Mozilla eclass changes for new versions and to improve cross-builds

- mozcoreconf-v4 introduced to centralize toolchain and related build
settings, and improve configuration settings related to toolchain usage.

- mozconfig-v6.45 modified to inherit new mozcoreconf-v4

- mozconfig-v6.47 introduced, also inheriting mozcoreconf-v4

- removed old versions of mozconfig related to mozilla versions no longer
in repo

8 files changed, 387 insertions, 1240 deletions

diff --git a/eclass/mozconfig-v5.34.eclass b/eclass/mozconfig-v5.34.eclass
deleted file mode 100644
index aa739660f17e..000000000000
--- a/eclass/mozconfig-v5.34.eclass
+++ /dev/null
@@ -1,232 +0,0 @@
-# Copyright 1999-2014 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-#
-# @ECLASS: mozconfig-v5.33.eclass
-# @MAINTAINER:
-# mozilla team <mozilla@gentoo.org>
-# @BLURB: the new mozilla common configuration eclass for FF33 and newer, v5
-# @DESCRIPTION:
-# This eclass is used in mozilla ebuilds (firefox, thunderbird, seamonkey)
-# to provide a single common place for the common mozilla engine compoments.
-#
-# The eclass provides all common dependencies as well as common use flags.
-#
-# Some use flags which may be optional in particular mozilla packages can be
-# supported through setting eclass variables.
-#
-# This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
-# and so ebuilds inheriting this eclass do not need to inherit that.
-
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
-case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
-esac
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="wifi".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if necko-wifi support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_JIT
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="jit".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if optional jit support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug gstreamer pulseaudio selinux startup-notification system-cairo system-icu system-jpeg system-sqlite system-libvpx"
-
-# some notes on deps:
-# gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
-# media-libs/mesa needs to be 10.2 or above due to a bug with flash+vdpau
-
-RDEPEND=">=app-text/hunspell-1.2
-	dev-libs/atk
-	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
-	>=x11-libs/cairo-1.10[X]
-	>=x11-libs/gtk+-2.14:2
-	x11-libs/gdk-pixbuf
-	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.13:0=[apng]
-	>=media-libs/mesa-10.2:*
-	media-libs/fontconfig
-	>=media-libs/freetype-2.4.10
-	kernel_linux? ( media-libs/alsa-lib )
-	pulseaudio? ( media-sound/pulseaudio )
-	virtual/freedesktop-icon-theme
-	dbus? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72 )
-	startup-notification? ( >=x11-libs/startup-notification-0.8 )
-	>=dev-libs/glib-2.26:2
-	>=sys-libs/zlib-1.2.3
-	virtual/libffi
-	gstreamer? (
-		>=media-libs/gstreamer-1.2.3:1.0
-		>=media-libs/gst-plugins-base-1.2.3:1.0
-		>=media-libs/gst-plugins-good-1.2.3:1.0
-		>=media-plugins/gst-plugins-libav-1.1.0_pre20130128-r1:1.0
-	)
-	x11-libs/libX11
-	x11-libs/libXcomposite
-	x11-libs/libXdamage
-	x11-libs/libXext
-	x11-libs/libXfixes
-	x11-libs/libXrender
-	x11-libs/libXt
-	system-cairo? ( >=x11-libs/cairo-1.12[X] >=x11-libs/pixman-0.19.2 )
-	system-icu? ( >=dev-libs/icu-51.1:= )
-	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-sqlite? ( >=dev-db/sqlite-3.8.6:3[secure-delete,debug=] )
-	system-libvpx? ( =media-libs/libvpx-1.3.0*[postproc] )
-"
-
-if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then
-		IUSE+=" +wifi"
-	else
-		IUSE+=" wifi"
-	fi
-	RDEPEND+="
-	wifi? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72
-		net-wireless/wireless-tools )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_JIT} = "enabled" ]]; then
-		IUSE+=" +jit"
-	else
-		IUSE+=" jit"
-	fi
-fi
-
-DEPEND="app-arch/zip
-	app-arch/unzip
-	>=sys-devel/binutils-2.16.1
-	${RDEPEND}"
-
-RDEPEND+="
-	selinux? ( sec-policy/selinux-mozilla )"
-
-# @FUNCTION: mozconfig_config
-# @DESCRIPTION:
-# Set common configure options for mozilla packages.
-# Call this within src_configure() phase, after mozconfig_init
-#
-# Example:
-#
-# inherit mozconfig-v5.33
-#
-# src_configure() {
-# 	mozconfig_init
-# 	mozconfig_config
-#	# ... misc ebuild-unique settings via calls to
-#	# ... mozconfig_{annotate,use_with,use_enable}
-#	mozconfig_final
-# }
-
-mozconfig_config() {
-	# Migrated from mozcoreconf-2
-	mozconfig_annotate 'system_libs' \
-		--with-system-zlib \
-		--enable-pango \
-		--enable-svg \
-		--with-system-bz2
-
-	mozconfig_annotate '' --enable-default-toolkit=cairo-gtk2
-
-	if has bindist ${IUSE}; then
-		mozconfig_use_enable !bindist official-branding
-		if [[ ${PN} == firefox ]] && use bindist ; then
-			mozconfig_annotate '' --with-branding=browser/branding/aurora
-		fi
-	fi
-
-	mozconfig_use_enable debug
-	mozconfig_use_enable debug tests
-
-	if ! use debug ; then
-		mozconfig_annotate 'disabled by Gentoo' --disable-debug-symbols
-	else
-		mozconfig_annotate 'enabled by Gentoo' --enable-debug-symbols
-	fi
-
-	mozconfig_use_enable startup-notification
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]] ; then
-		# wifi pulls in dbus so manage both here
-		mozconfig_use_enable wifi necko-wifi
-		if use wifi && ! use dbus; then
-			echo "Enabling dbus support due to wifi request"
-			mozconfig_annotate 'dbus required by necko-wifi' --enable-dbus
-		else
-			mozconfig_use_enable dbus
-		fi
-	else
-		mozconfig_use_enable dbus
-		mozconfig_annotate 'disabled' --disable-necko-wifi
-	fi
-
-	# These are forced-on for webm support
-	mozconfig_annotate 'required' --enable-ogg
-	mozconfig_annotate 'required' --enable-wave
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-		mozconfig_use_enable jit ion
-		mozconfig_use_enable jit yarr-jit
-	fi
-
-	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
-	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate 'Gentoo default' --enable-system-hunspell
-	mozconfig_annotate '' --disable-gnomevfs
-	mozconfig_annotate '' --disable-gnomeui
-	mozconfig_annotate '' --enable-gio
-	mozconfig_annotate '' --disable-crashreporter
-	mozconfig_annotate 'Gentoo default' --with-system-png
-	mozconfig_annotate '' --enable-system-ffi
-	mozconfig_annotate 'Gentoo default to honor system linker' --disable-gold
-	mozconfig_annotate '' --disable-gconf
-
-	# Use jemalloc unless libc is not glibc >= 2.4
-	# at this time the minimum glibc in the tree is 2.9 so we should be safe.
-	if use elibc_glibc; then
-		# We must force-enable jemalloc 3 via .mozconfig
-		echo "export MOZ_JEMALLOC3=1" >> "${S}"/.mozconfig || die
-		mozconfig_annotate '' --enable-jemalloc
-		mozconfig_annotate '' --enable-replace-malloc
-	fi
-
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	if use gstreamer; then
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	else
-		mozconfig_annotate '' --disable-gstreamer
-	fi
-	mozconfig_use_enable pulseaudio
-
-	mozconfig_use_enable system-cairo
-	mozconfig_use_enable system-sqlite
-	mozconfig_use_with system-jpeg
-	mozconfig_use_with system-icu
-	mozconfig_use_enable system-icu intl-api
-	mozconfig_use_with system-libvpx
-}
diff --git a/eclass/mozconfig-v5.36.eclass b/eclass/mozconfig-v5.36.eclass
deleted file mode 100644
index d86fe55cc8ed..000000000000
--- a/eclass/mozconfig-v5.36.eclass
+++ /dev/null
@@ -1,232 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-#
-# @ECLASS: mozconfig-v5.33.eclass
-# @MAINTAINER:
-# mozilla team <mozilla@gentoo.org>
-# @BLURB: the new mozilla common configuration eclass for FF33 and newer, v5
-# @DESCRIPTION:
-# This eclass is used in mozilla ebuilds (firefox, thunderbird, seamonkey)
-# to provide a single common place for the common mozilla engine compoments.
-#
-# The eclass provides all common dependencies as well as common use flags.
-#
-# Some use flags which may be optional in particular mozilla packages can be
-# supported through setting eclass variables.
-#
-# This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
-# and so ebuilds inheriting this eclass do not need to inherit that.
-
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
-case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
-esac
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="wifi".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if necko-wifi support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_JIT
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="jit".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if optional jit support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug gstreamer pulseaudio selinux startup-notification system-cairo system-icu system-jpeg system-sqlite system-libvpx"
-
-# some notes on deps:
-# gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
-# media-libs/mesa needs to be 10.2 or above due to a bug with flash+vdpau
-
-RDEPEND=">=app-text/hunspell-1.2
-	dev-libs/atk
-	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
-	>=x11-libs/cairo-1.10[X]
-	>=x11-libs/gtk+-2.18:2
-	x11-libs/gdk-pixbuf
-	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.14:0=[apng]
-	>=media-libs/mesa-10.2:*
-	media-libs/fontconfig
-	>=media-libs/freetype-2.4.10
-	kernel_linux? ( media-libs/alsa-lib )
-	pulseaudio? ( media-sound/pulseaudio )
-	virtual/freedesktop-icon-theme
-	dbus? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72 )
-	startup-notification? ( >=x11-libs/startup-notification-0.8 )
-	>=dev-libs/glib-2.26:2
-	>=sys-libs/zlib-1.2.3
-	>=virtual/libffi-3.0.10
-	gstreamer? (
-		>=media-libs/gstreamer-1.2.3:1.0
-		>=media-libs/gst-plugins-base-1.2.3:1.0
-		>=media-libs/gst-plugins-good-1.2.3:1.0
-		>=media-plugins/gst-plugins-libav-1.1.0_pre20130128-r1:1.0
-	)
-	x11-libs/libX11
-	x11-libs/libXcomposite
-	x11-libs/libXdamage
-	x11-libs/libXext
-	x11-libs/libXfixes
-	x11-libs/libXrender
-	x11-libs/libXt
-	system-cairo? ( >=x11-libs/cairo-1.12[X] >=x11-libs/pixman-0.19.2 )
-	system-icu? ( >=dev-libs/icu-51.1:= )
-	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-sqlite? ( >=dev-db/sqlite-3.8.7.4:3[secure-delete,debug=] )
-	system-libvpx? ( >=media-libs/libvpx-1.3.0:0=[postproc] )
-"
-
-if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then
-		IUSE+=" +wifi"
-	else
-		IUSE+=" wifi"
-	fi
-	RDEPEND+="
-	wifi? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72
-		net-wireless/wireless-tools )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_JIT} = "enabled" ]]; then
-		IUSE+=" +jit"
-	else
-		IUSE+=" jit"
-	fi
-fi
-
-DEPEND="app-arch/zip
-	app-arch/unzip
-	>=sys-devel/binutils-2.16.1
-	${RDEPEND}"
-
-RDEPEND+="
-	selinux? ( sec-policy/selinux-mozilla )"
-
-# @FUNCTION: mozconfig_config
-# @DESCRIPTION:
-# Set common configure options for mozilla packages.
-# Call this within src_configure() phase, after mozconfig_init
-#
-# Example:
-#
-# inherit mozconfig-v5.33
-#
-# src_configure() {
-# 	mozconfig_init
-# 	mozconfig_config
-#	# ... misc ebuild-unique settings via calls to
-#	# ... mozconfig_{annotate,use_with,use_enable}
-#	mozconfig_final
-# }
-
-mozconfig_config() {
-	# Migrated from mozcoreconf-2
-	mozconfig_annotate 'system_libs' \
-		--with-system-zlib \
-		--enable-pango \
-		--enable-svg \
-		--with-system-bz2
-
-	mozconfig_annotate '' --enable-default-toolkit=cairo-gtk2
-
-	if has bindist ${IUSE}; then
-		mozconfig_use_enable !bindist official-branding
-		if [[ ${PN} == firefox ]] && use bindist ; then
-			mozconfig_annotate '' --with-branding=browser/branding/aurora
-		fi
-	fi
-
-	mozconfig_use_enable debug
-	mozconfig_use_enable debug tests
-
-	if ! use debug ; then
-		mozconfig_annotate 'disabled by Gentoo' --disable-debug-symbols
-	else
-		mozconfig_annotate 'enabled by Gentoo' --enable-debug-symbols
-	fi
-
-	mozconfig_use_enable startup-notification
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]] ; then
-		# wifi pulls in dbus so manage both here
-		mozconfig_use_enable wifi necko-wifi
-		if use wifi && ! use dbus; then
-			echo "Enabling dbus support due to wifi request"
-			mozconfig_annotate 'dbus required by necko-wifi' --enable-dbus
-		else
-			mozconfig_use_enable dbus
-		fi
-	else
-		mozconfig_use_enable dbus
-		mozconfig_annotate 'disabled' --disable-necko-wifi
-	fi
-
-	# These are forced-on for webm support
-	mozconfig_annotate 'required' --enable-ogg
-	mozconfig_annotate 'required' --enable-wave
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-		mozconfig_use_enable jit ion
-		mozconfig_use_enable jit yarr-jit
-	fi
-
-	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
-	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate 'Gentoo default' --enable-system-hunspell
-	mozconfig_annotate '' --disable-gnomevfs
-	mozconfig_annotate '' --disable-gnomeui
-	mozconfig_annotate '' --enable-gio
-	mozconfig_annotate '' --disable-crashreporter
-	mozconfig_annotate 'Gentoo default' --with-system-png
-	mozconfig_annotate '' --enable-system-ffi
-	mozconfig_annotate 'Gentoo default to honor system linker' --disable-gold
-	mozconfig_annotate '' --disable-gconf
-
-	# Use jemalloc unless libc is not glibc >= 2.4
-	# at this time the minimum glibc in the tree is 2.9 so we should be safe.
-	if use elibc_glibc; then
-		# We must force-enable jemalloc 3 via .mozconfig
-		echo "export MOZ_JEMALLOC3=1" >> "${S}"/.mozconfig || die
-		mozconfig_annotate '' --enable-jemalloc
-		mozconfig_annotate '' --enable-replace-malloc
-	fi
-
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	if use gstreamer; then
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	else
-		mozconfig_annotate '' --disable-gstreamer
-	fi
-	mozconfig_use_enable pulseaudio
-
-	mozconfig_use_enable system-cairo
-	mozconfig_use_enable system-sqlite
-	mozconfig_use_with system-jpeg
-	mozconfig_use_with system-icu
-	mozconfig_use_enable system-icu intl-api
-	mozconfig_use_with system-libvpx
-}
diff --git a/eclass/mozconfig-v5.38.eclass b/eclass/mozconfig-v5.38.eclass
deleted file mode 100644
index 2882b8bd1639..000000000000
--- a/eclass/mozconfig-v5.38.eclass
+++ /dev/null
@@ -1,231 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-#
-# @ECLASS: mozconfig-v5.33.eclass
-# @MAINTAINER:
-# mozilla team <mozilla@gentoo.org>
-# @BLURB: the new mozilla common configuration eclass for FF33 and newer, v5
-# @DESCRIPTION:
-# This eclass is used in mozilla ebuilds (firefox, thunderbird, seamonkey)
-# to provide a single common place for the common mozilla engine compoments.
-#
-# The eclass provides all common dependencies as well as common use flags.
-#
-# Some use flags which may be optional in particular mozilla packages can be
-# supported through setting eclass variables.
-#
-# This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
-# and so ebuilds inheriting this eclass do not need to inherit that.
-
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
-case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
-esac
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="wifi".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if necko-wifi support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_JIT
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="jit".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if optional jit support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug gstreamer +jemalloc3 pulseaudio selinux startup-notification system-cairo system-icu system-jpeg system-sqlite system-libvpx"
-
-# some notes on deps:
-# gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
-# media-libs/mesa needs to be 10.2 or above due to a bug with flash+vdpau
-
-RDEPEND=">=app-text/hunspell-1.2
-	dev-libs/atk
-	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
-	>=x11-libs/cairo-1.10[X]
-	>=x11-libs/gtk+-2.18:2
-	x11-libs/gdk-pixbuf
-	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.16:0=[apng]
-	>=media-libs/mesa-10.2:*
-	media-libs/fontconfig
-	>=media-libs/freetype-2.4.10
-	kernel_linux? ( media-libs/alsa-lib )
-	pulseaudio? ( media-sound/pulseaudio )
-	virtual/freedesktop-icon-theme
-	dbus? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72 )
-	startup-notification? ( >=x11-libs/startup-notification-0.8 )
-	>=dev-libs/glib-2.26:2
-	>=sys-libs/zlib-1.2.3
-	>=virtual/libffi-3.0.10
-	gstreamer? (
-		>=media-libs/gstreamer-1.2.3:1.0
-		>=media-libs/gst-plugins-base-1.2.3:1.0
-		>=media-libs/gst-plugins-good-1.2.3:1.0
-		>=media-plugins/gst-plugins-libav-1.1.0_pre20130128-r1:1.0
-	)
-	x11-libs/libX11
-	x11-libs/libXcomposite
-	x11-libs/libXdamage
-	x11-libs/libXext
-	x11-libs/libXfixes
-	x11-libs/libXrender
-	x11-libs/libXt
-	system-cairo? ( >=x11-libs/cairo-1.12[X] >=x11-libs/pixman-0.19.2 )
-	system-icu? ( >=dev-libs/icu-51.1:= )
-	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-sqlite? ( >=dev-db/sqlite-3.8.8.2:3[secure-delete,debug=] )
-	system-libvpx? ( >=media-libs/libvpx-1.3.0:0=[postproc] )
-"
-
-if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then
-		IUSE+=" +wifi"
-	else
-		IUSE+=" wifi"
-	fi
-	RDEPEND+="
-	wifi? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72
-		net-wireless/wireless-tools )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_JIT} = "enabled" ]]; then
-		IUSE+=" +jit"
-	else
-		IUSE+=" jit"
-	fi
-fi
-
-DEPEND="app-arch/zip
-	app-arch/unzip
-	>=sys-devel/binutils-2.16.1
-	${RDEPEND}"
-
-RDEPEND+="
-	selinux? ( sec-policy/selinux-mozilla )"
-
-# @FUNCTION: mozconfig_config
-# @DESCRIPTION:
-# Set common configure options for mozilla packages.
-# Call this within src_configure() phase, after mozconfig_init
-#
-# Example:
-#
-# inherit mozconfig-v5.33
-#
-# src_configure() {
-# 	mozconfig_init
-# 	mozconfig_config
-#	# ... misc ebuild-unique settings via calls to
-#	# ... mozconfig_{annotate,use_with,use_enable}
-#	mozconfig_final
-# }
-
-mozconfig_config() {
-	# Migrated from mozcoreconf-2
-	mozconfig_annotate 'system_libs' \
-		--with-system-zlib \
-		--enable-pango \
-		--enable-svg \
-		--with-system-bz2
-
-	mozconfig_annotate '' --enable-default-toolkit=cairo-gtk2
-
-	if has bindist ${IUSE}; then
-		mozconfig_use_enable !bindist official-branding
-		if [[ ${PN} == firefox ]] && use bindist ; then
-			mozconfig_annotate '' --with-branding=browser/branding/aurora
-		fi
-	fi
-
-	mozconfig_use_enable debug
-	mozconfig_use_enable debug tests
-
-	if ! use debug ; then
-		mozconfig_annotate 'disabled by Gentoo' --disable-debug-symbols
-	else
-		mozconfig_annotate 'enabled by Gentoo' --enable-debug-symbols
-	fi
-
-	mozconfig_use_enable startup-notification
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]] ; then
-		# wifi pulls in dbus so manage both here
-		mozconfig_use_enable wifi necko-wifi
-		if use wifi && ! use dbus; then
-			echo "Enabling dbus support due to wifi request"
-			mozconfig_annotate 'dbus required by necko-wifi' --enable-dbus
-		else
-			mozconfig_use_enable dbus
-		fi
-	else
-		mozconfig_use_enable dbus
-		mozconfig_annotate 'disabled' --disable-necko-wifi
-	fi
-
-	# These are forced-on for webm support
-	mozconfig_annotate 'required' --enable-ogg
-	mozconfig_annotate 'required' --enable-wave
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-		mozconfig_use_enable jit ion
-	fi
-
-	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
-	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate 'Gentoo default' --enable-system-hunspell
-	mozconfig_annotate '' --disable-gnomevfs
-	mozconfig_annotate '' --disable-gnomeui
-	mozconfig_annotate '' --enable-gio
-	mozconfig_annotate '' --disable-crashreporter
-	mozconfig_annotate 'Gentoo default' --with-system-png
-	mozconfig_annotate '' --enable-system-ffi
-	mozconfig_annotate 'Gentoo default to honor system linker' --disable-gold
-	mozconfig_annotate '' --disable-gconf
-
-	# Use jemalloc unless libc is not glibc >= 2.4
-	# at this time the minimum glibc in the tree is 2.9 so we should be safe.
-	if use elibc_glibc && use jemalloc3; then
-		# We must force-enable jemalloc 3 via .mozconfig
-		echo "export MOZ_JEMALLOC3=1" >> "${S}"/.mozconfig || die
-		mozconfig_annotate '' --enable-jemalloc
-		mozconfig_annotate '' --enable-replace-malloc
-	fi
-
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	if use gstreamer; then
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	else
-		mozconfig_annotate '' --disable-gstreamer
-	fi
-	mozconfig_use_enable pulseaudio
-
-	mozconfig_use_enable system-cairo
-	mozconfig_use_enable system-sqlite
-	mozconfig_use_with system-jpeg
-	mozconfig_use_with system-icu
-	mozconfig_use_enable system-icu intl-api
-	mozconfig_use_with system-libvpx
-}
diff --git a/eclass/mozconfig-v6.39.eclass b/eclass/mozconfig-v6.39.eclass
deleted file mode 100644
index 7f7d3533e395..000000000000
--- a/eclass/mozconfig-v6.39.eclass
+++ /dev/null
@@ -1,240 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-#
-# @ECLASS: mozconfig-v5.33.eclass
-# @MAINTAINER:
-# mozilla team <mozilla@gentoo.org>
-# @BLURB: the new mozilla common configuration eclass for FF33 and newer, v5
-# @DESCRIPTION:
-# This eclass is used in mozilla ebuilds (firefox, thunderbird, seamonkey)
-# to provide a single common place for the common mozilla engine compoments.
-#
-# The eclass provides all common dependencies as well as common use flags.
-#
-# Some use flags which may be optional in particular mozilla packages can be
-# supported through setting eclass variables.
-#
-# This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
-# and so ebuilds inheriting this eclass do not need to inherit that.
-
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
-case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
-esac
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="wifi".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if necko-wifi support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_JIT
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="jit".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if optional jit support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug gstreamer gstreamer-0 +jemalloc3 pulseaudio selinux startup-notification system-cairo system-icu system-jpeg system-sqlite system-libvpx"
-
-# some notes on deps:
-# gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
-# media-libs/mesa needs to be 10.2 or above due to a bug with flash+vdpau
-
-RDEPEND=">=app-text/hunspell-1.2
-	dev-libs/atk
-	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
-	>=x11-libs/cairo-1.10[X]
-	>=x11-libs/gtk+-2.18:2
-	x11-libs/gdk-pixbuf
-	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.16:0=[apng]
-	>=media-libs/mesa-10.2:*
-	media-libs/fontconfig
-	>=media-libs/freetype-2.4.10
-	kernel_linux? ( media-libs/alsa-lib )
-	pulseaudio? ( media-sound/pulseaudio )
-	virtual/freedesktop-icon-theme
-	dbus? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72 )
-	startup-notification? ( >=x11-libs/startup-notification-0.8 )
-	>=dev-libs/glib-2.26:2
-	>=sys-libs/zlib-1.2.3
-	>=virtual/libffi-3.0.10
-	gstreamer? (
-		>=media-libs/gstreamer-1.4.5:1.0
-		>=media-libs/gst-plugins-base-1.4.5:1.0
-		>=media-libs/gst-plugins-good-1.4.5:1.0
-		>=media-plugins/gst-plugins-libav-1.4.5:1.0
-	)
-	gstreamer-0? (
-		>=media-libs/gstreamer-0.10.25:0.10
-		media-plugins/gst-plugins-meta:0.10[ffmpeg]
-	)
-	x11-libs/libX11
-	x11-libs/libXcomposite
-	x11-libs/libXdamage
-	x11-libs/libXext
-	x11-libs/libXfixes
-	x11-libs/libXrender
-	x11-libs/libXt
-	system-cairo? ( >=x11-libs/cairo-1.12[X] >=x11-libs/pixman-0.19.2 )
-	system-icu? ( >=dev-libs/icu-51.1:= )
-	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-sqlite? ( >=dev-db/sqlite-3.8.9:3[secure-delete,debug=] )
-	system-libvpx? ( >=media-libs/libvpx-1.3.0:0=[postproc] )
-"
-
-if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then
-		IUSE+=" +wifi"
-	else
-		IUSE+=" wifi"
-	fi
-	RDEPEND+="
-	wifi? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72
-		net-wireless/wireless-tools )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_JIT} = "enabled" ]]; then
-		IUSE+=" +jit"
-	else
-		IUSE+=" jit"
-	fi
-fi
-
-DEPEND="app-arch/zip
-	app-arch/unzip
-	>=sys-devel/binutils-2.16.1
-	${RDEPEND}"
-
-RDEPEND+="
-	selinux? ( sec-policy/selinux-mozilla )"
-
-# only one of gstreamer and gstreamer-0 can be enabled at a time, so set REQUIRED_USE to signify this
-REQUIRED_USE="?? ( gstreamer gstreamer-0 )"
-
-# @FUNCTION: mozconfig_config
-# @DESCRIPTION:
-# Set common configure options for mozilla packages.
-# Call this within src_configure() phase, after mozconfig_init
-#
-# Example:
-#
-# inherit mozconfig-v5.33
-#
-# src_configure() {
-# 	mozconfig_init
-# 	mozconfig_config
-#	# ... misc ebuild-unique settings via calls to
-#	# ... mozconfig_{annotate,use_with,use_enable}
-#	mozconfig_final
-# }
-
-mozconfig_config() {
-	# Migrated from mozcoreconf-2
-	mozconfig_annotate 'system_libs' \
-		--with-system-zlib \
-		--enable-pango \
-		--enable-svg \
-		--with-system-bz2
-
-	mozconfig_annotate '' --enable-default-toolkit=cairo-gtk2
-
-	if has bindist ${IUSE}; then
-		mozconfig_use_enable !bindist official-branding
-		if [[ ${PN} == firefox ]] && use bindist ; then
-			mozconfig_annotate '' --with-branding=browser/branding/aurora
-		fi
-	fi
-
-	mozconfig_use_enable debug
-	mozconfig_use_enable debug tests
-
-	if ! use debug ; then
-		mozconfig_annotate 'disabled by Gentoo' --disable-debug-symbols
-	else
-		mozconfig_annotate 'enabled by Gentoo' --enable-debug-symbols
-	fi
-
-	mozconfig_use_enable startup-notification
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]] ; then
-		# wifi pulls in dbus so manage both here
-		mozconfig_use_enable wifi necko-wifi
-		if use wifi && ! use dbus; then
-			echo "Enabling dbus support due to wifi request"
-			mozconfig_annotate 'dbus required by necko-wifi' --enable-dbus
-		else
-			mozconfig_use_enable dbus
-		fi
-	else
-		mozconfig_use_enable dbus
-		mozconfig_annotate 'disabled' --disable-necko-wifi
-	fi
-
-	# These are forced-on for webm support
-	mozconfig_annotate 'required' --enable-ogg
-	mozconfig_annotate 'required' --enable-wave
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-		mozconfig_use_enable jit ion
-	fi
-
-	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
-	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate 'Gentoo default' --enable-system-hunspell
-	mozconfig_annotate '' --disable-gnomevfs
-	mozconfig_annotate '' --disable-gnomeui
-	mozconfig_annotate '' --enable-gio
-	mozconfig_annotate '' --disable-crashreporter
-	mozconfig_annotate 'Gentoo default' --with-system-png
-	mozconfig_annotate '' --enable-system-ffi
-	mozconfig_annotate 'Gentoo default to honor system linker' --disable-gold
-	mozconfig_annotate '' --disable-gconf
-
-	# Use jemalloc unless libc is not glibc >= 2.4
-	# at this time the minimum glibc in the tree is 2.9 so we should be safe.
-	if use elibc_glibc && use jemalloc3; then
-		# We must force-enable jemalloc 3 via .mozconfig
-		echo "export MOZ_JEMALLOC3=1" >> "${S}"/.mozconfig || die
-		mozconfig_annotate '' --enable-jemalloc
-		mozconfig_annotate '' --enable-replace-malloc
-	fi
-
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	if use gstreamer ; then
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	elif use gstreamer-0 ; then
-		mozconfig_annotate '+gstreamer-0' --enable-gstreamer=0.10
-	else
-		mozconfig_annotate '' --disable-gstreamer
-	fi
-	mozconfig_use_enable pulseaudio
-
-	mozconfig_use_enable system-cairo
-	mozconfig_use_enable system-sqlite
-	mozconfig_use_with system-jpeg
-	mozconfig_use_with system-icu
-	mozconfig_use_with system-icu intl-api
-	mozconfig_use_with system-libvpx
-}
diff --git a/eclass/mozconfig-v6.40.eclass b/eclass/mozconfig-v6.40.eclass
deleted file mode 100644
index f763a3400ee8..000000000000
--- a/eclass/mozconfig-v6.40.eclass
+++ /dev/null
@@ -1,263 +0,0 @@
-# Copyright 1999-2015 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-#
-# @ECLASS: mozconfig-v6.40.eclass
-# @MAINTAINER:
-# mozilla team <mozilla@gentoo.org>
-# @BLURB: the new mozilla common configuration eclass for FF33 and newer, v6
-# @DESCRIPTION:
-# This eclass is used in mozilla ebuilds (firefox, thunderbird, seamonkey)
-# to provide a single common place for the common mozilla engine compoments.
-#
-# The eclass provides all common dependencies as well as common use flags.
-#
-# Some use flags which may be optional in particular mozilla packages can be
-# supported through setting eclass variables.
-#
-# This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
-# and so ebuilds inheriting this eclass do not need to inherit that.
-
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
-case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
-esac
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="wifi".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if necko-wifi support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_JIT
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild needs to provide
-# optional necko-wifi support via IUSE="jit".  Currently this would include
-# ebuilds for firefox, and potentially seamonkey.
-#
-# Leave the variable UNSET if optional jit support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_GTK3
-# @DESCRIPTION:
-# Set this variable before the inherit line, when an ebuild can provide
-# optional gtk3 support via IUSE="gtk3".  Currently this would include
-# ebuilds for firefox, but thunderbird and seamonkey could follow in the future.
-#
-# Leave the variable UNSET if gtk3 support should not be available.
-# Set the variable to "enabled" if the use flag should be enabled by default.
-# Set the variable to any value if the use flag should exist but not be default-enabled.
-
-# use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug gstreamer gstreamer-0 +jemalloc3 pulseaudio selinux startup-notification system-cairo system-icu system-jpeg system-sqlite system-libvpx"
-
-# some notes on deps:
-# gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
-# media-libs/mesa needs to be 10.2 or above due to a bug with flash+vdpau
-
-RDEPEND=">=app-text/hunspell-1.2
-	dev-libs/atk
-	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
-	>=x11-libs/cairo-1.10[X]
-	>=x11-libs/gtk+-2.18:2
-	x11-libs/gdk-pixbuf
-	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.17:0=[apng]
-	>=media-libs/mesa-10.2:*
-	media-libs/fontconfig
-	>=media-libs/freetype-2.4.10
-	kernel_linux? ( media-libs/alsa-lib )
-	pulseaudio? ( media-sound/pulseaudio )
-	virtual/freedesktop-icon-theme
-	dbus? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72 )
-	startup-notification? ( >=x11-libs/startup-notification-0.8 )
-	>=dev-libs/glib-2.26:2
-	>=sys-libs/zlib-1.2.3
-	>=virtual/libffi-3.0.10
-	gstreamer? (
-		>=media-libs/gstreamer-1.4.5:1.0
-		>=media-libs/gst-plugins-base-1.4.5:1.0
-		>=media-libs/gst-plugins-good-1.4.5:1.0
-		>=media-plugins/gst-plugins-libav-1.4.5:1.0
-	)
-	gstreamer-0? (
-		>=media-libs/gstreamer-0.10.25:0.10
-		media-plugins/gst-plugins-meta:0.10[ffmpeg]
-	)
-	x11-libs/libX11
-	x11-libs/libXcomposite
-	x11-libs/libXdamage
-	x11-libs/libXext
-	x11-libs/libXfixes
-	x11-libs/libXrender
-	x11-libs/libXt
-	system-cairo? ( >=x11-libs/cairo-1.12[X] >=x11-libs/pixman-0.19.2 )
-	system-icu? ( >=dev-libs/icu-51.1:= )
-	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-sqlite? ( >=dev-db/sqlite-3.8.9:3[secure-delete,debug=] )
-	system-libvpx? ( >=media-libs/libvpx-1.3.0:0=[postproc] )
-"
-
-if [[ -n ${MOZCONFIG_OPTIONAL_GTK3} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_GTK3} = "enabled" ]]; then
-		IUSE+=" +gtk3"
-	else
-		IUSE+=" gtk3"
-	fi
-	RDEPEND+="
-	gtk3? ( >=x11-libs/gtk+-3.14.0:3 )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_WIFI} = "enabled" ]]; then
-		IUSE+=" +wifi"
-	else
-		IUSE+=" wifi"
-	fi
-	RDEPEND+="
-	wifi? ( >=sys-apps/dbus-0.60
-		>=dev-libs/dbus-glib-0.72
-		net-wireless/wireless-tools )"
-fi
-if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-	if [[ ${MOZCONFIG_OPTIONAL_JIT} = "enabled" ]]; then
-		IUSE+=" +jit"
-	else
-		IUSE+=" jit"
-	fi
-fi
-
-DEPEND="app-arch/zip
-	app-arch/unzip
-	>=sys-devel/binutils-2.16.1
-	${RDEPEND}"
-
-RDEPEND+="
-	selinux? ( sec-policy/selinux-mozilla )"
-
-# only one of gstreamer and gstreamer-0 can be enabled at a time, so set REQUIRED_USE to signify this
-REQUIRED_USE="?? ( gstreamer gstreamer-0 )"
-
-# @FUNCTION: mozconfig_config
-# @DESCRIPTION:
-# Set common configure options for mozilla packages.
-# Call this within src_configure() phase, after mozconfig_init
-#
-# Example:
-#
-# inherit mozconfig-v5.33
-#
-# src_configure() {
-# 	mozconfig_init
-# 	mozconfig_config
-#	# ... misc ebuild-unique settings via calls to
-#	# ... mozconfig_{annotate,use_with,use_enable}
-#	mozconfig_final
-# }
-
-mozconfig_config() {
-	# Migrated from mozcoreconf-2
-	mozconfig_annotate 'system_libs' \
-		--with-system-zlib \
-		--enable-pango \
-		--enable-svg \
-		--with-system-bz2
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_GTK3} ]]; then
-		mozconfig_annotate 'gtk3 use flag' --enable-default-toolkit=$(usex gtk3 cairo-gtk3 cairo-gtk2)
-	else
-		mozconfig_annotate '' --enable-default-toolkit=cairo-gtk2
-	fi
-
-	if has bindist ${IUSE}; then
-		mozconfig_use_enable !bindist official-branding
-		if [[ ${PN} == firefox ]] && use bindist ; then
-			mozconfig_annotate '' --with-branding=browser/branding/aurora
-		fi
-	fi
-
-	mozconfig_use_enable debug
-	mozconfig_use_enable debug tests
-
-	if ! use debug ; then
-		mozconfig_annotate 'disabled by Gentoo' --disable-debug-symbols
-	else
-		mozconfig_annotate 'enabled by Gentoo' --enable-debug-symbols
-	fi
-
-	mozconfig_use_enable startup-notification
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_WIFI} ]] ; then
-		# wifi pulls in dbus so manage both here
-		mozconfig_use_enable wifi necko-wifi
-		if use wifi && ! use dbus; then
-			echo "Enabling dbus support due to wifi request"
-			mozconfig_annotate 'dbus required by necko-wifi' --enable-dbus
-		else
-			mozconfig_use_enable dbus
-		fi
-	else
-		mozconfig_use_enable dbus
-		mozconfig_annotate 'disabled' --disable-necko-wifi
-	fi
-
-	# These are forced-on for webm support
-	mozconfig_annotate 'required' --enable-ogg
-	mozconfig_annotate 'required' --enable-wave
-
-	if [[ -n ${MOZCONFIG_OPTIONAL_JIT} ]]; then
-		mozconfig_use_enable jit ion
-	fi
-
-	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
-	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
-	mozconfig_annotate 'Gentoo default' --enable-system-hunspell
-	mozconfig_annotate '' --disable-gnomevfs
-	mozconfig_annotate '' --disable-gnomeui
-	mozconfig_annotate '' --enable-gio
-	mozconfig_annotate '' --disable-crashreporter
-	mozconfig_annotate 'Gentoo default' --with-system-png
-	mozconfig_annotate '' --enable-system-ffi
-	mozconfig_annotate 'Gentoo default to honor system linker' --disable-gold
-	mozconfig_annotate '' --disable-gconf
-
-	# Use jemalloc unless libc is not glibc >= 2.4
-	# at this time the minimum glibc in the tree is 2.9 so we should be safe.
-	if use elibc_glibc && use jemalloc3; then
-		# We must force-enable jemalloc 3 via .mozconfig
-		echo "export MOZ_JEMALLOC3=1" >> "${S}"/.mozconfig || die
-		mozconfig_annotate '' --enable-jemalloc
-		mozconfig_annotate '' --enable-replace-malloc
-	fi
-
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	if use gstreamer ; then
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	elif use gstreamer-0 ; then
-		mozconfig_annotate '+gstreamer-0' --enable-gstreamer=0.10
-	else
-		mozconfig_annotate '' --disable-gstreamer
-	fi
-	mozconfig_use_enable pulseaudio
-
-	mozconfig_use_enable system-cairo
-	mozconfig_use_enable system-sqlite
-	mozconfig_use_with system-jpeg
-	mozconfig_use_with system-icu
-	mozconfig_use_enable system-icu intl-api
-	mozconfig_use_with system-libvpx
-}
diff --git a/eclass/mozconfig-v6.45.eclass b/eclass/mozconfig-v6.45.eclass
index 7ff0f9d00ee2..e92f7693c198 100644
--- a/eclass/mozconfig-v6.45.eclass
+++ b/eclass/mozconfig-v6.45.eclass
@@ -27,7 +27,7 @@ case ${EAPI} in
 		;;
 esac
 
-inherit flag-o-matic toolchain-funcs mozcoreconf-v3
+inherit flag-o-matic toolchain-funcs mozcoreconf-v4
 
 # @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
 # @DESCRIPTION:
diff --git a/eclass/mozconfig-v6.44.eclass b/eclass/mozconfig-v6.47.eclass
index a833e9179f80..263f4c0eb643 100644
--- a/eclass/mozconfig-v6.44.eclass
+++ b/eclass/mozconfig-v6.47.eclass
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 # $Id$
 #
-# @ECLASS: mozconfig-v6.44.eclass
+# @ECLASS: mozconfig-v6.46.eclass
 # @MAINTAINER:
 # mozilla team <mozilla@gentoo.org>
 # @BLURB: the new mozilla common configuration eclass for FF33 and newer, v6
@@ -18,12 +18,17 @@
 # This eclass inherits mozconfig helper functions as defined in mozcoreconf-v3,
 # and so ebuilds inheriting this eclass do not need to inherit that.
 
-inherit multilib flag-o-matic toolchain-funcs mozcoreconf-v3
-
 case ${EAPI} in
-	0|1|2|3|4) die "EAPI=${EAPI} not supported"
+	0|1|2|3|4)
+		die "EAPI=${EAPI} not supported"
+		;;
+	5)
+		inherit multilib
+		;;
 esac
 
+inherit flag-o-matic toolchain-funcs mozcoreconf-v4
+
 # @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_WIFI
 # @DESCRIPTION:
 # Set this variable before the inherit line, when an ebuild needs to provide
@@ -54,6 +59,19 @@ esac
 # Set the variable to "enabled" if the use flag should be enabled by default.
 # Set the variable to any value if the use flag should exist but not be default-enabled.
 
+# @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_GTK2ONLY
+# @DESCRIPTION:
+# Set this variable before the inherit line, when an ebuild can provide
+# optional gtk2-only support via IUSE="gtk2".
+#
+# Note that this option conflicts directly with MOZCONFIG_OPTIONAL_GTK3, both
+# variables cannot be set at the same time and this variable will be ignored if
+# MOZCONFIG_OPTIONAL_GTK3 is set.
+#
+# Leave the variable UNSET if gtk2-only support should not be available.
+# Set the variable to "enabled" if the use flag should be enabled by default.
+# Set the variable to any value if the use flag should exist but not be default-enabled.
+
 # @ECLASS-VARIABLE: MOZCONFIG_OPTIONAL_QT5
 # @DESCRIPTION:
 # Set this variable before the inherit line, when an ebuild can provide
@@ -65,8 +83,8 @@ esac
 # Set the variable to any value if the use flag should exist but not be default-enabled.
 
 # use-flags common among all mozilla ebuilds
-IUSE="${IUSE} dbus debug ffmpeg +gstreamer gstreamer-0 +jemalloc3 neon pulseaudio selinux startup-notification system-cairo
-	system-icu system-jpeg system-libevent system-sqlite system-libvpx"
+IUSE="${IUSE} dbus debug +jemalloc3 neon pulseaudio selinux startup-notification system-cairo
+	system-harfbuzz system-icu system-jpeg system-libevent system-sqlite system-libvpx"
 
 # some notes on deps:
 # gtk:2 minimum is technically 2.10 but gio support (enabled by default) needs 2.14
@@ -75,12 +93,11 @@ IUSE="${IUSE} dbus debug ffmpeg +gstreamer gstreamer-0 +jemalloc3 neon pulseaudi
 RDEPEND=">=app-text/hunspell-1.2
 	dev-libs/atk
 	dev-libs/expat
-	>=dev-libs/libevent-1.4.7
 	>=x11-libs/cairo-1.10[X]
 	>=x11-libs/gtk+-2.18:2
 	x11-libs/gdk-pixbuf
 	>=x11-libs/pango-1.22.0
-	>=media-libs/libpng-1.6.17:0=[apng]
+	>=media-libs/libpng-1.6.21:0=[apng]
 	>=media-libs/mesa-10.2:*
 	media-libs/fontconfig
 	>=media-libs/freetype-2.4.10
@@ -93,17 +110,7 @@ RDEPEND=">=app-text/hunspell-1.2
 	>=dev-libs/glib-2.26:2
 	>=sys-libs/zlib-1.2.3
 	>=virtual/libffi-3.0.10
-	ffmpeg? ( virtual/ffmpeg )
-	gstreamer? (
-		>=media-libs/gstreamer-1.4.5:1.0
-		>=media-libs/gst-plugins-base-1.4.5:1.0
-		>=media-libs/gst-plugins-good-1.4.5:1.0
-		>=media-plugins/gst-plugins-libav-1.4.5:1.0
-	)
-	gstreamer-0? (
-		>=media-libs/gstreamer-0.10.25:0.10
-		media-plugins/gst-plugins-meta:0.10[ffmpeg]
-	)
+	virtual/ffmpeg
 	x11-libs/libX11
 	x11-libs/libXcomposite
 	x11-libs/libXdamage
@@ -114,12 +121,14 @@ RDEPEND=">=app-text/hunspell-1.2
 	system-cairo? ( >=x11-libs/cairo-1.12[X,xcb] >=x11-libs/pixman-0.19.2 )
 	system-icu? ( >=dev-libs/icu-51.1:= )
 	system-jpeg? ( >=media-libs/libjpeg-turbo-1.2.1 )
-	system-libevent? ( =dev-libs/libevent-2.0* )
-	system-sqlite? ( >=dev-db/sqlite-3.9.1:3[secure-delete,debug=] )
-	system-libvpx? ( >=media-libs/libvpx-1.3.0:0=[postproc] )
+	system-libevent? ( =dev-libs/libevent-2.0*:0= )
+	system-sqlite? ( >=dev-db/sqlite-3.11.0:3[secure-delete,debug=] )
+	system-libvpx? ( >=media-libs/libvpx-1.5.0:0=[postproc] )
+	system-harfbuzz? ( >=media-libs/harfbuzz-1.2.2:0=[graphite,icu] >=media-gfx/graphite2-1.3.8 )
 "
 
 if [[ -n ${MOZCONFIG_OPTIONAL_GTK3} ]]; then
+	MOZCONFIG_OPTIONAL_GTK2ONLY=
 	if [[ ${MOZCONFIG_OPTIONAL_GTK3} = "enabled" ]]; then
 		IUSE+=" +gtk3"
 	else
@@ -127,6 +136,14 @@ if [[ -n ${MOZCONFIG_OPTIONAL_GTK3} ]]; then
 	fi
 	RDEPEND+="
 	gtk3? ( >=x11-libs/gtk+-3.4.0:3 )"
+elif [[ -n ${MOZCONFIG_OPTIONAL_GTK2ONLY} ]]; then
+	if [[ ${MOZCONFIG_OPTIONAL_GTK2ONLY} = "enabled" ]]; then
+		IUSE+=" +gtk2"
+	else
+		IUSE+=" gtk2"
+	fi
+	RDEPEND+="
+	!gtk2? ( >=x11-libs/gtk+-3.4.0:3 )"
 fi
 if [[ -n ${MOZCONFIG_OPTIONAL_QT5} ]]; then
 	inherit qmake-utils
@@ -175,13 +192,18 @@ DEPEND="app-arch/zip
 RDEPEND+="
 	selinux? ( sec-policy/selinux-mozilla )"
 
-# only one of gstreamer and gstreamer-0 can be enabled at a time, so set REQUIRED_USE to signify this
-REQUIRED_USE="?? ( gstreamer gstreamer-0 )"
+# force system-icu if system-harfbuzz is selected, to avoid potential ABI issues
+REQUIRED_USE="
+	system-harfbuzz? ( system-icu )"
 
 # only one of gtk3 or qt5 should be permitted to be selected, since only one will be used.
 [[ -n ${MOZCONFIG_OPTIONAL_GTK3} ]] && [[ -n ${MOZCONFIG_OPTIONAL_QT5} ]] && \
 	REQUIRED_USE+=" ?? ( gtk3 qt5 )"
 
+# only one of gtk2 or qt5 should be permitted to be selected, since only one will be used.
+[[ -n ${MOZCONFIG_OPTIONAL_GTK2ONLY} ]] && [[ -n ${MOZCONFIG_OPTIONAL_QT5} ]] && \
+	REQUIRED_USE+=" ?? ( gtk2 qt5 )"
+
 # @FUNCTION: mozconfig_config
 # @DESCRIPTION:
 # Set common configure options for mozilla packages.
@@ -189,7 +211,7 @@ REQUIRED_USE="?? ( gstreamer gstreamer-0 )"
 #
 # Example:
 #
-# inherit mozconfig-v5.33
+# inherit mozconfig-v6.46
 #
 # src_configure() {
 # 	mozconfig_init
@@ -248,11 +270,11 @@ mozconfig_config() {
 	fi
 
 	# These are enabled by default in all mozilla applications
-	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${EPREFIX}"/usr
-	mozconfig_annotate '' --x-includes="${EPREFIX}"/usr/include --x-libraries="${EPREFIX}"/usr/$(get_libdir)
+	mozconfig_annotate '' --with-system-nspr --with-nspr-prefix="${SYSROOT}${EPREFIX}"/usr
+	mozconfig_annotate '' --with-system-nss --with-nss-prefix="${SYSROOT}${EPREFIX}"/usr
+	mozconfig_annotate '' --x-includes="${SYSROOT}${EPREFIX}"/usr/include --x-libraries="${SYSROOT}${EPREFIX}"/usr/$(get_libdir)
 	if use system-libevent; then
-		mozconfig_annotate '' --with-system-libevent="${EPREFIX}"/usr
+		mozconfig_annotate '' --with-system-libevent="${SYSROOT}${EPREFIX}"/usr
 	fi
 	mozconfig_annotate '' --prefix="${EPREFIX}"/usr
 	mozconfig_annotate '' --libdir="${EPREFIX}"/usr/$(get_libdir)
@@ -276,6 +298,13 @@ mozconfig_config() {
 			toolkit_comment="gtk3 use flag"
 		fi
 	fi
+	if [[ -n ${MOZCONFIG_OPTIONAL_GTK2ONLY} ]]; then
+		if ! use gtk2 ; then
+			toolkit="cairo-gtk3"
+		else
+			toolkit_comment="gtk2 use flag"
+		fi
+	fi
 	if [[ -n ${MOZCONFIG_OPTIONAL_QT5} ]]; then
 		if use qt5; then
 			toolkit="cairo-qt"
@@ -302,19 +331,15 @@ mozconfig_config() {
 		mozconfig_annotate '' --enable-replace-malloc
 	fi
 
-	mozconfig_annotate '' --target="${CTARGET:-${CHOST}}"
-	mozconfig_annotate '' --build="${CTARGET:-${CHOST}}"
-
-	use ffmpeg || mozconfig_annotate '-ffmpeg' --disable-ffmpeg
-	if use gstreamer ; then
-		use ffmpeg && einfo "${PN} will not use ffmpeg unless gstreamer:1.0 is not available at runtime"
-		mozconfig_annotate '+gstreamer' --enable-gstreamer=1.0
-	elif use gstreamer-0 ; then
-		use ffmpeg && einfo "${PN} will not use ffmpeg unless gstreamer:0.10 is not available at runtime"
-		mozconfig_annotate '+gstreamer-0' --enable-gstreamer=0.10
-	else
-		mozconfig_annotate '' --disable-gstreamer
+	# Instead of the standard --build= and --host=, mozilla uses --host instead
+	# of --build, and --target intstead of --host.
+	# Note, mozilla also has --build but it does not do what you think it does.
+	mozconfig_annotate '' --target="${CHOST}"
+	if [[ "${CBUILD:-${CHOST}}" != "${CHOST}" ]]; then
+		# set --host only when cross-compiling
+		mozconfig_annotate '' --host="${CBUILD:-${CHOST}}"
 	fi
+
 	mozconfig_use_enable pulseaudio
 
 	mozconfig_use_enable system-cairo
@@ -322,6 +347,8 @@ mozconfig_config() {
 	mozconfig_use_with system-jpeg
 	mozconfig_use_with system-icu
 	mozconfig_use_with system-libvpx
+	mozconfig_use_with system-harfbuzz
+	mozconfig_use_with system-harfbuzz system-graphite2
 
 	# Modifications to better support ARM, bug 553364
 	if use neon ; then
@@ -339,3 +366,44 @@ mozconfig_config() {
 		fi
 	fi
 }
+
+# @FUNCTION: mozconfig_install_prefs
+# @DESCRIPTION:
+# Set preferences into the prefs.js file specified as a parameter to
+# the function.  This sets both some common prefs to all mozilla
+# packages, and any prefs that may relate to the use flags administered
+# by mozconfig_config().
+#
+# Call this within src_install() phase, after copying the template
+# prefs file (if any) from ${FILESDIR}
+#
+# Example:
+#
+# inherit mozconfig-v6.46
+#
+# src_install() {
+# 	cp "${FILESDIR}"/gentoo-default-prefs.js \
+#	"${BUILD_OBJ_DIR}/dist/bin/browser/defaults/preferences/all-gentoo.js"  \
+#	|| die
+#
+# 	mozconfig_install_prefs \
+#	"${BUILD_OBJ_DIR}/dist/bin/browser/defaults/preferences/all-gentoo.js"
+#
+#	...
+# }
+
+mozconfig_install_prefs() {
+	local prefs_file="${1}"
+
+	einfo "Adding prefs from mozconfig to ${prefs_file}"
+
+	# set dictionary path, to use system hunspell
+	echo "pref(\"spellchecker.dictionary_path\", \"${EPREFIX}/usr/share/myspell\");" \
+		>>"${prefs_file}" || die
+
+	# force the graphite pref if system-harfbuzz is enabled, since the pref cant disable it
+	if use system-harfbuzz ; then
+		echo "sticky_pref(\"gfx.font_rendering.graphite.enabled\",true);" \
+			>>"${prefs_file}" || die
+	fi
+}
diff --git a/eclass/mozcoreconf-v4.eclass b/eclass/mozcoreconf-v4.eclass
new file mode 100644
index 000000000000..88f7b4b8fe84
--- /dev/null
+++ b/eclass/mozcoreconf-v4.eclass
@@ -0,0 +1,277 @@
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+#
+# @ECLASS: mozcoreconf.eclass
+# @MAINTAINER:
+# Mozilla team <mozilla@gentoo.org>
+# @BLURB: core options and configuration functions for mozilla
+# @DESCRIPTION:
+#
+# inherit mozconfig-v5.* or above for mozilla configuration support
+
+# @ECLASS-VARIABLE: MOZILLA_FIVE_HOME
+# @DESCCRIPTION:
+# This is an eclass-generated variable that defines the rpath that the mozilla
+# product will be installed in.  Read-only
+
+if [[ ! ${_MOZCORECONF_V3} ]]; then
+
+PYTHON_COMPAT=( python2_7 )
+PYTHON_REQ_USE='ncurses,sqlite,ssl,threads'
+
+inherit multilib toolchain-funcs flag-o-matic python-any-r1 versionator
+
+IUSE="${IUSE} custom-cflags custom-optimization"
+
+DEPEND="virtual/pkgconfig
+	${PYTHON_DEPS}"
+
+# @FUNCTION: mozconfig_annotate
+# @DESCRIPTION:
+# add an annotated line to .mozconfig
+#
+# Example:
+# mozconfig_annotate "building on ultrasparc" --enable-js-ultrasparc
+# => ac_add_options --enable-js-ultrasparc # building on ultrasparc
+mozconfig_annotate() {
+	declare reason=$1 x ; shift
+	[[ $# -gt 0 ]] || die "mozconfig_annotate missing flags for ${reason}\!"
+	for x in ${*}; do
+		echo "ac_add_options ${x} # ${reason}" >>.mozconfig
+	done
+}
+
+# @FUNCTION: mozconfig_use_enable
+# @DESCRIPTION:
+# add a line to .mozconfig based on a USE-flag
+#
+# Example:
+# mozconfig_use_enable truetype freetype2
+# => ac_add_options --enable-freetype2 # +truetype
+mozconfig_use_enable() {
+	declare flag=$(use_enable "$@")
+	mozconfig_annotate "$(use $1 && echo +$1 || echo -$1)" "${flag}"
+}
+
+# @FUNCTION mozconfig_use_with
+# @DESCRIPTION
+# add a line to .mozconfig based on a USE-flag
+#
+# Example:
+# mozconfig_use_with kerberos gss-api /usr/$(get_libdir)
+# => ac_add_options --with-gss-api=/usr/lib # +kerberos
+mozconfig_use_with() {
+	declare flag=$(use_with "$@")
+	mozconfig_annotate "$(use $1 && echo +$1 || echo -$1)" "${flag}"
+}
+
+# @FUNCTION mozconfig_use_extension
+# @DESCRIPTION
+# enable or disable an extension based on a USE-flag
+#
+# Example:
+# mozconfig_use_extension gnome gnomevfs
+# => ac_add_options --enable-extensions=gnomevfs
+mozconfig_use_extension() {
+	declare minus=$(use $1 || echo -)
+	mozconfig_annotate "${minus:-+}$1" --enable-extensions=${minus}${2}
+}
+
+moz_pkgsetup() {
+	# Ensure we use C locale when building
+	export LANG="C"
+	export LC_ALL="C"
+	export LC_MESSAGES="C"
+	export LC_CTYPE="C"
+
+	# Ensure we use correct toolchain
+	tc-export CC CXX LD PKG_CONFIG
+
+	# Ensure that we have a sane build enviroment
+	export MOZILLA_CLIENT=1
+	export BUILD_OPT=1
+	export NO_STATIC_LIB=1
+	export USE_PTHREADS=1
+	export ALDFLAGS=${LDFLAGS}
+	# ensure MOZCONFIG is not defined
+	eval unset MOZCONFIG
+
+	# set MOZILLA_FIVE_HOME
+	export MOZILLA_FIVE_HOME="/usr/$(get_libdir)/${PN}"
+
+	# nested configure scripts in mozilla products generate unrecognized options
+	# false positives when toplevel configure passes downwards.
+	export QA_CONFIGURE_OPTIONS=".*"
+
+	if [[ $(gcc-major-version) -eq 3 ]]; then
+		ewarn "Unsupported compiler detected, DO NOT file bugs for"
+		ewarn "outdated compilers. Bugs opened with gcc-3 will be closed"
+		ewarn "invalid."
+	fi
+
+	python-any-r1_pkg_setup
+}
+
+# @FUNCTION: mozconfig_init
+# @DESCRIPTION:
+# Initialize mozilla configuration and populate with core settings.
+# This should be called in src_configure before any other mozconfig_* functions.
+mozconfig_init() {
+	declare enable_optimize pango_version myext x
+	declare XUL=$([[ ${PN} == xulrunner ]] && echo true || echo false)
+	declare FF=$([[ ${PN} == firefox ]] && echo true || echo false)
+	declare SM=$([[ ${PN} == seamonkey ]] && echo true || echo false)
+	declare TB=$([[ ${PN} == thunderbird ]] && echo true || echo false)
+
+	####################################
+	#
+	# Setup the initial .mozconfig
+	# See http://www.mozilla.org/build/configure-build.html
+	#
+	####################################
+
+	case ${PN} in
+		*xulrunner)
+			cp xulrunner/config/mozconfig .mozconfig \
+				|| die "cp xulrunner/config/mozconfig failed" ;;
+		*firefox)
+			cp browser/config/mozconfig .mozconfig \
+				|| die "cp browser/config/mozconfig failed" ;;
+		seamonkey)
+			# Must create the initial mozconfig to enable application
+			: >.mozconfig || die "initial mozconfig creation failed"
+			mozconfig_annotate "" --enable-application=suite ;;
+		*thunderbird)
+			# Must create the initial mozconfig to enable application
+			: >.mozconfig || die "initial mozconfig creation failed"
+			mozconfig_annotate "" --enable-application=mail ;;
+	esac
+
+	####################################
+	#
+	# CFLAGS setup and ARCH support
+	#
+	####################################
+
+	# Set optimization level
+	if [[ ${ARCH} == hppa ]]; then
+		mozconfig_annotate "more than -O0 causes a segfault on hppa" --enable-optimize=-O0
+	elif [[ ${ARCH} == x86 ]]; then
+		mozconfig_annotate "less then -O2 causes a segfault on x86" --enable-optimize=-O2
+	elif use custom-optimization || [[ ${ARCH} =~ (alpha|ia64) ]]; then
+		# Set optimization level based on CFLAGS
+		if is-flag -O0; then
+			mozconfig_annotate "from CFLAGS" --enable-optimize=-O0
+		elif [[ ${ARCH} == ppc ]] && has_version '>=sys-libs/glibc-2.8'; then
+			mozconfig_annotate "more than -O1 segfaults on ppc with glibc-2.8" --enable-optimize=-O1
+		elif is-flag -O3; then
+			mozconfig_annotate "from CFLAGS" --enable-optimize=-O3
+		elif is-flag -O1; then
+			mozconfig_annotate "from CFLAGS" --enable-optimize=-O1
+		elif is-flag -Os; then
+			mozconfig_annotate "from CFLAGS" --enable-optimize=-Os
+		else
+			mozconfig_annotate "Gentoo's default optimization" --enable-optimize=-O2
+		fi
+	else
+		# Enable Mozilla's default
+		mozconfig_annotate "mozilla default" --enable-optimize
+	fi
+
+	# Strip optimization so it does not end up in compile string
+	filter-flags '-O*'
+
+	# Strip over-aggressive CFLAGS
+	use custom-cflags || strip-flags
+
+	# Additional ARCH support
+	case "${ARCH}" in
+	alpha)
+		# Historically we have needed to add -fPIC manually for 64-bit.
+		# Additionally, alpha should *always* build with -mieee for correct math
+		# operation
+		append-flags -fPIC -mieee
+		;;
+
+	ia64)
+		# Historically we have needed to add this manually for 64-bit
+		append-flags -fPIC
+		;;
+
+	ppc64)
+		append-flags -fPIC -mminimal-toc
+		;;
+	esac
+
+	# Go a little faster; use less RAM
+	append-flags "$MAKEEDIT_FLAGS"
+
+	# Use the MOZILLA_FIVE_HOME for the rpath
+	append-ldflags -Wl,-rpath="${MOZILLA_FIVE_HOME}"
+	# Set MOZILLA_FIVE_HOME in mozconfig
+	mozconfig_annotate '' --with-default-mozilla-five-home=${MOZILLA_FIVE_HOME}
+
+	####################################
+	#
+	# mozconfig setup
+	#
+	####################################
+
+	mozconfig_annotate disable_update_strip \
+		--disable-pedantic \
+		--disable-updater \
+		--disable-strip \
+		--disable-install-strip \
+		--disable-installer \
+		--disable-strip-libs
+
+	if [[ ${PN} != seamonkey ]]; then
+		mozconfig_annotate basic_profile \
+			--disable-profilelocking \
+			--enable-single-profile \
+			--disable-profilesharing
+	fi
+
+	# Here is a strange one...
+	if is-flag '-mcpu=ultrasparc*' || is-flag '-mtune=ultrasparc*'; then
+		mozconfig_annotate "building on ultrasparc" --enable-js-ultrasparc
+	fi
+
+	# Currently --enable-elf-dynstr-gc only works for x86,
+	# thanks to Jason Wever <weeve@gentoo.org> for the fix.
+	if use x86 && [[ ${enable_optimize} != -O0 ]]; then
+		mozconfig_annotate "${ARCH} optimized build" --enable-elf-dynstr-gc
+	fi
+
+	# jemalloc won't build with older glibc
+	! has_version ">=sys-libs/glibc-2.4" && mozconfig_annotate "we have old glibc" --disable-jemalloc
+}
+
+# @FUNCTION: mozconfig_final
+# @DESCRIPTION:
+# Display a table describing all configuration options paired
+# with reasons, then clean up extensions list.
+# This should be called in src_configure at the end of all other mozconfig_* functions.
+mozconfig_final() {
+	declare ac opt hash reason
+	echo
+	echo "=========================================================="
+	echo "Building ${PF} with the following configuration"
+	grep ^ac_add_options .mozconfig | while read ac opt hash reason; do
+		[[ -z ${hash} || ${hash} == \# ]] \
+			|| die "error reading mozconfig: ${ac} ${opt} ${hash} ${reason}"
+		printf "    %-30s  %s\n" "${opt}" "${reason:-mozilla.org default}"
+	done
+	echo "=========================================================="
+	echo
+
+	# Resolve multiple --enable-extensions down to one
+	declare exts=$(sed -n 's/^ac_add_options --enable-extensions=\([^ ]*\).*/\1/p' \
+		.mozconfig | xargs)
+	sed -i '/^ac_add_options --enable-extensions/d' .mozconfig
+	echo "ac_add_options --enable-extensions=${exts// /,}" >> .mozconfig
+}
+
+_MOZCORECONF_V3=1
+fi