if in_iuse bindist ; then
+		# bfd.h is only used starting with 10.1 and can be controlled by NOT_FOR_DISTRIBUTION
+		if multilib_is_native_abi; then
+			mycmakeargs+=(
+				-DWITH_READLINE=$(usex bindist 1 0)
+				-DNOT_FOR_DISTRIBUTION=$(usex bindist 0 1)
+			)
+		else
+			mycmakeargs+=(
+				-DWITH_READLINE=1
+				-DNOT_FOR_DISTRIBUTION=0
+			)
+		fi
+	fi
+
+	### TODO: make this system but issues with UTF-8 prevent it
+	mycmakeargs+=( -DWITH_EDITLINE=bundled )
+
+	if multilib_is_native_abi && use server ; then
+		if [[ ( -n ${MYSQL_DEFAULT_CHARSET} ) && ( -n ${MYSQL_DEFAULT_COLLATION} ) ]]; then
+			ewarn "You are using a custom charset of ${MYSQL_DEFAULT_CHARSET}"
+			ewarn "and a collation of ${MYSQL_DEFAULT_COLLATION}."
+			ewarn "You MUST file bugs without these variables set."
+
+			mycmakeargs+=(
+				-DDEFAULT_CHARSET=${MYSQL_DEFAULT_CHARSET}
+				-DDEFAULT_COLLATION=${MYSQL_DEFAULT_COLLATION}
+			)
+
+		elif ! use latin1 ; then
+			mycmakeargs+=(
+				-DDEFAULT_CHARSET=utf8
+				-DDEFAULT_COLLATION=utf8_general_ci
+			)
+		else
+			mycmakeargs+=(
+				-DDEFAULT_CHARSET=latin1
+				-DDEFAULT_COLLATION=latin1_swedish_ci
+			)
+		fi
+		mycmakeargs+=(
+			-DEXTRA_CHARSETS=all
+			-DMYSQL_USER=mysql
+			-DMYSQL_UNIX_ADDR=${EPREFIX}/var/run/mysqld/mysqld.sock
+			-DDISABLE_SHARED=$(usex static YES NO)
+			-DWITH_DEBUG=$(usex debug)
+			-DWITH_EMBEDDED_SERVER=$(usex embedded)
+			-DWITH_PROFILING=$(usex profiling)
+		)
+
+		if use static; then
+			mycmakeargs+=( -DWITH_PIC=1 )
+		fi
+
+		if use jemalloc || use tcmalloc ; then
+			mycmakeargs+=( -DWITH_SAFEMALLOC=OFF )
+		fi
+
+		# Storage engines
+		mycmakeargs+=(
+			-DWITH_ARCHIVE_STORAGE_ENGINE=1
+			-DWITH_BLACKHOLE_STORAGE_ENGINE=1
+			-DWITH_CSV_STORAGE_ENGINE=1
+			-DWITH_HEAP_STORAGE_ENGINE=1
+			-DWITH_INNOBASE_STORAGE_ENGINE=1
+			-DWITH_MYISAMMRG_STORAGE_ENGINE=1
+			-DWITH_MYISAM_STORAGE_ENGINE=1
+			-DWITH_PARTITION_STORAGE_ENGINE=1
+		)
+
+		mycmakeargs+=( -DWITH_FEDERATED_STORAGE_ENGINE=$(usex extraengine) )
+	else
+		mycmakeargs+=(
+			-DWITHOUT_SERVER=1
+			-DWITHOUT_EMBEDDED_SERVER=1
+			-DEXTRA_CHARSETS=none
+			-DINSTALL_SQLBENCHDIR=
+		)
+	fi
+
+	# systemtap only works on native ABI  bug 530132
+	if multilib_is_native_abi; then
+		mycmakeargs+=( -DENABLE_DTRACE=$(usex systemtap)
+			"${MYSQL_CMAKE_NATIVE_DEFINES[@]}" )
+	else
+		mycmakeargs+=( -DENABLE_DTRACE=0
+			"${MYSQL_CMAKE_NONNATIVE_DEFINES[@]}" )
+	fi
+
+	mycmakeargs+=( "${MYSQL_CMAKE_EXTRA_DEFINES[@]}" )
+
+	cmake-utils_src_configure
+}
+
+mysql-multilib-r1_src_compile() {
+	local _cmake_args=( "${@}" )
+
+	multilib-minimal_src_compile
+}
+
+multilib_src_compile() {
+
+	cmake-utils_src_compile "${_cmake_args[@]}"
+}
+
+
+# @FUNCTION: mysql-multilib_src_install
+# @DESCRIPTION:
+# Install mysql.
+mysql-multilib-r1_src_install() {
+	# wrap the config script
+	MULTILIB_CHOST_TOOLS=( /usr/bin/mysql_config )
+
+	multilib-minimal_src_install
+}
+
+multilib_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	if multilib_is_native_abi; then
+		# Make sure the vars are correctly initialized
+		mysql_init_vars
+
+		cmake-utils_src_install
+
+		# Convenience links
+		einfo "Making Convenience links for mysqlcheck multi-call binary"
+		dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqlanalyze"
+		dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqlrepair"
+		dosym "/usr/bin/mysqlcheck" "/usr/bin/mysqloptimize"
+
+		# INSTALL_LAYOUT=STANDALONE causes cmake to create a /usr/data dir
+		if [[ -d "${ED}/usr/data" ]] ; then
+			rm -Rf "${ED}/usr/data" || die
+		fi
+
+		# Unless they explicitly specific USE=test, then do not install the
+		# testsuite. It DOES have a use to be installed, esp. when you want to do a
+		# validation of your database configuration after tuning it.
+		if ! use test ; then
+			rm -rf "${D}"/${MY_SHAREDSTATEDIR}/mysql-test
+		fi
+
+		# Configuration stuff
+		case ${MYSQL_PV_MAJOR} in
+			5.5) mysql_mycnf_version="5.5" ;;
+			5.[6-9]|6*|7*|8*|9*|10*) mysql_mycnf_version="5.6" ;;
+		esac
+		einfo "Building default my.cnf (${mysql_mycnf_version})"
+		insinto "${MY_SYSCONFDIR#${EPREFIX}}"
+		[[ -f "${S}/scripts/mysqlaccess.conf" ]] && doins "${S}"/scripts/mysqlaccess.conf
+		mycnf_src="my.cnf-${mysql_mycnf_version}"
+		sed -e "s!@DATADIR@!${MY_DATADIR}!g" \
+			"${FILESDIR}/${mycnf_src}" \
+			> "${TMPDIR}/my.cnf.ok" || die
+		use prefix && sed -i -r -e '/^user[[:space:]]*=[[:space:]]*mysql$/d' "${TMPDIR}/my.cnf.ok"
+		if use latin1 ; then
+			sed -i \
+				-e "/character-set/s|utf8|latin1|g" \
+				"${TMPDIR}/my.cnf.ok" || die
+		fi
+		eprefixify "${TMPDIR}/my.cnf.ok"
+		newins "${TMPDIR}/my.cnf.ok" my.cnf
+
+		if use server ; then
+			einfo "Creating initial directories"
+			# Empty directories ...
+			diropts "-m0750"
+			if [[ ${PREVIOUS_DATADIR} != "yes" ]] ; then
+				dodir "${MY_DATADIR#${EPREFIX}}"
+				keepdir "${MY_DATADIR#${EPREFIX}}"
+				chown -R mysql:mysql "${D}/${MY_DATADIR}"
+			fi
+
+			diropts "-m0755"
+			for folder in "${MY_LOGDIR#${EPREFIX}}" ; do
+				dodir "${folder}"
+				keepdir "${folder}"
+				chown -R mysql:mysql "${ED}/${folder}"
+			done
+
+			einfo "Including support files and sample configurations"
+			docinto "support-files"
+			for script in \
+				"${S}"/support-files/my-*.cnf.sh \
+				"${S}"/support-files/magic \
+				"${S}"/support-files/ndb-config-2-node.ini.sh
+			do
+				[[ -f $script ]] && dodoc "${script}"
+			done
+
+			docinto "scripts"
+			for script in "${S}"/scripts/mysql* ; do
+				[[ ( -f $script ) && ( ${script%.sh} == ${script} ) ]] && dodoc "${script}"
+			done
+		fi
+
+		#Remove mytop if perl is not selected
+		[[ -e "${ED}/usr/bin/mytop" ]] && ! use perl && rm -f "${ED}/usr/bin/mytop"
+
+		# Percona has decided to rename libmysqlclient to libperconaserverclient
+		# Use a symlink to preserve linkages for those who don't use mysql_config
+		local suffix
+		for suffix in ".so" "_r.so" ".a" "_r.a" ; do
+			if [[ -e "${ED}/usr/$(get_libdir)/libperconaserverclient${suffix}" ]] ; then
+				dosym libperconaserverclient${suffix} /usr/$(get_libdir)/libmysqlclient${suffix}
+			fi
+		done
+	else
+		cmake-utils_src_install
+		if [[ "${PN}" == "mariadb" ]] && use server ; then
+			insinto /usr/include/mysql/private
+			doins "${S}"/sql/*.h
+		fi
+	fi
+}
+
+# @FUNCTION: mysql-multilib_pkg_preinst
+# @DESCRIPTION:
+mysql-multilib-r1_pkg_preinst() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Here we need to see if the implementation switched client libraries
+	# We check if this is a new instance of the package and a client library already exists
+	local SHOW_ABI_MESSAGE
+        if [[ -z ${REPLACING_VERSIONS} && -e "${EROOT}usr/$(get_libdir)/libmysqlclient.so" ]] ; then
+                elog "Due to ABI changes when switching between different client libraries,"
+                elog "revdep-rebuild must find and rebuild all packages linking to libmysqlclient."
+                elog "Please run: revdep-rebuild --library libmysqlclient.so.${SUBSLOT:-18}"
+                ewarn "Failure to run revdep-rebuild may cause issues with other programs or libraries"
+        fi
+}
+
+# @FUNCTION: mysql-multilib-r1_pkg_postinst
+# @DESCRIPTION:
+# Run post-installation tasks:
+#   create the dir for logfiles if non-existant
+#   touch the logfiles and secure them
+#   install scripts
+#   issue required steps for optional features
+#   issue deprecation warnings
+mysql-multilib-r1_pkg_postinst() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Make sure the vars are correctly initialized
+	mysql_init_vars
+
+	# Check FEATURES="collision-protect" before removing this
+	[[ -d "${ROOT}${MY_LOGDIR}" ]] || install -d -m0750 -o mysql -g mysql "${ROOT}${MY_LOGDIR}"
+
+	# Secure the logfiles
+	touch "${ROOT}${MY_LOGDIR}"/mysql.{log,err}
+	chown mysql:mysql "${ROOT}${MY_LOGDIR}"/mysql*
+	chmod 0660 "${ROOT}${MY_LOGDIR}"/mysql*
+
+	# Minimal builds don't have the MySQL server
+	if use server ; then
+		docinto "support-files"
+		for script in \
+			support-files/my-*.cnf \
+			support-files/magic \
+			support-files/ndb-config-2-node.ini
+		do
+			[[ -f "${script}" ]] \
+			&& dodoc "${script}"
+		done
+
+		docinto "scripts"
+		for script in scripts/mysql* ; do
+			if [[ -f "${script}" && "${script%.sh}" == "${script}" ]]; then
+				dodoc "${script}"
+			fi
+		done
+
+		if use_if_iuse pam ; then
+			einfo
+			elog "This install includes the PAM authentication plugin."
+			elog "To activate and configure the PAM plugin, please read:"
+			if [[ ${PN} == "mariadb" ]] ; then
+				elog "https://mariadb.com/kb/en/mariadb/pam-authentication-plugin/"
+			elif [[ ${PN} == "percona-server" ]] ; then
+				elog "https://www.percona.com/doc/percona-server/5.6/management/pam_plugin.html"
+			fi
+			einfo
+		fi
+
+		if [[ -z "${REPLACING_VERSIONS}" ]] ; then
+			einfo
+			elog "You might want to run:"
+			elog "\"emerge --config =${CATEGORY}/${PF}\""
+			elog "if this is a new install."
+			elog
+			elog "If you are switching server implentations, you should run the"
+			elog "mysql_upgrade tool."
+			einfo
+		else
+			einfo
+			elog "If you are upgrading major versions, you should run the"
+			elog "mysql_upgrade tool."
+			einfo
+		fi
+
+		if use_if_iuse galera ; then
+			einfo
+			elog "Be sure to edit the my.cnf file to activate your cluster settings."
+			elog "This should be done after running \"emerge --config =${CATEGORY}/${PF}\""
+			elog "The first time the cluster is activated, you should add"
+			elog "--wsrep-new-cluster to the options in /etc/conf.d/mysql for one node."
+			elog "This option should then be removed for subsequent starts."
+			einfo
+		fi
+	fi
+}
+
+# @FUNCTION: mysql-multilib-r1_getopt
+# @DESCRIPTION:
+# Use my_print_defaults to extract specific config options
+mysql-multilib-r1_getopt() {
+	local mypd="${EROOT}"/usr/bin/my_print_defaults
+	section="$1"
+	flag="--${2}="
+	"${mypd}" $section | sed -n "/^${flag}/p"
+}
+
+# @FUNCTION: mysql-multilib-r1_getoptval
+# @DESCRIPTION:
+# Use my_print_defaults to extract specific config options
+mysql-multilib-r1_getoptval() {
+	local mypd="${EROOT}"/usr/bin/my_print_defaults
+	local section="$1"
+	local flag="--${2}="
+	local extra_options="${3}"
+	"${mypd}" $extra_options $section | sed -n "/^${flag}/s,${flag},,gp"
+}
+
+# @FUNCTION: mysql-multilib_pkg_config
+# @DESCRIPTION:
+# Configure mysql environment.
+mysql-multilib-r1_pkg_config() {
+
+	debug-print-function ${FUNCNAME} "$@"
+
+	local old_MY_DATADIR="${MY_DATADIR}"
+	local old_HOME="${HOME}"
+	# my_print_defaults needs to read stuff in $HOME/.my.cnf
+	export HOME=${EPREFIX}/root
+
+	# Make sure the vars are correctly initialized
+	mysql_init_vars
+
+	[[ -z "${MY_DATADIR}" ]] && die "Sorry, unable to find MY_DATADIR"
+	if ! built_with_use ${CATEGORY}/${PN} server ; then
+		die "Minimal builds do NOT include the MySQL server"
+	fi
+
+	if [[ ( -n "${MY_DATADIR}" ) && ( "${MY_DATADIR}" != "${old_MY_DATADIR}" ) ]]; then
+		local MY_DATADIR_s="${ROOT}/${MY_DATADIR}"
+		MY_DATADIR_s="${MY_DATADIR_s%%/}"
+		local old_MY_DATADIR_s="${ROOT}/${old_MY_DATADIR}"
+		old_MY_DATADIR_s="${old_MY_DATADIR_s%%/}"
+
+		if [[ ( -d "${old_MY_DATADIR_s}" ) && ( "${old_MY_DATADIR_s}" != / ) ]]; then
+			if [[ -d "${MY_DATADIR_s}" ]]; then
+				ewarn "Both ${old_MY_DATADIR_s} and ${MY_DATADIR_s} exist"
+				ewarn "Attempting to use ${MY_DATADIR_s} and preserving ${old_MY_DATADIR_s}"
+			else
+				elog "Moving MY_DATADIR from ${old_MY_DATADIR_s} to ${MY_DATADIR_s}"
+				mv --strip-trailing-slashes -T "${old_MY_DATADIR_s}" "${MY_DATADIR_s}" \
+				|| die "Moving MY_DATADIR failed"
+			fi
+		else
+			ewarn "Previous MY_DATADIR (${old_MY_DATADIR_s}) does not exist"
+			if [[ -d "${MY_DATADIR_s}" ]]; then
+				ewarn "Attempting to use ${MY_DATADIR_s}"
+			else
+				eerror "New MY_DATADIR (${MY_DATADIR_s}) does not exist"
+				die "Configuration Failed! Please reinstall ${CATEGORY}/${PN}"
+			fi
+		fi
+	fi
+
+	local pwd1="a"
+	local pwd2="b"
+	local maxtry=15
+
+	if [ -z "${MYSQL_ROOT_PASSWORD}" ]; then
+		MYSQL_ROOT_PASSWORD="$(mysql-multilib-r1_getoptval 'client mysql' password)"
+		# Sometimes --show is required to display passwords in some implementations of my_print_defaults
+		if [[ "${MYSQL_ROOT_PASSWORD}" == '*****' ]]; then
+			MYSQL_ROOT_PASSWORD="$(mysql-multilib-r1_getoptval 'client mysql' password --show)"
+		fi
+	fi
+	MYSQL_TMPDIR="$(mysql-multilib-r1_getoptval mysqld tmpdir)"
+	# These are dir+prefix
+	MYSQL_RELAY_LOG="$(mysql-multilib-r1_getoptval mysqld relay-log)"
+	MYSQL_RELAY_LOG=${MYSQL_RELAY_LOG%/*}
+	MYSQL_LOG_BIN="$(mysql-multilib-r1_getoptval mysqld log-bin)"
+	MYSQL_LOG_BIN=${MYSQL_LOG_BIN%/*}
+
+	if [[ ! -d "${ROOT}"/$MYSQL_TMPDIR ]]; then
+		einfo "Creating MySQL tmpdir $MYSQL_TMPDIR"
+		install -d -m 770 -o mysql -g mysql "${EROOT}"/$MYSQL_TMPDIR
+	fi
+	if [[ ! -d "${ROOT}"/$MYSQL_LOG_BIN ]]; then
+		einfo "Creating MySQL log-bin directory $MYSQL_LOG_BIN"
+		install -d -m 770 -o mysql -g mysql "${EROOT}"/$MYSQL_LOG_BIN
+	fi
+	if [[ ! -d "${EROOT}"/$MYSQL_RELAY_LOG ]]; then
+		einfo "Creating MySQL relay-log directory $MYSQL_RELAY_LOG"
+		install -d -m 770 -o mysql -g mysql "${EROOT}"/$MYSQL_RELAY_LOG
+	fi
+
+	if [[ -d "${ROOT}/${MY_DATADIR}/mysql" ]] ; then
+		ewarn "You have already a MySQL database in place."
+		ewarn "(${ROOT}/${MY_DATADIR}/*)"
+		ewarn "Please rename or delete it if you wish to replace it."
+		die "MySQL database already exists!"
+	fi
+
+	# Bug #213475 - MySQL _will_ object strenously if your machine is named
+	# localhost. Also causes weird failures.
+	[[ "${HOSTNAME}" == "localhost" ]] && die "Your machine must NOT be named localhost"
+
+	if [ -z "${MYSQL_ROOT_PASSWORD}" ]; then
+
+		einfo "Please provide a password for the mysql 'root' user now"
+		einfo "or through the ${HOME}/.my.cnf file."
+		ewarn "Avoid [\"'\\_%] characters in the password"
+		read -rsp "    >" pwd1 ; echo
+
+		einfo "Retype the password"
+		read -rsp "    >" pwd2 ; echo
+
+		if [[ "x$pwd1" != "x$pwd2" ]] ; then
+			die "Passwords are not the same"
+		fi
+		MYSQL_ROOT_PASSWORD="${pwd1}"
+		unset pwd1 pwd2
+	fi
+
+	local options
+	local sqltmp="$(emktemp)"
+
+	# Fix bug 446200. Don't reference host my.cnf, needs to come first,
+	# see http://bugs.mysql.com/bug.php?id=31312
+	use prefix && options="${options} '--defaults-file=${MY_SYSCONFDIR}/my.cnf'"
+
+	local help_tables="${ROOT}${MY_SHAREDSTATEDIR}/fill_help_tables.sql"
+	[[ -r "${help_tables}" ]] \
+	&& cp "${help_tables}" "${TMPDIR}/fill_help_tables.sql" \
+	|| touch "${TMPDIR}/fill_help_tables.sql"
+	help_tables="${TMPDIR}/fill_help_tables.sql"
+
+	# Figure out which options we need to disable to do the setup
+	local helpfile="${TMPDIR}/mysqld-help"
+	${EROOT}/usr/sbin/mysqld --verbose --help >"${helpfile}" 2>/dev/null
+	for opt in grant-tables host-cache name-resolve networking slave-start \
+		federated ssl log-bin relay-log slow-query-log external-locking \
+		ndbcluster log-slave-updates \
+		; do
+		optexp="--(skip-)?${opt}" optfull="--loose-skip-${opt}"
+		egrep -sq -- "${optexp}" "${helpfile}" && options="${options} ${optfull}"
+	done
+	# But some options changed names
+	egrep -sq external-locking "${helpfile}" && \
+	options="${options/skip-locking/skip-external-locking}"
+
+	use prefix || options="${options} --user=mysql"
+
+	einfo "Creating the mysql database and setting proper permissions on it ..."
+
+	# Now that /var/run is a tmpfs mount point, we need to ensure it exists before using it
+	PID_DIR="${EROOT}/var/run/mysqld"
+	if [[ ! -d "${PID_DIR}" ]]; then
+		mkdir -p "${PID_DIR}" || die "Could not create pid directory"
+		chown mysql:mysql "${PID_DIR}" || die "Could not set ownership on pid directory"
+		chmod 755 "${PID_DIR}" || die "Could not set permissions on pid directory"
+	fi
+
+	pushd "${TMPDIR}" &>/dev/null
+
+	# Filling timezones, see
+	# http://dev.mysql.com/doc/mysql/en/time-zone-support.html
+	"${EROOT}/usr/bin/mysql_tzinfo_to_sql" "${EROOT}/usr/share/zoneinfo" > "${sqltmp}" 2>/dev/null
+
+	local cmd
+	local initialize_options
+        if [[ ${PN} == "mysql" || ${PN} == "percona-server" ]] && mysql_version_is_at_least "5.7.6" ; then
+		# --initialize-insecure will not set root password
+		# --initialize would set a random one in the log which we don't need as we set it ourselves
+		cmd="${EROOT}usr/sbin/mysqld"
+		initialize_options="--initialize-insecure  '--init-file=${sqltmp}'"
+		sqltmp="" # the initialize will take care of it
+	else
+		cmd="${EROOT}usr/share/mysql/scripts/mysql_install_db"
+		[[ -f "${cmd}" ]] || cmd="${EROOT}usr/bin/mysql_install_db"
+		if [[ -r "${help_tables}" ]] ; then
+			cat "${help_tables}" >> "${sqltmp}"
+		fi
+	fi
+	cmd="'$cmd' '--basedir=${EPREFIX}/usr' ${options} '--datadir=${ROOT}/${MY_DATADIR}' '--tmpdir=${ROOT}/${MYSQL_TMPDIR}' ${initialize_options}"
+	einfo "Command: $cmd"
+	eval $cmd \
+		>"${TMPDIR}"/mysql_install_db.log 2>&1
+	if [ $? -ne 0 ]; then
+		grep -B5 -A999 -i "ERROR" "${TMPDIR}"/mysql_install_db.log 1>&2
+		die "Failed to initialize mysqld. Please review ${EPREFIX}/var/log/mysql/mysqld.err AND ${TMPDIR}/mysql_install_db.log"
+	fi
+	popd &>/dev/null
+	[[ -f "${ROOT}/${MY_DATADIR}/mysql/user.frm" ]] \
+	|| die "MySQL databases not installed"
+	chown -R mysql:mysql "${ROOT}/${MY_DATADIR}" 2>/dev/null
+	chmod 0750 "${ROOT}/${MY_DATADIR}" 2>/dev/null
+
+	local socket="${EROOT}/var/run/mysqld/mysqld${RANDOM}.sock"
+	local pidfile="${EROOT}/var/run/mysqld/mysqld${RANDOM}.pid"
+	local mysqld="${EROOT}/usr/sbin/mysqld \
+		${options} \
+		$(use prefix || echo --user=mysql) \
+		--log-warnings=0 \
+		--basedir=${EROOT}/usr \
+		--datadir=${ROOT}/${MY_DATADIR} \
+		--max_allowed_packet=8M \
+		--net_buffer_length=16K \
+		--default-storage-engine=MyISAM \
+		--socket=${socket} \
+		--pid-file=${pidfile}
+		--tmpdir=${ROOT}/${MYSQL_TMPDIR}"
+	#einfo "About to start mysqld: ${mysqld}"
+	ebegin "Starting mysqld"
+	einfo "Command ${mysqld}"
+	${mysqld} &
+	rc=$?
+	while ! [[ -S "${socket}" || "${maxtry}" -lt 1 ]] ; do
+		maxtry=$((${maxtry}-1))
+		echo -n "."
+		sleep 1
+	done
+	eend $rc
+
+	if ! [[ -S "${socket}" ]]; then
+		die "Completely failed to start up mysqld with: ${mysqld}"
+	fi
+
+	ebegin "Setting root password"
+	# Do this from memory, as we don't want clear text passwords in temp files
+	local sql="UPDATE mysql.user SET Password = PASSWORD('${MYSQL_ROOT_PASSWORD}') WHERE USER='root'"
+	"${EROOT}/usr/bin/mysql" \
+		--socket=${socket} \
+		-hlocalhost \
+		-e "${sql}"
+	eend $?
+
+	if [[ -n "${sqltmp}" ]] ; then
+		ebegin "Loading \"zoneinfo\", this step may require a few seconds"
+		"${EROOT}/usr/bin/mysql" \
+			--socket=${socket} \
+			-hlocalhost \
+			-uroot \
+			--password="${MYSQL_ROOT_PASSWORD}" \
+			mysql < "${sqltmp}"
+		rc=$?
+		eend $?
+		[[ $rc -ne 0 ]] && ewarn "Failed to load zoneinfo!"
+	fi
+
+	# Stop the server and cleanup
+	einfo "Stopping the server ..."
+	kill $(< "${pidfile}" )
+	rm -f "${sqltmp}"
+	wait %1
+	einfo "Done"
+}
+
+
+#
+# HELPER FUNCTIONS:
+#
+
+# @FUNCTION: mysql-multilib-r1_disable_test
+# @DESCRIPTION:
+# Helper function to disable specific tests.
+mysql-multilib-r1_disable_test() {
+
+	local rawtestname testname testsuite reason mysql_disabled_file mysql_disabled_dir
+	rawtestname="${1}" ; shift
+	reason="${@}"
+	ewarn "test '${rawtestname}' disabled: '${reason}'"
+
+	testsuite="${rawtestname/.*}"
+	testname="${rawtestname/*.}"
+	for mysql_disabled_file in \
+		${S}/mysql-test/disabled.def \
+		${S}/mysql-test/t/disabled.def ; do
+		[[ -f ${mysql_disabled_file} ]] && break
+	done
+	#mysql_disabled_file="${S}/mysql-test/t/disabled.def"
+	#einfo "rawtestname=${rawtestname} testname=${testname} testsuite=${testsuite}"
+	echo ${testname} : ${reason} >> "${mysql_disabled_file}"
+
+	if [[ ( -n ${testsuite} ) && ( ${testsuite} != "main" ) ]]; then
+		for mysql_disabled_file in \
+			${S}/mysql-test/suite/${testsuite}/disabled.def \
+			${S}/mysql-test/suite/${testsuite}/t/disabled.def \
+			FAILED ; do
+			[[ -f ${mysql_disabled_file} ]] && break
+		done
+		if [[ ${mysql_disabled_file} != "FAILED" ]]; then
+			echo "${testname} : ${reason}" >> "${mysql_disabled_file}"
+		else
+			for mysql_disabled_dir in \
+				${S}/mysql-test/suite/${testsuite} \
+				${S}/mysql-test/suite/${testsuite}/t \
+				FAILED ; do
+				[[ -d ${mysql_disabled_dir} ]] && break
+			done
+			if [[ ${mysql_disabled_dir} != "FAILED" ]]; then
+				echo "${testname} : ${reason}" >> "${mysql_disabled_dir}/disabled.def"
+			else
+				ewarn "Could not find testsuite disabled.def location for ${rawtestname}"
+			fi
+		fi
+	fi
+}
+
+# @FUNCTION: mysql-cmake_use_plugin
+# @DESCRIPTION:
+# Helper function to enable/disable plugins by use flags
+# cmake-utils_use_with is not enough as some references check WITH_ (0|1)
+# and some check WITHOUT_. Also, this can easily extend to non-storage plugins.
+mysql-cmake_use_plugin() {
+	[[ -z $2 ]] && die "mysql-cmake_use_plugin <USE flag> <flag name>"
+	if use_if_iuse $1 ; then
+		echo "-DWITH_$2=1 -DPLUGIN_$2=YES"
+	else
+		echo "-DWITHOUT_$2=1 -DWITH_$2=0 -DPLUGIN_$2=NO"
+	fi
+}