diff --git a/eclass/golang-common.eclass b/eclass/golang-common.eclass
new file mode 100644
index 00000000..4357ef55
--- /dev/null
+++ b/eclass/golang-common.eclass
@@ -0,0 +1,1034 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: golang-utils.eclass
+# @MAINTAINER:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @AUTHOR:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @BLURB: Base eclass for GoLang packages
+# @SUPPORTED_EAPIS: 7
+# @DESCRIPTION:
+# This eclass provides functionalities which are used by golang-single.eclass,
+# golang-live.eclass, and as well as from ebuilds.
+#
+# This eclass should not be inherited directly from an ebuild.
+# Instead, you should inherit golang-single or golang-live for GoLang packages.
+
+inherit eutils multiprocessing
+
+if [[ -z ${_GOLANG_BASE_ECLASS} ]]; then
+_GOLANG_BASE_ECLASS=1
+
+# Silences repoman warnings.
+case "${EAPI:-0}" in
+	7)
+		case "${GOLANG_PKG_DEPEND_ON_GO_SUBSLOT:-yes}" in
+			yes)
+				GO_DEPEND="dev-lang/go:0="
+				;;
+			*)
+				GO_DEPEND="dev-lang/go:*"
+				;;
+		esac
+		;;
+	*)
+		die "${ECLASS}: EAPI=${EAPI:-0} is not supported" ;;
+esac
+
+DEPEND+=" ${GO_DEPEND}"
+
+RESTRICT+=" mirror strip"
+
+QA_FLAGS_IGNORED="usr/bin/.*
+	usr/sbin/.*"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_NAME
+# @DESCRIPTION:
+# Sets the GoLang name for the generated package.
+# GOLANG_PKG_NAME="${PN}"
+GOLANG_PKG_NAME="${GOLANG_PKG_NAME:-${PN}}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_VERSION
+# @DESCRIPTION:
+# Sets the GoLang version for the generated package.
+# GOLANG_PKG_VERSION="${PV}"
+GOLANG_PKG_VERSION="${GOLANG_PKG_VERSION:-${PV/_pre/.pre}}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_IMPORTPATH
+# @DESCRIPTION:
+# Sets the remote import path for the generated package.
+# GOLANG_PKG_IMPORTPATH="github.com/captObvious/"
+GOLANG_PKG_IMPORTPATH="${GOLANG_PKG_IMPORTPATH:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_IMPORTPATH_ALIAS
+# @DESCRIPTION:
+# Sets an alias of the remote import path for the generated package.
+# GOLANG_PKG_IMPORTPATH_ALIAS="privaterepo.com/captObvious/"
+GOLANG_PKG_IMPORTPATH_ALIAS="${GOLANG_PKG_IMPORTPATH_ALIAS:=${GOLANG_PKG_IMPORTPATH}}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_ARCHIVEPREFIX
+# @DESCRIPTION:
+# Sets the archive prefix for the file URI of the package.
+# Most projects hosted on GitHub's mirrors provide archives with prefix as
+# 'v' or 'source-', other hosted services offer different archive formats.
+# This eclass defaults to an empty prefix.
+GOLANG_PKG_ARCHIVEPREFIX="${GOLANG_PKG_ARCHIVEPREFIX:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_ARCHIVESUFFIX
+# @DESCRIPTION:
+# Sets the archive suffix for the file URI of the package.
+# Most projects hosted on GitHub's mirrors provide archives with suffix as
+# '.tar.gz' or '.zip', other hosted services offer different archive formats.
+# This eclass defaults to '.tar.gz'.
+GOLANG_PKG_ARCHIVESUFFIX="${GOLANG_PKG_ARCHIVESUFFIX:=".tar.gz"}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_OUTPUT_NAME
+# @DESCRIPTION:
+# Specifies the output file name of the package.
+# If not set, it derives from the name of the package, such as $GOLANG_PKG_NAME.
+# This eclass defaults to $PN.
+GOLANG_PKG_OUTPUT_NAME="${GOLANG_PKG_OUTPUT_NAME:=${PN}}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_BUILDPATH
+# @DESCRIPTION:
+# Specifies a go source file to be compiled as a single main package.
+# This eclass defaults to an empty value.
+# This eclass defaults to "/..." when the user declares GOLANG_PKG_IS_MULTIPLE=1
+GOLANG_PKG_BUILDPATH="${GOLANG_PKG_BUILDPATH:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_INSTALLPATH
+# @DESCRIPTION:
+# Sets the root path into which a binary, or a list of binaries, will be
+# installed (e.x.: ${GOLANG_PKG_INSTALLPATH}/bin).
+# This eclass defaults to "/usr"
+GOLANG_PKG_INSTALLPATH="${GOLANG_PKG_INSTALLPATH:="/usr"}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_INSTALLSUFFIX
+# @DESCRIPTION:
+# Sets a suffix to use in the name of the package installation directory.
+# This eclass defaults to an empty install suffix.
+GOLANG_PKG_INSTALLSUFFIX="${GOLANG_PKG_INSTALLSUFFIX:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_IS_MULTIPLE
+# @DESCRIPTION:
+# Set to enable the building of multiple packages from a single import path.
+
+# @ECLASS-VARIABLE: GOLANG_PKG_HAVE_TEST
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set to enable the execution of automated testing.
+
+# @ECLASS-VARIABLE: GOLANG_PKG_HAVE_TEST_RACE
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set to enable the execution of automated testing with support for
+# data race detection.
+
+# @ECLASS-VARIABLE: GOLANG_PKG_USE_CGO
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set to enable the compilation of the package with CGO.
+
+# @ECLASS-VARIABLE: GOLANG_PKG_USE_GENERATE
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set to run commands described by directives within existing golang files.
+
+# @ECLASS-VARIABLE: GOLANG_PKG_DEPEND_ON_GO_SUBSLOT
+# @DESCRIPTION:
+# Set to ensure the package does depend on the dev-lang/go subslot value.
+# Possible values: {yes,no}
+# This eclass defaults to "no"
+GOLANG_PKG_DEPEND_ON_GO_SUBSLOT=${GOLANG_PKG_DEPEND_ON_GO_SUBSLOT:="no"}
+
+# @ECLASS-VARIABLE: GOLANG_PKG_LDFLAGS
+# @DESCRIPTION:
+# Sets the linker arguments to pass to 5l, 6l, or 8l.
+# This eclass defaults to an empty list.
+GOLANG_PKG_LDFLAGS="${GOLANG_PKG_LDFLAGS:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_TAGS
+# @DESCRIPTION:
+# Sets the list of build tags during the build.
+# This eclass defaults to an empty list.
+GOLANG_PKG_TAGS="${GOLANG_PKG_TAGS:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_VENDOR
+# @DESCRIPTION:
+# Sets additional standard Go workspaces to be appended to the environment
+# variable GOPATH, as described in http://golang.org/doc/code.html.
+# This eclass defaults to an empty list.
+GOLANG_PKG_VENDOR=()
+
+# @ECLASS-VARIABLE: GOLANG_PKG_STATIK
+# @DESCRIPTION:
+# Sets the arguments to pass to dev-go/statik.
+# This eclass defaults to an empty list.
+GOLANG_PKG_STATIK="${GOLANG_PKG_STATIK:-}"
+
+# @ECLASS-VARIABLE: GOLANG_PKG_USE_MODULES
+# @DESCRIPTION:
+# Set to enable the compilation of the package with Go modules support.
+
+
+# @ECLASS-VARIABLE: GO
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# The absolute path to the current GoLang interpreter.
+#
+# This variable is set automatically after calling golang_setup().
+#
+# Default value:
+# @CODE
+# /usr/bin/go
+# @CODE
+
+# @ECLASS-VARIABLE: EGO
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# The executable name of the current GoLang interpreter.
+#
+# This variable is set automatically after calling golang_setup().
+#
+# Default value:
+# @CODE
+# go
+# @CODE
+
+# @ECLASS-VARIABLE: PATCHES
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Array variable containing all the patches to be applied. This variable
+# is expected to be defined in the global scope of ebuilds. Make sure to
+# specify the full path. This variable is used in src_prepare phase.
+#
+# Example:
+# @CODE
+#	PATCHES=(
+#		"${FILESDIR}/mypatch.patch"
+#		"${FILESDIR}/mypatch2.patch"
+#	)
+# @CODE
+
+
+
+# Adds gccgo as a compile-time dependency when GOLANG_PKG_USE_CGO is set.
+#[[ -n ${GOLANG_PKG_USE_CGO} ]] && DEPEND+=" >=sys-devel/gcc-4.8.4[go]"
+
+# Adds dev-go/statik as a compile-time dependency when GOLANG_PKG_STATIK is set.
+[[ -n ${GOLANG_PKG_STATIK} ]] && DEPEND+=" dev-go/statik"
+
+# Validates GOLANG_PKG_IMPORTPATH.
+if [[ -z ${GOLANG_PKG_IMPORTPATH} ]]; then
+	eerror "The remote import path for this package has not been declared"
+	die "Mandatory variable GOLANG_PKG_IMPORTPATH is unset"
+fi
+
+# Forces a multiple package build when user specifies GOLANG_PKG_IS_MULTIPLE=1.
+if [[ -n ${GOLANG_PKG_IS_MULTIPLE} && -z ${GOLANG_PKG_BUILDPATH} ]]; then
+	GOLANG_PKG_BUILDPATH="/..."
+fi
+
+# Validates use of GOLANG_PKG_BUILDPATH combined with GOLANG_PKG_IS_MULTIPLE
+# FIX: makes sure user isn't overriding GOLANG_PKG_BUILDPATH with inane values.
+if [[ -n ${GOLANG_PKG_IS_MULTIPLE} && ${GOLANG_PKG_BUILDPATH##*/} != "..." ]]; then
+	ewarn "Ebuild ${CATEGORY}/${PF} specifies GOLANG_PKG_IS_MULTIPLE=1,"
+	ewarn "but then GOLANG_PKG_BUILDPATH is overridden with \"${GOLANG_PKG_BUILDPATH}\"."
+	ewarn "Please, fix it by appending \"/...\" to your GOLANG_PKG_BUILDPATH."
+	ewarn "If in doubt, remove GOLANG_PKG_BUILDPATH entirely."
+fi
+
+# Even though xz-utils are in @system, they must still be added to DEPEND; see
+# http://archives.gentoo.org/gentoo-dev/msg_a0d4833eb314d1be5d5802a3b710e0a4.xml
+if [[ ${GOLANG_PKG_ARCHIVESUFFIX/.*} == "xz" ]]; then
+	DEPEND+=" app-arch/xz-utils"
+fi
+
+# Defines common USE flags
+IUSE="${IUSE} debug pie"
+# Enables USE 'test' when required by GOLANG_PKG_HAVE_TEST.
+if [[ -n ${GOLANG_PKG_HAVE_TEST} ]]; then
+	IUSE+=" test"
+fi
+
+# Defines HOMEPAGE.
+[ -z "$HOMEPAGE" ] && HOMEPAGE="https://${GOLANG_PKG_IMPORTPATH}/${PN}"
+
+# Defines SOURCE directory.
+S="${WORKDIR}/gopath/src/${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}"
+
+
+# @FUNCTION: _factorize_dependency_entities
+# @INTERNAL
+# @DESCRIPTION:
+# Factorizes the dependency declaration in specific tokens such as the import
+# path, the import path alias, the host name, the author name, the project name,
+# and the revision tag.
+_factorize_dependency_entities() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	local -A dependency=()
+	local key_list=(importpathalias importpath host project_name author_name revision)
+
+	# Strips all the white spaces from the supplied argument.
+	local raw_dependency="${1//\ /}"
+
+	# Determines the alias of the import path (if present).
+	dependency[importpathalias]="${raw_dependency##*->}"
+
+	# Strips the import path alias from the supplied argument.
+	raw_dependency="${raw_dependency%%->*}"
+
+	# Determines the import path.
+	dependency[importpath]="${raw_dependency%:*}"
+
+	# When the importpath alias is not specified, then this eclass sets the
+	# alias as equal to the import path minus the project name.
+	if [[ "${raw_dependency}" == "${dependency[importpathalias]}" ]]; then
+		dependency[importpathalias]="${dependency[importpath]%/*}"
+	fi
+
+	# Determines the host.
+	dependency[host]="${dependency[importpath]%%/*}"
+
+	# Determines the project name.
+	dependency[project_name]="${dependency[importpath]##*/}"
+
+	# Determines the author name.
+	dependency[author_name]="${dependency[importpath]#*/}"
+	dependency[author_name]="${dependency[author_name]%/*}"
+
+	# Determines the revision.
+	dependency[revision]="${raw_dependency#*:}"
+
+	# Exports all the dependency tokens as an associated list.
+	for key in ${key_list[@]}; do
+		echo "${key} ${dependency[${key}]}"
+	done
+}
+
+
+# @FUNCTION: golang_setup
+# @DESCRIPTION:
+# Determines where is the GoLang implementation and then set-up the
+# GoLang build environment.
+golang_setup() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	# NOTE: Keep /usr/bin/go as index [0] and never overwrite it,
+	#       always append other binary paths after the index [0]
+	local GOLANG_BINS=(
+		/usr/bin/go
+		/usr/bin/gofmt
+	)
+
+	[[ -n ${GOLANG_PKG_STATIK} ]] && GOLANG_BINS+=(/usr/bin/statik)
+
+	# Reset GoLang environment variables
+	unset EGO
+	unset EGOFMT
+	unset ESTATIK
+	unset GO
+	unset GOPATH
+	unset GOBIN
+
+	# Determine is the GoLang interpreter is working
+	local IS_EXECUTABLE=1
+	for binary in "${GOLANG_BINS[@]}"; do
+		debug-print "${FUNCNAME}: Checking ... ${binary}"
+
+		[[ -x "${EPREFIX}/${binary}" ]] && continue
+		IS_EXECUTABLE=0
+		ewarn "It seems that the binary '${binary}' is not executable."
+	done
+
+	# dev-lang/go isn't installed or one of its binaries aren't executable.
+	# Either way, the Gentoo box is screwed; no need to set up the GoLang environment
+	[[ ${IS_EXECUTABLE} == 0 ]] && exit
+
+	# dev-lang/go is available and working.
+	# Exports GO/EGO/EGOFMT global variables.
+	export GO="${GOLANG_BINS[0]}"
+	export EGO="${GOLANG_BINS[0]##*/}"
+	export EGOFMT="${GOLANG_BINS[1]}"
+
+	# dev-go/statik is available and working.
+	# Exports ESTATIK global variable.
+	[[ -n ${GOLANG_PKG_STATIK} ]] && export ESTATIK="${GOLANG_BINS[2]##*/}"
+
+	debug-print "${FUNCNAME}: GO = ${GO}"
+	debug-print "${FUNCNAME}: EGO = ${EGO}"
+	debug-print "${FUNCNAME}: EGOFMT = ${EGOFMT}"
+	debug-print "${FUNCNAME}: ESTATIK = ${ESTATIK}"
+
+	# Determines go interpreter version.
+	GOLANG_VERSION="$( ${GO} version )"
+	GOLANG_VERSION="${GOLANG_VERSION/go\ version\ go}"
+	export GOLANG_VERSION="${GOLANG_VERSION%\ *}"
+	einfo "Found GoLang version: ${GOLANG_VERSION}"
+
+	# Determines statik interpreter version.
+	# TODO: add version detection when statik will provide a -version option.
+	if [[ -n ${GOLANG_PKG_STATIK} ]]; then
+		local STATIK_VERSION=""
+		einfo "Found statik version: ${STATIK_VERSION}"
+	fi
+
+	# Enable/Disable frame pointers
+    local GOEXPERIMENT="noframepointer"
+    use debug && GOEXPERIMENT="framepointer"
+
+	# Sets the build environment inside Portage's WORKDIR.
+	ebegin "Setting up GoLang build environment"
+
+		# Prepares CGO_ENABLED.
+		CGO_ENABLED=0
+		[[ -z ${GOLANG_PKG_USE_CGO} ]] || CGO_ENABLED=1
+		use pie && CGO_ENABLED=1 # PIE requires CGO
+
+		# Prepares gopath / gobin directories inside WORKDIR.
+		local _GOPATH="${WORKDIR}/gopath"
+		local _GOBIN="${WORKDIR}/gobin"
+		mkdir -p "${_GOBIN}" || die
+		mkdir -p "${_GOPATH}"/src || die
+
+		# Exports special env variable EGO_SRC.
+		export EGO_SRC="${_GOPATH}/src"
+
+		# Exports GoLang env variables.
+		export GOPATH="$_GOPATH"
+		export GOBIN="$_GOBIN"
+		export CGO_ENABLED
+		#export GOEXPERIMENT
+		#export GO15VENDOREXPERIMENT=0
+
+		GO111MODULE="off"
+		[[ -z ${GOLANG_PKG_USE_MODULES} ]] || GO111MODULE="on"
+		export GO111MODULE
+
+		debug-print "${FUNCNAME}: GOPATH = ${GOPATH}"
+		debug-print "${FUNCNAME}: GOBIN = ${GOBIN}"
+		debug-print "${FUNCNAME}: EGO_SRC = ${EGO_SRC}"
+		debug-print "${FUNCNAME}: CGO_ENABLED = ${CGO_ENABLED}"
+	eend
+}
+
+
+# @FUNCTION: golang-common_src_prepare
+# @DESCRIPTION:
+# Prepare source code.
+golang-common_src_prepare() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	pushd "${WORKDIR}" > /dev/null || die
+		einfo "Preparing GoLang build environment in ${GOPATH}/src"
+
+		# If the ebuild declares an importpath alias, then its path was
+		# already created during the src_unpack phase. That means the eclass
+		# needs to create the missing original import path (GOLANG_PKG_IMPORTPATH)
+		# as a simbolic link pointing to the alias.
+		if [[ "${GOLANG_PKG_IMPORTPATH}" != "${GOLANG_PKG_IMPORTPATH_ALIAS}" ]]; then
+
+			# If the ebuild declares a GOLANG_PKG_NAME different from PN, then
+			# the latter will be used as the simbolic link target.
+			local TARGET="${GOLANG_PKG_NAME}"
+			[[ "${PN}" != "${GOLANG_PKG_NAME}" ]] && TARGET="${PN}"
+
+			golang_fix_importpath_alias \
+				"${GOLANG_PKG_IMPORTPATH_ALIAS}/${TARGET}" \
+				"${GOLANG_PKG_IMPORTPATH}/${GOLANG_PKG_NAME}"
+		fi
+
+		# If the ebuild declares some GoLang dependencies, then they need to be
+		# correctly installed into the sand-boxed GoLang build environment which
+		# was set up automatically during src_unpack) phase.
+		if [[ ${#GOLANG_PKG_DEPENDENCIES[@]} -gt 0 ]]; then
+
+			for i in ${!GOLANG_PKG_DEPENDENCIES[@]} ; do
+
+				# Collects all the tokens of the dependency.
+				local -A DEPENDENCY=()
+				while read -r -d $'\n' key value; do
+					[[ -z ${key} ]] && continue
+					DEPENDENCY[$key]="${value}"
+				done <<-EOF
+					$( _factorize_dependency_entities "${GOLANG_PKG_DEPENDENCIES[$i]}" )
+				EOF
+
+				# Debug
+				debug-print "${FUNCNAME}: DEPENDENCY      = ${GOLANG_PKG_DEPENDENCIES[$i]}"
+				debug-print "${FUNCNAME}: importpath      = ${DEPENDENCY[importpath]}"
+				debug-print "${FUNCNAME}: importpathalias = ${DEPENDENCY[importpathalias]}"
+				debug-print "${FUNCNAME}: host            = ${DEPENDENCY[host]}"
+				debug-print "${FUNCNAME}: author          = ${DEPENDENCY[author_name]}"
+				debug-print "${FUNCNAME}: project         = ${DEPENDENCY[project_name]}"
+				debug-print "${FUNCNAME}: revision        = ${DEPENDENCY[revision]}"
+
+				local message="Importing ${DEPENDENCY[importpath]}"
+				local destdir
+
+				# Prepares GOPATH structure.
+				case ${DEPENDENCY[importpathalias]} in
+					gopkg.in*)
+						message+=" as ${DEPENDENCY[importpathalias]}"
+						destdir="${DEPENDENCY[importpathalias]}"
+
+						# Creates the import path in GOPATH.
+						mkdir -p "${GOPATH}/src/${DEPENDENCY[importpathalias]%/*}" || die
+						#einfo "\n${GOPATH}/src/${DEPENDENCY[importpathalias]%/*}"
+						;;
+					*)
+						[[ "${DEPENDENCY[importpath]}" != "${DEPENDENCY[importpathalias]}/${DEPENDENCY[project_name]}" ]] && message+=" as ${DEPENDENCY[importpathalias]}/${DEPENDENCY[project_name]}"
+						destdir="${DEPENDENCY[importpathalias]}/${DEPENDENCY[project_name]}"
+
+						# Creates the import path in GOPATH.
+						mkdir -p "${GOPATH}/src/${DEPENDENCY[importpathalias]}" || die
+						#einfo "\n${GOPATH}/src/${DEPENDENCY[importpathalias]}"
+						;;
+				esac
+
+				# Moves sources from WORKDIR into GOPATH.
+				case ${DEPENDENCY[host]} in
+					github*)
+						ebegin "${message}"
+							mv ${DEPENDENCY[project_name]}-${DEPENDENCY[revision]}* "${GOPATH}"/src/${destdir} || die
+						eend
+
+						# FIX: sometimes the source code inside an importpath alias
+						#      (such as gopkg.in/mylib.v1) invokes imports from
+						#      the original import path instead of using the alias,
+						#      thus we need a symbolic link between the alias and
+						#      the original import path to avoid compilation issues.
+						#      Example: gopkg.in/Shopify/sarama.v1 erroneously
+						#      invokes imports from github.com/shopify/sarama
+						if [[ ${destdir} != ${DEPENDENCY[importpath]} ]]; then
+							golang_fix_importpath_alias ${destdir} ${DEPENDENCY[importpath]}
+						fi
+						;;
+					bitbucket*)
+						#einfo "path: ${DEPENDENCY[author_name]}-${DEPENDENCY[project_name]}-${DEPENDENCY[revision]}"
+						ebegin "${message}"
+							mv ${DEPENDENCY[author_name]}-${DEPENDENCY[project_name]}-${DEPENDENCY[revision]}* "${GOPATH}"/src/${destdir} || die
+						eend
+						;;
+					code.google*)
+						ebegin "${message}"
+							mv ${DEPENDENCY[project_name]}-${DEPENDENCY[revision]}* "${GOPATH}"/src/${destdir} || die
+						eend
+						;;
+					*) die "Function 'golang-common_src_prepare' doesn't support '${DEPENDENCY[importpath]}'" ;;
+				esac
+			done
+
+		fi
+
+	popd > /dev/null || die
+
+
+	# Auto-detects the presence of Go's vendored
+	# dependencies inside $S/vendor.
+	local VENDOR="${S}/vendor"
+	if [[ -d "${VENDOR}" ]]; then
+		golang_add_vendor "${VENDOR}"
+		export GO15VENDOREXPERIMENT=1
+	fi
+
+	# Auto-detects the presence of Go's vendored
+	# dependencies inside $S/*/vendor
+	if [[ -n ${GOLANG_PKG_BUILDPATH} && ${GOLANG_PKG_BUILDPATH##*/} != "..." ]]; then
+		while read -r -d $' ' path; do
+			# Trims leading slash (if any).
+			path="${path/\//}"
+
+			# Extracts the root path.
+			path="${path%%/*}"
+
+			# Ignores $path when it's empty or a string of white spaces.
+			[[ -n $path ]] || continue
+
+			local vendor="${S}/${path}/vendor"
+			if [[ -d "${vendor}" ]]; then
+				golang_add_vendor "${vendor}"
+			fi
+		done <<< "$( echo ${GOLANG_PKG_BUILDPATH}) "
+	fi
+
+
+	# Auto-detects the presence of Godep's workspace
+	# (see github.com/tools/godep for more infos).
+	VENDOR="${S}/Godeps/_workspace"
+	if [[ -d "${VENDOR}" ]]; then
+		golang_add_vendor "${VENDOR}"
+	fi
+
+	# Evaluates PATCHES array.
+	default_src_prepare
+}
+
+
+# @FUNCTION: golang-common_src_configure
+# @DESCRIPTION:
+# Configure the package.
+golang-common_src_configure() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${EGO} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+	# Defines the level of verbosity.
+	local EGO_VERBOSE="-v"
+	[[ -z ${PORTAGE_VERBOSE} ]] || EGO_VERBOSE+=" -x"
+
+	# GoLang doesn't have a configure phase,
+	# so instead this eclass prints the output of 'go env'.
+	local -a GOLANG_ENV=()
+	while read -r line; do
+		GOLANG_ENV+=("${line}")
+	done <<-EOF
+		$( ${GO} env )
+	EOF
+
+	# Prints an error when 'go env' output is missing.
+	if [[ ${#GOLANG_ENV[@]} -eq 1 ]]; then
+		eerror "Your GoLang environment should be more verbose"
+	fi
+
+	# Prints GoLang environment summary.
+	einfo " ${EGO} env"
+	for env in "${GOLANG_ENV[@]}"; do
+		einfo " - ${env}"
+	done
+
+
+	# Removes GoLang object files from package source directories (pkg/)
+	# and temporary directories (_obj/ _test*/).
+	local EGO_SUBPACKAGES="${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}"
+	case $( ver_cut 1-2 ${GOLANG_VERSION} ) in
+		1.4*) ;;
+		*)
+			EGO_SUBPACKAGES+="/..."
+			;;
+	esac
+#	einfo "${EGO} clean -i ${EGO_VERBOSE} ${EGO_SUBPACKAGES}"
+#	${EGO} clean -i \
+#		${EGO_VERBOSE} \
+#		"${EGO_SUBPACKAGES}" \
+#		|| die
+
+	# Removes GoLang objects files from all the dependencies too.
+#	if [[ ${#GOLANG_PKG_DEPENDENCIES[@]} -gt 0 ]]; then
+#
+#		for i in ${!GOLANG_PKG_DEPENDENCIES[@]} ; do
+#
+#			# Collects all the tokens of the dependency.
+#			local -A DEPENDENCY=()
+#			while read -r -d $'\n' key value; do
+#				[[ -z ${key} ]] && continue
+#				DEPENDENCY[$key]="${value}"
+#			done <<-EOF
+#				$( _factorize_dependency_entities "${GOLANG_PKG_DEPENDENCIES[$i]}" )
+#			EOF
+#
+#			[[ ! -d ${DEPENDENCY[importpath]} ]] && continue
+#
+#			# Debug
+#			debug-print "${FUNCNAME}: DEPENDENCY = ${GOLANG_PKG_DEPENDENCIES[$i]}"
+#			debug-print "${FUNCNAME}: importpath = ${DEPENDENCY[importpath]}"
+#
+#			# Cleans object files of the dependency.
+#			einfo "${EGO} clean -i ${EGO_VERBOSE} ${DEPENDENCY[importpath]}"
+#			${EGO} clean \
+#				-i ${EGO_VERBOSE} \
+#				"${DEPENDENCY[importpath]}" \
+#				|| die
+#		done
+#	fi
+
+	# Before to compile Godep's dependencies it's wise to wipe out
+	# all pre-built object files from Godep's package source directories.
+	if [[ -d "${S}"/Godeps/_workspace/pkg ]]; then
+		ebegin "Cleaning up pre-built object files in Godep workspace"
+			rm -r "${S}"/Godeps/_workspace/pkg || die
+		eend
+	fi
+	if [[ -d "${S}"/Godeps/_workspace/bin ]]; then
+		ebegin "Cleaning up executables in Godep workspace"
+			rm -r "${S}"/Godeps/_workspace/bin || die
+		eend
+	fi
+
+
+	# Executes 'go generate'.
+	# NOTE: generate should never run automatically. It must be run explicitly.
+	if [[ -n ${GOLANG_PKG_USE_GENERATE} ]]; then
+		pushd "${GOPATH}/src/${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}" > /dev/null || die
+			einfo "${EGO} generate ${EGO_VERBOSE} ${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}/..."
+			${EGO} generate \
+				${EGO_VERBOSE} \
+				./... \
+				|| die
+		popd > /dev/null || die
+	fi
+
+
+	# Executes 'statik' when explicitly asked.
+	if [[ -n ${GOLANG_PKG_STATIK} ]]; then
+		ebegin "${ESTATIK} $GOLANG_PKG_STATIK"
+			${ESTATIK} $GOLANG_PKG_STATIK || die
+		eend
+	fi
+}
+
+
+# @FUNCTION: golang-common_src_compile
+# @DESCRIPTION:
+# Compiles the package.
+golang-common_src_compile() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${EGO} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+	# Populates env variable GOPATH with vendored workspaces (if present).
+	if [[ -n ${GOLANG_PKG_VENDOR} ]]; then
+		einfo "Using vendored dependencies from:"
+
+		for path in "${GOLANG_PKG_VENDOR[@]}"; do
+			[ -d ${path} ] || continue
+
+			if [[ ${path//${S}\//} == "vendor" ]]; then
+				einfo "- vendor/ (native vendoring support)"
+				continue
+			fi
+
+			debug-print "$FUNCNAME: GOPATH: Adding vendor path ${path}"
+			ebegin "- ${path//${S}\//}"
+				GOPATH="${GOPATH}:$( echo ${path} )"
+			eend
+		done
+
+		export GOPATH
+	fi
+
+	# Enables position-independent executables (PIE)
+	local EGO_PIE
+	use pie && EGO_PIE="-buildmode=pie"
+
+	# Defines the install suffix.
+	local EGO_INSTALLSUFFIX
+	[[ -z ${GOLANG_PKG_INSTALLSUFFIX} ]] || EGO_INSTALLSUFFIX="-installsuffix=${GOLANG_PKG_INSTALLSUFFIX}"
+
+	# Defines the level of verbosity.
+	local EGO_VERBOSE="-v"
+	[[ -z ${PORTAGE_VERBOSE} ]] || EGO_VERBOSE+=" -x"
+
+	# Defines the number of builds that can be run in parallel.
+	local EGO_PARALLEL="-p $(makeopts_jobs)"
+
+	# Defines extra options.
+	local EGO_EXTRA_OPTIONS="-a"
+
+	# Prepares build flags for the go toolchain.
+	local EGO_BUILD_FLAGS="$( echo ${EGO_VERBOSE} ) $( echo ${EGO_PARALLEL} ) $( echo ${EGO_EXTRA_OPTIONS} ) $( echo ${EGO_PIE} )"
+	[[ -n ${EGO_INSTALLSUFFIX} ]] && EGO_BUILD_FLAGS+=" $( echo ${EGO_INSTALLSUFFIX} )"
+
+	# Detects the total number of packages.
+	local pkgs=0 ifs_save=${IFS} IFS=$' '
+	for path in ${GOLANG_PKG_BUILDPATH[@]} ; do
+		pkgs=$(( $pkgs + 1 ))
+	done
+	[[ ${pkgs} -eq 0 ]] && pkgs=1 # there is always at least 1 package
+	IFS=${ifs_save}
+
+	# Builds the package
+	einfo "Compiling ${pkgs} package(s):"
+	if [[ -n ${GOLANG_PKG_BUILDPATH} && ${GOLANG_PKG_BUILDPATH##*/} != "..." && ${pkgs} -gt 1 ]]; then
+
+		# NOTE: This eclass trims all leading and trailing white spaces from the
+		#       input of the following 'while read' loop, then appends an extra
+		#       trailing space; this is necessary to avoid undefined behaviours
+		#       within the loop when GOLANG_PKG_BUILDPATH is populated with only
+		#       a single element.
+		while read -r -d $' ' cmd; do
+			# Ignores $cmd when it's empty or a string of white spaces
+			#einfo "cmd: |$cmd| cmd: |${cmd##*/}|"
+			[[ -n $cmd ]] || continue
+
+			golang_do_build \
+				${EGO_BUILD_FLAGS} \
+				-o "${GOBIN}/${cmd##*/}" \
+				"${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${cmd}"
+		done <<< "$( echo ${GOLANG_PKG_BUILDPATH}) "
+	else
+		# If the package is a multiple package (/...)
+		# then this eclass doesn't specify the output name.
+		[[ ${GOLANG_PKG_BUILDPATH##*/} != "..." ]] && EGO_BUILD_FLAGS+=" -o ${GOBIN}/${GOLANG_PKG_OUTPUT_NAME}"
+
+		golang_do_build \
+			${EGO_BUILD_FLAGS} \
+			"${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${GOLANG_PKG_BUILDPATH}"
+	fi
+}
+
+
+# @FUNCTION: golang-common_src_install
+# @DESCRIPTION:
+# Installs binaries and documents from DOCS or HTML_DOCS arrays.
+golang-common_src_install() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${EGO} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+	# Enables position-independent executables (PIE)
+	local EGO_PIE
+	use pie && EGO_PIE="-buildmode=pie"
+
+	# Defines the install suffix.
+	local EGO_INSTALLSUFFIX
+	[[ -z ${GOLANG_PKG_INSTALLSUFFIX} ]] || EGO_INSTALLSUFFIX="-installsuffix=${GOLANG_PKG_INSTALLSUFFIX}"
+
+	# Defines the level of verbosity.
+	local EGO_VERBOSE="-v"
+	[[ -z ${PORTAGE_VERBOSE} ]] || EGO_VERBOSE+=" -x"
+
+	# Defines the number of builds that can be run in parallel.
+	local EGO_PARALLEL="-p $(makeopts_jobs)"
+
+	# Defines extra options.
+	local EGO_EXTRA_OPTIONS
+
+	# Prepares build flags for the go toolchain.
+	local EGO_BUILD_FLAGS="$( echo ${EGO_VERBOSE} ) $( echo ${EGO_PARALLEL} ) $( echo ${EGO_EXTRA_OPTIONS} ) $( echo ${EGO_PIE} )"
+	[[ -n ${EGO_INSTALLSUFFIX} ]] && EGO_BUILD_FLAGS+=" $( echo ${EGO_INSTALLSUFFIX} )"
+
+	# Defines sub-packages.
+	local EGO_SUBPACKAGES="${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${GOLANG_PKG_BUILDPATH}"
+
+	# Executes the pre-install phase (go install).
+	if [[ -n ${GOLANG_PKG_IS_MULTIPLE} ]]; then
+		einfo "${EGO} install -ldflags '$GOLANG_PKG_LDFLAGS' -tags '$GOLANG_PKG_TAGS' ${EGO_BUILD_FLAGS} ${EGO_SUBPACKAGES}"
+		${EGO} install \
+			-ldflags "${GOLANG_PKG_LDFLAGS}" \
+			-tags "${GOLANG_PKG_TAGS}" \
+			${EGO_BUILD_FLAGS} \
+			"${EGO_SUBPACKAGES}" \
+			|| die
+	fi
+
+	# Installs binaries.
+	into ${GOLANG_PKG_INSTALLPATH}
+	for bin in "${GOBIN}"/* ; do
+		dobin ${bin}
+	done
+
+	# Installs documentation.
+	einstalldocs
+}
+
+# @FUNCTION: golang-common_src_test
+# @DESCRIPTION:
+# Runs the unit tests for the main package.
+golang-common_src_test() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${EGO} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+	# Appends S and GOBIN to exported main paths.
+	# FIX: this is necessary for unit tests that need to invoke bins from
+	#       $GOBIN or from within $S/bin.
+	export PATH="${S}/bin:${GOBIN}:${PATH}"
+
+	# Defines the level of verbosity.
+	local EGO_VERBOSE="-v"
+	[[ -z ${PORTAGE_VERBOSE} ]] || EGO_VERBOSE+=" -x"
+
+	# Defines the number of builds that can be run in parallel.
+	local EGO_PARALLEL="-p $(makeopts_jobs)"
+
+	# Defines extra options.
+	#local EGO_EXTRA_OPTIONS="-a"
+
+	# Enables data race detection.
+	local EGO_RACE
+	[[ -n ${GOLANG_PKG_HAVE_TEST_RACE} ]] && EGO_RACE=" -race"
+
+	# Prepares build flags for the go toolchain.
+	local EGO_BUILD_FLAGS="$( echo ${EGO_VERBOSE} ) $( echo ${EGO_PARALLEL} ) $( echo ${EGO_EXTRA_OPTIONS} )"
+	[[ -n ${EGO_RACE} ]] && EGO_BUILD_FLAGS+=" $( echo ${EGO_RACE} )"
+
+	# Sanitizes vars from entra white spaces.
+    GOLANG_PKG_LDFLAGS="$( echo ${GOLANG_PKG_LDFLAGS} )"
+    GOLANG_PKG_TAGS="$( echo ${GOLANG_PKG_TAGS} )"
+
+	# Defines sub-packages.
+	local EGO_SUBPACKAGES="${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${GOLANG_PKG_BUILDPATH}"
+	[[ -z ${GOLANG_PKG_IS_MULTIPLE} ]] || EGO_SUBPACKAGES="./..."
+
+	# Detects the total number of packages.
+	local pkgs=0 ifs_save=${IFS} IFS=$' '
+	for path in ${GOLANG_PKG_BUILDPATH[@]} ; do
+		pkgs=$(( $pkgs + 1 ))
+	done
+	[[ ${pkgs} -eq 0 ]] && pkgs=1 # there is always at least 1 package
+	IFS=${ifs_save}
+
+	# Runs the Unit Tests
+	einfo "Testing ${pkgs} package(s):"
+	if [[ -n ${GOLANG_PKG_BUILDPATH} && ${GOLANG_PKG_BUILDPATH##*/} != "..." && ${pkgs} -gt 1 ]]; then
+
+		# NOTE: This eclass trims all leading and trailing white spaces from the
+		#       input of the following 'while read' loop, then appends an extra
+		#       trailing space; this is necessary to avoid undefined behaviours
+		#       within the loop when GOLANG_PKG_BUILDPATH is populated with only
+		#       a single element.
+		while read -r -d $' ' cmd; do
+			# Ignores $cmd when it's empty or a string of white spaces
+			#einfo "cmd: |$cmd| cmd: |${cmd##*/}|"
+			[[ -n $cmd ]] || continue
+
+			einfo "${EGO} test -ldflags '$GOLANG_PKG_LDFLAGS' -tags '$GOLANG_PKG_TAGS' ${EGO_BUILD_FLAGS} ${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${cmd}/..."
+			${EGO} test \
+				-ldflags "${GOLANG_PKG_LDFLAGS}" \
+				-tags "${GOLANG_PKG_TAGS}" \
+				${EGO_BUILD_FLAGS} \
+				"${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}${cmd}/..." \
+				|| die
+       done <<< "$( echo ${GOLANG_PKG_BUILDPATH}) "
+	else
+		# It's a single package
+		einfo "${EGO} test -ldflags '$GOLANG_PKG_LDFLAGS' -tags '$GOLANG_PKG_TAGS' ${EGO_BUILD_FLAGS} ${EGO_SUBPACKAGES}"
+		${EGO} test \
+			-ldflags "${GOLANG_PKG_LDFLAGS}" \
+			-tags "${GOLANG_PKG_TAGS}" \
+			${EGO_BUILD_FLAGS} \
+			"${EGO_SUBPACKAGES}" \
+			|| die
+	fi
+}
+
+
+# @FUNCTION: golang_do_build
+# @INTERNAL
+# @USAGE: <flags> <buildpath>
+# @DESCRIPTION:
+#
+# @CODE
+# Example:
+#   GOLANG_PKG_LDFLAGS="-extldflags=-static"
+#   GOLANG_PKG_TAGS="netgo"
+#
+#	golang_do_build ${EGO_BUILD_FLAGS} ${GOLANG_PKG_IMPORTPATH}/${GOLANG_PKG_NAME}${GOLANG_PKG_BUILDPATH}
+# @CODE
+golang_do_build() {
+	debug-print-function ${FUNCNAME} $*
+
+	[[ ${GOLANG_VERSION} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+	# Filters "=" chars from ldflags declaration.
+	# NOTE: from go1.5+ linker syntax is no more compatible with <go1.4;
+	#       this hack ensures that the old behaviour is honoured.
+	if [[ $( ver_cut 1-2 ${GOLANG_VERSION} ) == "1.4" ]]; then
+		GOLANG_PKG_LDFLAGS="${GOLANG_PKG_LDFLAGS//=/ }"
+	fi
+
+	# Disables debug symbols (DWARF) when not required.
+	if ! use debug; then
+		case "${GOLANG_PKG_LDFLAGS}" in
+			*-s*|*-w*)
+			    # Do nothing
+    			;;
+			*)
+				GOLANG_PKG_LDFLAGS+=" -s -w"
+		esac
+	fi
+
+	# Sanitizes vars from entra white spaces.
+	GOLANG_PKG_LDFLAGS="$( echo ${GOLANG_PKG_LDFLAGS} )"
+	GOLANG_PKG_TAGS="$( echo ${GOLANG_PKG_TAGS} )"
+
+	einfo "${EGO} build -ldflags '$GOLANG_PKG_LDFLAGS' -tags '$GOLANG_PKG_TAGS' $*"
+	${EGO} build \
+		-ldflags "${GOLANG_PKG_LDFLAGS}" \
+		-tags "${GOLANG_PKG_TAGS}" \
+		$( echo $* ) \
+		|| die
+}
+
+
+# @FUNCTION: golang_add_vendor
+# @INTERNAL
+# @USAGE: <path>
+# @DESCRIPTION:
+#
+# @CODE
+# Example
+#
+#   golang_add_vendor "${S}"/vendor
+#   golang_add_vendor "${S}"/${PN}/vendor
+# @CODE
+golang_add_vendor() {
+	debug-print-function ${FUNCNAME} $*
+
+	[[ ${1} ]] || die "${FUNCNAME}: no paths given"
+
+	[[ ${GOLANG_VERSION} ]] || die "No Golang implementation set (golang_setup not called?)."
+
+	[[ ! -d "${1}" ]] && return
+
+	# NOTE: this hack is required by Go v1.4 and older versions.
+	#if [[ ! -d "${1}"/src ]]; then
+	#	ebegin "Fixing $1"
+	#		ln -s "${1}" "${1}"/src || die
+	#	eend
+	#fi
+
+	GOLANG_PKG_VENDOR+=(${1})
+}
+
+
+# @FUNCTION: golang_fix_importpath_alias
+# @USAGE: <target> <alias>
+# @DESCRIPTION:
+# Helper functions for generating a symbolic link for import path <target> as
+# <alias>.
+#
+# WARNING: Use this function only if GOLANG_PKG_DEPENDENCIES declaration of
+# import path aliases doesn't work (e.g.: the package name differs from both the
+# import path and the alias, or if the package name is case sensitive but the
+# import path is not).
+#
+# @CODE
+# Example:
+#
+#   src_prepare() {
+#   	golang-single_src_prepare
+#
+#   	golang_fix_importpath_alias \
+#   		"github.com/GoogleCloudPlatform/gcloud-golang" \
+#   		"google.golang.org/cloud"
+#   }
+# @CODE
+golang_fix_importpath_alias() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	[[ ${1} ]] || die "${FUNCNAME}: no target specified"
+	[[ ${2} ]] || die "${FUNCNAME}: no alias specified"
+
+	[[ ${EGO} ]] || die "No GoLang implementation set (golang_setup not called?)."
+
+
+	local TARGET="${1}"
+	local ALIAS="${2}"
+
+	if [[ ${ALIAS%/*} != ${ALIAS} ]]; then
+		mkdir -p "${GOPATH}/src/${ALIAS%/*}" || die
+	fi
+	ebegin "Linking ${TARGET} as ${ALIAS}"
+		ln -s "${GOPATH}/src/${TARGET}" \
+			"${GOPATH}/src/${ALIAS}" \
+			|| die
+	eend
+}
+
+
+fi
diff --git a/eclass/golang-live.eclass b/eclass/golang-live.eclass
new file mode 100644
index 00000000..2d8902fe
--- /dev/null
+++ b/eclass/golang-live.eclass
@@ -0,0 +1,157 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: golang-live.eclass
+# @MAINTAINER:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @AUTHOR:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @BLURB: Eclass for fetching and unpacking HEAD shapshot of go repositories
+# @DESCRIPTION:
+# This eclass is written to ease the maintenance of live ebuilds
+# of software written in the Go programming language.
+
+inherit golang-common
+
+EXPORT_FUNCTIONS src_prepare src_unpack src_configure src_compile src_install src_test
+
+if [[ -z ${_GOLANG_LIVE_ECLASS} ]]; then
+_GOLANG_LIVE_ECLASS=1
+
+
+# @ECLASS-VARIABLE: EGO_LIVESTORE_DIR
+# @INTERNAL
+# @DESCRIPTION:
+# Storage directory for Go sources.
+# Ebuilds must not set it.
+
+# @ECLASS-VARIABLE: EVCS_UMASK
+# @DEFAULT_UNSET
+# @DESCRIPTION:
+# Set this variable to a custom umask. This is intended to be set by
+# users. By setting this to something like 002, it can make life easier
+# for people who do development as non-root (but are in the portage
+# group), and then switch over to building with FEATURES=userpriv.
+# Or vice-versa. Shouldn't be a security issue here as anyone who has
+# portage group write access already can screw the system over in more
+# creative ways.
+
+
+# Validates use of GOLANG_PKG_DEPENDENCIES.
+# NOTE: a live ebuild should not have go dependencies.
+# TODO: check also if GOLANG_PKG_DEPENDENCIES is an array
+if [[ -n ${GOLANG_PKG_DEPENDENCIES} ]]; then
+	eerror "Ebuild ${CATEGORY}/${PF} specifies GOLANG_PKG_DEPENDENCIES."
+	eerror "Please, fix it by removing GOLANG_PKG_DEPENDENCIES entirely."
+	die "Banned variable GOLANG_PKG_DEPENDENCIES is set"
+fi
+
+
+# @FUNCTION: golang-live_src_fetch
+# @DESCRIPTION:
+# Fetch a go package along with its dependencies.
+golang-live_src_fetch() {
+	debug-print-function ${FUNCTION} "$@"
+
+	[[ -z ${EGO_LIVESTORE_DIR} ]] && die "No EGO_LIVESTORE_DIR set (golang-live_src_unpack not called?)."
+
+	# Fetch the go package
+	[[ -n ${EVCS_UMASK} ]] && eumask_push ${EVCS_UMASK}
+
+	set -- env \
+		GOPATH="${EGO_LIVESTORE_DIR}" \
+		go get -d -u -v -t -tags="${GOLANG_PKG_TAGS}" ${@}
+	echo "$@"
+	"$@" || die
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_pop
+}
+
+# @FUNCTION: golang-live_src_unpack
+# @DESCRIPTION:
+# Unpack the source archive.
+golang-live_src_unpack() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Creates EGO_LIVESTORE_DIR if necessary.
+	local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
+	: EGO_LIVESTORE_DIR=${EGO_LIVESTORE_DIR:=${distdir}/go-${PN}-livesrc}
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_push ${EVCS_UMASK}
+
+	if [[ ! -d ${EGO_LIVESTORE_DIR} ]]; then
+		(
+			addwrite /
+			mkdir -p "${EGO_LIVESTORE_DIR}"
+		) || die "${ECLASS}: unable to create ${EGO_LIVESTORE_DIR}"
+	fi
+
+	addwrite "${EGO_LIVESTORE_DIR}"
+
+	[[ -n ${EVCS_UMASK} ]] && eumask_pop
+
+	# Retrieves the GOLANG_PKG_IMPORTPATH go package.
+	golang-live_src_fetch "${GOLANG_PKG_IMPORTPATH}/${GOLANG_PKG_NAME}"/...
+
+	# Creates SOURCE directory.
+	mkdir -p "${S}" || die
+}
+
+
+# @FUNCTION: golang-live_src_prepare
+# @DESCRIPTION:
+# Prepare source code.
+golang-live_src_prepare() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	# Sets up GoLang build environment.
+	golang_setup
+
+	# Imports all go dependencies
+	ebegin "Importing all the sources in ${GOPATH}"
+		cp -r "${EGO_LIVESTORE_DIR}/src" "${GOPATH}" || die "Unable to copy sources to ${GOPATH}"
+	eend
+
+	golang-common_src_prepare
+}
+
+
+# @FUNCTION: golang-live_src_configure
+# @DESCRIPTION:
+# Configure the package.
+golang-live_src_configure() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_configure
+}
+
+# @FUNCTION: golang-live_src_compile
+# @DESCRIPTION:
+# Compiles the package.
+golang-live_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_compile
+}
+
+# @FUNCTION: golang-live_src_install
+# @DESCRIPTION:
+# Installs binaries and documents from DOCS or HTML_DOCS arrays.
+golang-live_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_install
+}
+
+# @FUNCTION: golang-live_src_test
+# @DESCRIPTION:
+# Runs the unit tests for the main package.
+golang-live_src_test() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_test
+}
+
+
+fi
diff --git a/eclass/golang-single.eclass b/eclass/golang-single.eclass
new file mode 100644
index 00000000..e8007f76
--- /dev/null
+++ b/eclass/golang-single.eclass
@@ -0,0 +1,185 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+# @ECLASS: golang-single.eclass
+# @MAINTAINER:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @AUTHOR:
+# Mauro Toffanin <toffanin.mauro@gmail.com>
+# @BLURB: An eclass for GoLang packages not installed inside GOPATH/GOBIN.
+# @DESCRIPTION:
+# This eclass allows to install arbitrary packages written in GoLang which
+# don't support being installed inside the Go environment.
+# This mostly includes traditional packages (C/C++/GUI) embedding tools written
+# in GoLang, and GoLang packages that need to be compiled with GCC instead of
+# the standard Go interpreter.
+#
+# @EXAMPLE:
+# Typical ebuild using golang-single.eclass:
+#
+# @CODE
+# EAPI=5
+#
+# GOLANG_PKG_IMPORTPATH="github.com/captObvious"
+# GOLANG_PKG_ARCHIVESUFFIX=".zip"
+# GOLANG_PKG_HAVE_TEST
+# inherit golang-single qt4-r2
+#
+# DESCRIPTION="Foo bar application"
+# HOMEPAGE="http://example.org/foo/"
+#
+# LICENSE="MIT"
+# KEYWORDS="~amd64 ~x86"
+# SLOT="0"
+# IUSE="doc qt4"
+#
+# CDEPEND="
+#   qt4? (
+#       dev-qt/qtcore:4
+#       dev-qt/qtgui:4
+#   )"
+# RDEPEND="${CDEPEND}
+#   !media-gfx/bar"
+# DEPEND="${CDEPEND}
+#   doc? ( app-doc/doxygen )"
+#
+# DOCS=(AUTHORS ChangeLog README "Read me.txt" TODO)
+#
+# PATCHES=(
+#   "${FILESDIR}/${P}-qt4.patch" # bug 123458
+#   "${FILESDIR}/${P}-as-needed.patch"
+# )
+#
+# src_install() {
+#   use doc && HTML_DOCS=("${BUILD_DIR}/apidocs/html/")
+#   autotools-utils_src_install
+#   if use examples; then
+#       dobin "${BUILD_DIR}"/foo_example{1,2,3} \\
+#           || die 'dobin examples failed'
+#   fi
+# }
+#
+# @CODE
+
+
+inherit golang-common
+
+EXPORT_FUNCTIONS src_prepare src_unpack src_configure src_compile src_install src_test
+
+if [[ -z ${_GOLANG_SINGLE_ECLASS} ]]; then
+_GOLANG_SINGLE_ECLASS=1
+
+
+# This eclass uses GOLANG_PKG_IMPORTPATH to populate SRC_URI.
+SRC_URI="${SRC_URI:="https://${GOLANG_PKG_IMPORTPATH}/${GOLANG_PKG_NAME}/archive/${GOLANG_PKG_ARCHIVEPREFIX}${GOLANG_PKG_VERSION}${GOLANG_PKG_ARCHIVESUFFIX} -> ${P}${GOLANG_PKG_ARCHIVESUFFIX}"}"
+
+# This eclass uses GOLANG_PKG_DEPENDENCIES associative array to populate SRC_URI
+# with the required snapshots of the supplied GoLang dependencies.
+if [[ ${#GOLANG_PKG_DEPENDENCIES[@]} -gt 0 ]]; then
+
+	for i in ${!GOLANG_PKG_DEPENDENCIES[@]} ; do
+
+		# Collects all the tokens of the dependency.
+		local -A DEPENDENCY=()
+		while read -d $'\n' key value; do
+			[[ -z ${key} ]] && continue
+			DEPENDENCY[$key]="${value}"
+		done <<-EOF
+			$( _factorize_dependency_entities "${GOLANG_PKG_DEPENDENCIES[$i]}" )
+		EOF
+
+		# Debug
+		debug-print "${FUNCNAME}: DEPENDENCY = ${GOLANG_PKG_DEPENDENCIES[$i]}"
+		debug-print "${FUNCNAME}: importpath = ${DEPENDENCY[importpath]}"
+		debug-print "${FUNCNAME}: revision   = ${DEPENDENCY[revision]}"
+
+		# Downloads the archive.
+		case ${DEPENDENCY[importpath]} in
+			github*)
+				SRC_URI+=" https://${DEPENDENCY[importpath]}/archive/${DEPENDENCY[revision]}${GOLANG_PKG_ARCHIVESUFFIX} -> ${DEPENDENCY[importpath]//\//-}-${DEPENDENCY[revision]}${GOLANG_PKG_ARCHIVESUFFIX}"
+				;;
+			bitbucket*)
+				SRC_URI+=" https://${DEPENDENCY[importpath]}/get/${DEPENDENCY[revision]}.zip -> ${DEPENDENCY[importpath]//\//-}-${DEPENDENCY[revision]}.zip"
+				;;
+			code.google*)
+				SRC_URI+=" https://${DEPENDENCY[project_name]}.googlecode.com/archive/${DEPENDENCY[revision]}.tar.gz -> ${DEPENDENCY[importpath]//\//-}-${DEPENDENCY[revision]}.tar.gz"
+				;;
+			*) die "This eclass doesn't support '${DEPENDENCY[importpath]}'" ;;
+		esac
+
+	done
+fi
+
+
+# @FUNCTION: golang-single_src_unpack
+# @DESCRIPTION:
+# Unpack the source archive.
+golang-single_src_unpack() {
+	debug-print-function ${FUNCNAME} "${@}"
+
+	default
+
+	# Creates S.
+	mkdir -p "${S%/*}" || die
+
+	# Moves main GoLang package from WORKDIR into GOPATH.
+	if [[ "${GOLANG_PKG_IMPORTPATH}" != "${GOLANG_PKG_IMPORTPATH_ALIAS}" ]]; then
+		local alias_abspath="${WORKDIR}/gopath/src/${GOLANG_PKG_IMPORTPATH_ALIAS}/${GOLANG_PKG_NAME}"
+		mkdir -p "${alias_abspath%/*}" || die
+		mv "${GOLANG_PKG_NAME}-${GOLANG_PKG_VERSION}" "${alias_abspath}"/ || die
+	else
+		mv "${GOLANG_PKG_NAME}-${GOLANG_PKG_VERSION}" "${S}"/ || die
+	fi
+}
+
+
+# @FUNCTION: golang-single_src_prepare
+# @DESCRIPTION:
+# Prepare source code.
+golang-single_src_prepare() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	# Sets up GoLang build environment.
+	golang_setup
+
+	golang-common_src_prepare
+}
+
+# @FUNCTION: golang-single_src_configure
+# @DESCRIPTION:
+# Configure the package.
+golang-single_src_configure() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_configure
+}
+
+# @FUNCTION: golang-single_src_compile
+# @DESCRIPTION:
+# Compiles the package.
+golang-single_src_compile() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_compile
+}
+
+# @FUNCTION: golang-single_src_install
+# @DESCRIPTION:
+# Installs binaries and documents from DOCS or HTML_DOCS arrays.
+golang-single_src_install() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_install
+}
+
+# @FUNCTION: golang-single_src_test
+# @DESCRIPTION:
+# Runs the unit tests for the main package.
+golang-single_src_test() {
+	debug-print-function ${FUNCNAME} "$@"
+
+	golang-common_src_test
+}
+
+fi
diff --git a/net-p2p/trezord-go/Manifest b/net-p2p/trezord-go/Manifest
new file mode 100644
index 00000000..4eeceac8
--- /dev/null
+++ b/net-p2p/trezord-go/Manifest
@@ -0,0 +1,9 @@
+DIST github.com-felixge-httpsnoop-33ec42c.tar.gz 10726 SHA256 0d7169a09dee1a5c5e4e2d4bf45bcf782f3bcb031d6fcd057371b63a05d5216d SHA512 c7616b25718e2b50f8c5532da0c9b5ba9a6217d12f459f53b715c966eb4032e25d76533922271a6c0f94eacec91aaddabcdd07e3c0d5c96a3b754a180f57a995 WHIRLPOOL 44814ebed70561f511bf21cf911438ec2d83499d4a5d457ac931ae009e0eb6f2ae6580278f41512cd30d3008486ef77a502c78f0581aa1d3e7213d32b46ff844
+DIST github.com-gorilla-csrf-79c60d0.tar.gz 21853 SHA256 f368d039caca56688af7275a86c0da6e9b1e278060d90b0bbf15a7eadfa0e791 SHA512 85ac6ba263f9d0e870aaabbc41e565e7f840b2b2e42e20020b24632f106416911f6b5a2a50b93715569cc1c7a7f8e8078013c78110ae3ebcdea2b186704279c2 WHIRLPOOL b1f04b044618b30800b15fd40d3e80ec70c90f43046d625e144d71dbf4fce158c9a0e016ba55d1e8d04f4aa4afca7b71787524202a2fae2eaac1c3f40ce02bf3
+DIST github.com-gorilla-handlers-d453eff.tar.gz 20964 SHA256 408ef8b866b420417a12387b7802ed17ec28f208f63cc7b2760d991776661c6d SHA512 01b4e7d19a35a771afc00313dfc623ab1cd4373de8d0cec5d95da92a8d2438e0a591f3de14bdc184ed76efe0060fb88839148e048d75c817556a04bbd37c45eb WHIRLPOOL 7da069ab465810c46ef182be99dcc566727daf942f59c7bae78f699b82d5941da2516ff8fb50d28de084e9a97c63813d2843745cdaadab4c3ef3b85e0b7ee9e8
+DIST github.com-gorilla-mux-98cb6bf.tar.gz 45552 SHA256 5ad53aedce3cbeb0bb410c334745d72296ce5da38477b705915729d049c2bfbc SHA512 cdd399cd470c345eebc87b36e02bc01d513744799ce00aff5575fed90de7b20dfcb311244d8d9b8bd190cfa8699f8f38105edb4f19a938c5767d589f99166da4 WHIRLPOOL bc51594d22c8f005001f7be675f74d2b2e3fa05525c649c835ba61561b7c15d9bf6dbeaaa437528e4512d766f7498d272e01ff21cb1d23286bd142e2c7cc403b
+DIST github.com-gorilla-securecookie-e59506c.tar.gz 41294 SHA256 0fc95fb378846a90e805a984d4b2491cc7f12c29170e4e37a7242b7cf1e70d97 SHA512 91495069274558b8fb578d595abc0125402cecd5d26891294103551bfd667804aa9e3e99ceef9f421665d46edacca4dbdeb42388588d16e112376c43ab60c82e WHIRLPOOL d9d5efb33ace7d0a42a91e33d1e13f7ffa7d1b7e0e9500b364a5e30ae4a6bef72b16262c8b4c5f97916569aaff6ed52e5a6ccc47b877e32089dfe9aedfd1ea95
+DIST github.com-natefinch-lumberjack-dd45e6a.tar.gz 11042 SHA256 c760783c5fc93742376a8e5dc566e79416e5d990d91d3f7125fa52934254989f SHA512 e63a6c1deee45ca4a4c3ebcac381fee00fdebde00fd1a7f2a196b7283b9fc08e1c67fc999f56a9783185037ff7ccbec1c77665373c1646097594d7bf459db322 WHIRLPOOL 3fafd7bb18e1f96e00cdbc1bf7481f3cb1c77ab985a0808ace3e85ca431844d6d56ebef81f5870147acf845b124d621c529c2532e432524aa197477064250c73
+DIST github.com-pkg-errors-614d223.tar.gz 13422 SHA256 7d1073edc73a6e0f0bc87df9ab1c44429c967be6900c910ab171717993b7226b SHA512 a4649ab3259eb56519d405365f4e09027c5681cd2d086eaf92ea76c6471043242170ed5cf2240f2ff3f35644b1543f53eb8e77bdc4b3cd78638260948dd19d93 WHIRLPOOL 7a48eb66aea78d298c934fee9f23fa6d1030acd3c82044eb6d477a32f092ec6e9b403c98e0a585599e8d37352fb82ff0920dac6f80b6bb12e31ecf78216e7c3d
+DIST trezord-go-2.0.30.tar.gz 5468178 SHA256 9ee13c21e004493071d9ffb649c8b141183749d0d1405dedadc5b5324ef64cd3 SHA512 899c9453cea4a0a7ac2a69fdd889f084f9918a85afa7e33620bf02fdf098a66bcfe9997d0bc3722ae1003dbb8ae5b6fbc7e7d8e7fcb14b2de0aa0a9d5492ec40 WHIRLPOOL e79ebd09d19c7be52a02d7701ad98bb3116395f007f67b30b4416eed63af99f0bfcfd13540051b68a0e4f26f05653197a64c886980d52c37696ca38b6ef21a34
+EBUILD trezord-go-2.0.30.ebuild 645 SHA256 d96e0b40d62db581deb0e31ade6abc75131cf791846e0a14b2953d3c2c1da422 SHA512 472c3961f4fbc63e0439f438b3f89dc4c6de6a5ae592bd0ba921812eb2975575294526efe29c030de71dce508af770a2003716ca8650e86e4116704e80df0bdd WHIRLPOOL 1dde424aa4aec18319532bc562f3840747f6296060c090fbf306c6970b27f90be2284dca5b99a2f95d9d3140384be71101a437234d54198a6c172e485f243f6b
diff --git a/net-p2p/trezord-go/trezord-go-2.0.30.ebuild b/net-p2p/trezord-go/trezord-go-2.0.30.ebuild
new file mode 100644
index 00000000..a7e07410
--- /dev/null
+++ b/net-p2p/trezord-go/trezord-go-2.0.30.ebuild
@@ -0,0 +1,26 @@
+EAPI=7
+
+GOLANG_PKG_IMPORTPATH="github.com/trezor"
+GOLANG_PKG_VERSION="d0b5fb041d2a8e5be35899655949e154b3b7845b"
+
+GOLANG_PKG_DEPENDENCIES=(
+	"github.com/gorilla/csrf:79c60d0" # 1.7.0
+	"github.com/gorilla/handlers:d453eff" # 1.5.1
+	"github.com/gorilla/mux:98cb6bf" # 1.8.0
+	"github.com/gorilla/securecookie:e59506c" # 1.1.1
+	"github.com/felixge/httpsnoop:33ec42c" # 1.0.1
+	"github.com/pkg/errors:614d223" # 0.9.1
+	"github.com/natefinch/lumberjack:dd45e6a -> gopkg.in/natefinch/lumberjack.v2" # 2.0.0
+)
+
+inherit golang-single
+
+DESCRIPTION="Trezor Bridge"
+
+LICENSE="LGPL-3"
+SLOT="0"
+KEYWORDS="amd64"
+
+GOLANG_PKG_USE_CGO=1
+
+DEPEND="!net-p2p/trezord"
diff --git a/net-p2p/trezord/Manifest b/net-p2p/trezord/Manifest
index be608a22..6771d581 100644
--- a/net-p2p/trezord/Manifest
+++ b/net-p2p/trezord/Manifest
@@ -1,3 +1,3 @@
 DIST trezord-2.0.29.tar.gz 5579397 SHA256 39649bf24f2f6c3d1ad1b23a97365d6d483a7a64d4d925377c3520581ff8c6ba SHA512 358aff3087ab9b1c57ce323f1827efe4e084503ab7bd88942bba0b7581f1c01474e31df17391d182a4fff749c05c691bfad6001752d6a28d6270d872b81f734d WHIRLPOOL 6ead3c00f71637646cf83dffc72012042baf70a83e0515d88fdb16fa9c1cf8682eb4f848591d8e8c20f1bf66b6fa4dd30eced00e71e3195d96641076495fe800
-EBUILD trezord-2.0.29.ebuild 622 SHA256 afd98dad3ef79cf1f8d2fa78dfd2f17f8805fde63ac282d4ac850a8dd8f45b89 SHA512 ec973ddb183e0831d2cb11160cd7fb353dde682ac1fe9837e43e2555caa9d232e195de57f7e94edb4c1ac1c12706aa90ae0ac6071ae880e437f6333adea3a68d WHIRLPOOL e4dec4d1441eb36bccf0de5a3be340f7813396be02c82ccbe1606ca0b697056d1464954acfcb6c0e538ea125b0ac3945bfd4277f8d4914e763720daed9ea526e
-EBUILD trezord-9999.ebuild 579 SHA256 1defb24781b3c5c06673dd29ab10b136dad0dd04e6c4bb02cde66dc45f5b066c SHA512 21ef1f45f0dc62d69a840fcac80f608f543183fb27787b111c1066b697b1fb4ac18dd96b18c3960cef2b5c6147695129098766ddd1b3ddf6232d51303d65d17a WHIRLPOOL d0d8ed285cb0f9241029cbc3abd051a2317d19d6ded795c8465eaef229afb0ed4a9c5fd4ebe8875980cccbf84410e3f69337d7ef5f0204bb585f3b2f07517e7e
+EBUILD trezord-2.0.29.ebuild 651 SHA256 b2d09452c83189cb5a746638d3db9cc9454aaa4f68628c9ecbaa7b892700e18a SHA512 67a96ca7e81c0b6a5e78c8ecebd723cc768e0785523f01aca9b4064f787a87624e155bcd0623851aa8dfd6ed61cf35d822e99c6063ebce377047782b75bd5b74 WHIRLPOOL 17e9ec644541da75867a02f1550a1f03f6bc7222ff825c0579e7012d0037d5d4ca6bd4ee531533b3354b0f54e16c4c1e1a4fd6584fec3fd79f61b0ea6c8a53d9
+EBUILD trezord-9999.ebuild 608 SHA256 3d09e8383293f58fd157eca6eb12ed0fd619e04a7f9e39f281e8134f2c080388 SHA512 3542eda0860ffdb2ba0edd21c4084a82602509de244071b5eb05886f33549f28cf77776affa5c5dd0954d62854ba9723e84cd60e601b70cd47e1dbfb14ba2988 WHIRLPOOL 705102fbb190662a6ffd8dde4517273daf40e25a8e47adf3e36392959bb1dbeaa23573fdff381ace038cc91d895240cb6f93b5a9b71251028d328b2a10f57644
diff --git a/net-p2p/trezord/trezord-2.0.29.ebuild b/net-p2p/trezord/trezord-2.0.29.ebuild
index 0f4cd999..f3969280 100644
--- a/net-p2p/trezord/trezord-2.0.29.ebuild
+++ b/net-p2p/trezord/trezord-2.0.29.ebuild
@@ -11,6 +11,7 @@ LICENSE="LGPL-3"
 SLOT="0"
 KEYWORDS="amd64"
 EGO_PN=github.com/trezor/trezord-go
+DEPEND="!net-p2p/trezord-go"
 
 src_unpack()
 {
diff --git a/net-p2p/trezord/trezord-9999.ebuild b/net-p2p/trezord/trezord-9999.ebuild
index d0f21f24..3df9c7a7 100644
--- a/net-p2p/trezord/trezord-9999.ebuild
+++ b/net-p2p/trezord/trezord-9999.ebuild
@@ -11,6 +11,7 @@ EGIT_REPO_URI="https://github.com/trezor/trezord-go"
 LICENSE="LGPL-3"
 SLOT="0"
 KEYWORDS=""
+DEPEND="!net-p2p/trezord-go"
 
 DEPEND="dev-lang/go"