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+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: php-ext-source-r2.eclass
+# @MAINTAINER:
+# Gentoo PHP team <php-bugs@gentoo.org>
+# @AUTHOR:
+# Author: Tal Peer <coredumb@gentoo.org>
+# Author: Stuart Herbert <stuart@gentoo.org>
+# Author: Luca Longinotti <chtekk@gentoo.org>
+# Author: Jakub Moc <jakub@gentoo.org> (documentation)
+# Author: Ole Markus With <olemarkus@gentoo.org>
+# @BLURB: A unified interface for compiling and installing standalone PHP extensions.
+# @DESCRIPTION:
+# This eclass provides a unified interface for compiling and installing standalone
+# PHP extensions (modules).
+
+inherit autotools multilib
+
+EXPORT_FUNCTIONS src_unpack src_prepare src_configure src_compile src_install
+
+DEPEND=">=sys-devel/m4-1.4.3
+		>=sys-devel/libtool-1.5.18"
+RDEPEND=""
+
+# Because of USE deps, we require at least EAPI 2
+case ${EAPI} in
+	4|5) ;;
+	*)
+		die "php-ext-source-r2 is not compatible with EAPI=${EAPI}"
+esac
+
+# @ECLASS-VARIABLE: PHP_EXT_NAME
+# @REQUIRED
+# @DESCRIPTION:
+# The extension name. This must be set, otherwise the eclass dies.
+# Only automagically set by php-ext-pecl-r2.eclass, so unless your ebuild
+# inherits that eclass, you must set this manually before inherit.
+[[ -z "${PHP_EXT_NAME}" ]] && die "No module name specified for the php-ext-source-r2 eclass"
+
+# @ECLASS-VARIABLE: PHP_EXT_INI
+# @DESCRIPTION:
+# Controls whether or not to add a line to php.ini for the extension.
+# Defaults to "yes" and should not be changed in most cases.
+[[ -z "${PHP_EXT_INI}" ]] && PHP_EXT_INI="yes"
+
+# @ECLASS-VARIABLE: PHP_EXT_ZENDEXT
+# @DESCRIPTION:
+# Controls whether the extension is a ZendEngine extension or not.
+# Defaults to "no" and if you don't know what is it, you don't need it.
+[[ -z "${PHP_EXT_ZENDEXT}" ]] && PHP_EXT_ZENDEXT="no"
+
+# @ECLASS-VARIABLE: USE_PHP
+# @REQUIRED
+# @DESCRIPTION:
+# Lists the PHP slots compatibile the extension is compatibile with
+# Example:
+# @CODE
+# USE_PHP="php5-5 php5-6"
+# @CODE
+[[ -z "${USE_PHP}" ]] && die "USE_PHP is not set for the php-ext-source-r2 eclass"
+
+# @ECLASS-VARIABLE: PHP_EXT_OPTIONAL_USE
+# @DESCRIPTION:
+# If set, this is the USE flag that the PHP dependencies are behind
+# Most commonly set as PHP_EXT_OPTIONAL_USE=php to get the dependencies behind
+# USE=php.
+
+# @ECLASS-VARIABLE: PHP_EXT_S
+# @DESCRIPTION:
+# The relative location of the temporary build directory for the PHP extension within
+# the source package. This is useful for packages that bundle the PHP extension.
+# Defaults to ${S}
+[[ -z "${PHP_EXT_S}" ]] && PHP_EXT_S="${S}"
+
+#Make sure at least one target is installed.
+REQUIRED_USE="${PHP_EXT_OPTIONAL_USE}${PHP_EXT_OPTIONAL_USE:+? ( }|| ( "
+for target in ${USE_PHP}; do
+	IUSE="${IUSE} php_targets_${target}"
+	target=${target/+}
+	REQUIRED_USE+="php_targets_${target} "
+	slot=${target/php}
+	slot=${slot/-/.}
+	PHPDEPEND="${PHPDEPEND}
+	php_targets_${target}? ( dev-lang/php:${slot} )"
+done
+REQUIRED_USE+=") ${PHP_EXT_OPTIONAL_USE:+ )}"
+
+RDEPEND="${RDEPEND}
+	${PHP_EXT_OPTIONAL_USE}${PHP_EXT_OPTIONAL_USE:+? ( }
+	${PHPDEPEND}
+	${PHP_EXT_OPTIONAL_USE:+ )}"
+
+DEPEND="${DEPEND}
+	${PHP_EXT_OPTIONAL_USE}${PHP_EXT_OPTIONAL_USE:+? ( }
+	${PHPDEPEND}
+	${PHP_EXT_OPTIONAL_USE:+ )}
+"
+
+# @FUNCTION: php-ext-source-r2_src_unpack
+# @DESCRIPTION:
+# runs standard src_unpack + _phpize
+
+# @ECLASS-VARIABLE: PHP_EXT_SKIP_PHPIZE
+# @DESCRIPTION:
+# phpize will be run by default for all ebuilds that use
+# php-ext-source-r2_src_unpack
+# Set PHP_EXT_SKIP_PHPIZE="yes" in your ebuild if you do not want to run phpize.
+
+php-ext-source-r2_src_unpack() {
+	unpack ${A}
+	local slot orig_s="${PHP_EXT_S}"
+	for slot in $(php_get_slots); do
+		cp -r "${orig_s}" "${WORKDIR}/${slot}" || die "Failed to copy source ${orig_s} to PHP target directory"
+	done
+}
+
+php-ext-source-r2_src_prepare() {
+	local slot orig_s="${PHP_EXT_S}"
+	for slot in $(php_get_slots); do
+		php_init_slot_env ${slot}
+		php-ext-source-r2_phpize
+	done
+}
+
+# @FUNCTION: php-ext-source-r2_phpize
+# @DESCRIPTION:
+# Runs phpize and autotools in addition to the standard src_unpack
+php-ext-source-r2_phpize() {
+	if [[ "${PHP_EXT_SKIP_PHPIZE}" != 'yes' ]] ; then
+		# Create configure out of config.m4. We use autotools_run_tool
+		# to avoid some warnings about WANT_AUTOCONF and
+		# WANT_AUTOMAKE (see bugs #329071 and #549268).
+		autotools_run_tool ${PHPIZE}
+		# force run of libtoolize and regeneration of related autotools
+		# files (bug 220519)
+		rm aclocal.m4
+		eautoreconf
+	fi
+}
+
+# @FUNCTION: php-ext-source-r2_src_configure
+# @DESCRIPTION:
+# Takes care of standard configure for PHP extensions (modules).
+
+# @ECLASS-VARIABLE: my_conf
+# @DESCRIPTION:
+# Set this in the ebuild to pass configure options to econf.
+
+php-ext-source-r2_src_configure() {
+	# net-snmp creates this file #385403
+	addpredict /usr/share/snmp/mibs/.index
+	addpredict /var/lib/net-snmp/mib_indexes
+
+	local slot
+	for slot in $(php_get_slots); do
+		php_init_slot_env ${slot}
+		# Set the correct config options
+		econf --with-php-config=${PHPCONFIG} ${my_conf}  || die "Unable to configure code to compile"
+	done
+}
+
+# @FUNCTION: php-ext-source-r2_src_compile
+# @DESCRIPTION:
+# Takes care of standard compile for PHP extensions (modules).
+php-ext-source-r2_src_compile() {
+	# net-snmp creates this file #324739
+	addpredict /usr/share/snmp/mibs/.index
+	addpredict /var/lib/net-snmp/mib_indexes
+
+	# shm extension createss a semaphore file #173574
+	addpredict /session_mm_cli0.sem
+	local slot
+	for slot in $(php_get_slots); do
+		php_init_slot_env ${slot}
+		emake || die "Unable to make code"
+
+	done
+}
+
+# @FUNCTION: php-ext-source-r2_src_install
+# @DESCRIPTION:
+# Takes care of standard install for PHP extensions (modules).
+
+# @ECLASS-VARIABLE: DOCS
+# @DESCRIPTION:
+# Set in ebuild if you wish to install additional, package-specific documentation.
+php-ext-source-r2_src_install() {
+	local slot
+	for slot in $(php_get_slots); do
+		php_init_slot_env ${slot}
+
+		# Let's put the default module away. Strip $EPREFIX from
+		# $EXT_DIR before calling newins (which handles EPREFIX itself).
+		insinto "${EXT_DIR#$EPREFIX}"
+		newins "modules/${PHP_EXT_NAME}.so" "${PHP_EXT_NAME}.so" || die "Unable to install extension"
+
+		local doc
+		for doc in ${DOCS} ; do
+			[[ -s ${doc} ]] && dodoc ${doc}
+		done
+
+		INSTALL_ROOT="${D}" emake install-headers
+	done
+	php-ext-source-r2_createinifiles
+}
+
+
+php_get_slots() {
+	local s slot
+	for slot in ${USE_PHP}; do
+		use php_targets_${slot} && s+=" ${slot/-/.}"
+	done
+	echo $s
+}
+
+php_init_slot_env() {
+	libdir=$(get_libdir)
+
+	PHPIZE="${EPREFIX}/usr/${libdir}/${1}/bin/phpize"
+	PHPCONFIG="${EPREFIX}/usr/${libdir}/${1}/bin/php-config"
+	PHPCLI="${EPREFIX}/usr/${libdir}/${1}/bin/php"
+	PHPCGI="${EPREFIX}/usr/${libdir}/${1}/bin/php-cgi"
+	PHP_PKG="$(best_version =dev-lang/php-${1:3}*)"
+	PHPPREFIX="${EPREFIX}/usr/${libdir}/${slot}"
+	EXT_DIR="$(${PHPCONFIG} --extension-dir 2>/dev/null)"
+	PHP_CURRENTSLOT=${1:3}
+
+	PHP_EXT_S="${WORKDIR}/${1}"
+	cd "${PHP_EXT_S}"
+}
+
+php-ext-source-r2_buildinilist() {
+	# Work out the list of <ext>.ini files to edit/add to
+	if [[ -z "${PHPSAPILIST}" ]] ; then
+		PHPSAPILIST="apache2 cli cgi fpm embed phpdbg"
+	fi
+
+	PHPINIFILELIST=""
+	local x
+	for x in ${PHPSAPILIST} ; do
+		if [[ -f "${EPREFIX}/etc/php/${x}-${1}/php.ini" ]] ; then
+			PHPINIFILELIST="${PHPINIFILELIST} etc/php/${x}-${1}/ext/${PHP_EXT_NAME}.ini"
+		fi
+	done
+	PHPFULLINIFILELIST="${PHPFULLINIFILELIST} ${PHPINIFILELIST}"
+}
+
+# @FUNCTION: php-ext-source-r2_createinifiles
+# @DESCRIPTION:
+# Builds ini files for every enabled slot and SAPI
+php-ext-source-r2_createinifiles() {
+	local slot
+	for slot in $(php_get_slots); do
+		php_init_slot_env ${slot}
+		# Pull in the PHP settings
+
+		# Build the list of <ext>.ini files to edit/add to
+		php-ext-source-r2_buildinilist ${slot}
+
+
+		# Add the needed lines to the <ext>.ini files
+		local file
+		if [[ "${PHP_EXT_INI}" = "yes" ]] ; then
+			for file in ${PHPINIFILELIST}; do
+				php-ext-source-r2_addextension "${PHP_EXT_NAME}.so" "${file}"
+			done
+		fi
+
+		# Symlink the <ext>.ini files from ext/ to ext-active/
+		local inifile
+		for inifile in ${PHPINIFILELIST} ; do
+			if [[ -n "${PHP_EXT_INIFILE}" ]]; then
+				cat "${FILESDIR}/${PHP_EXT_INIFILE}" >> "${ED}/${inifile}"
+				einfo "Added content of ${FILESDIR}/${PHP_EXT_INIFILE} to ${inifile}"
+			fi
+			inidir="${inifile/${PHP_EXT_NAME}.ini/}"
+			inidir="${inidir/ext/ext-active}"
+			dodir "/${inidir}"
+			dosym "/${inifile}" "/${inifile/ext/ext-active}"
+		done
+
+		# Add support for installing PHP files into a version dependant directory
+		PHP_EXT_SHARED_DIR="${EPREFIX}/usr/share/php/${PHP_EXT_NAME}"
+	done
+}
+
+php-ext-source-r2_addextension() {
+	if [[ "${PHP_EXT_ZENDEXT}" = "yes" ]] ; then
+		# We need the full path for ZendEngine extensions
+		# and we need to check for debugging enabled!
+		if has_version "dev-lang/php:${PHP_CURRENTSLOT}[threads]" ; then
+			if has_version "dev-lang/php:${PHP_CURRENTSLOT}[debug]" ; then
+				ext_type="zend_extension_debug_ts"
+			else
+				ext_type="zend_extension_ts"
+			fi
+			ext_file="${EXT_DIR}/${1}"
+		else
+			if has_version "dev-lang/php:${PHP_CURRENTSLOT}[debug]"; then
+				ext_type="zend_extension_debug"
+			else
+				ext_type="zend_extension"
+			fi
+			ext_file="${EXT_DIR}/${1}"
+		fi
+
+		# php-5.3 unifies zend_extension loading and just requires the
+		# zend_extension keyword with no suffix
+		# TODO: drop previous code and this check once <php-5.3 support is
+		# discontinued
+		if has_version '>=dev-lang/php-5.3' ; then
+			ext_type="zend_extension"
+		fi
+	else
+		# We don't need the full path for normal extensions!
+		ext_type="extension"
+		ext_file="${1}"
+	fi
+
+	php-ext-source-r2_addtoinifile "${ext_type}" "${ext_file}" "${2}" "Extension added"
+}
+
+# $1 - Setting name
+# $2 - Setting value
+# $3 - File to add to
+# $4 - Sanitized text to output
+php-ext-source-r2_addtoinifile() {
+	local inifile="${WORKDIR}/${3}"
+	if [[ ! -d $(dirname ${inifile}) ]] ; then
+		mkdir -p $(dirname ${inifile})
+	fi
+
+	# Are we adding the name of a section?
+	if [[ ${1:0:1} == "[" ]] ; then
+		echo "${1}" >> "${inifile}"
+		my_added="${1}"
+	else
+		echo "${1}=${2}" >> "${inifile}"
+		my_added="${1}=${2}"
+	fi
+
+	if [[ -z "${4}" ]] ; then
+		einfo "Added '${my_added}' to /${3}"
+	else
+		einfo "${4} to /${3}"
+	fi
+
+	insinto /$(dirname ${3})
+	doins "${inifile}"
+}
+
+# @FUNCTION: php-ext-source-r2_addtoinifiles
+# @USAGE: <setting name> <setting value> [message to output]; or just [section name]
+# @DESCRIPTION:
+# Add value settings to php.ini file installed by the extension (module).
+# You can also add a [section], see examples below.
+#
+# @CODE
+# Add some settings for the extension:
+#
+# php-ext-source-r2_addtoinifiles "zend_optimizer.optimization_level" "15"
+# php-ext-source-r2_addtoinifiles "zend_optimizer.enable_loader" "0"
+# php-ext-source-r2_addtoinifiles "zend_optimizer.disable_licensing" "0"
+#
+# Adding values to a section in php.ini file installed by the extension:
+#
+# php-ext-source-r2_addtoinifiles "[Debugger]"
+# php-ext-source-r2_addtoinifiles "debugger.enabled" "on"
+# php-ext-source-r2_addtoinifiles "debugger.profiler_enabled" "on"
+# @CODE
+php-ext-source-r2_addtoinifiles() {
+	local x
+	for x in ${PHPFULLINIFILELIST} ; do
+		php-ext-source-r2_addtoinifile "${1}" "${2}" "${x}" "${3}"
+	done
+}