ebuild для itmages

Захотел написать ebuild (опыта 0) для itmages загрузчика.
Нужно собрать демон на питоне (отталкиваюсь от арчевских пакетов):
пример PKGBUILD https://aur.archlinux.org/packages/it/itmages-service/PKGBUILD
ну и потом уже гуи на qt
https://aur.archlinux.org/packages/it/itmages-service/PKGBUILD

Пока написал ebuild только для демона. Зависимости ставятся, но сам пакет не собирается:

# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU Lesser General Public License v3
# $Header: $

EAPI="4"

inherit python

DESCRIPTION="Scripts for uploading pictures to ITmages.ru"
HOMEPAGE="http://www.gnu.org/software/sed/sed.html"
EGIT_REPO_URI="git://github.com/itmages/itmages-service.git"

LICENSE="GPL-3"
SLOT="0"
KEYWORDS="~amd64 ~x86"

RDEPEND="dev-lang/python
         dev-python/pycurl
         dev-python/dbus-python
         dev-python/lxml
         dev-python/pygobject"
PYTHON_DEPEND="2"

src_configure() {
    econf \
    --bindir="${EPREFIX}"/bin
}

src_compile() {
    default

    if use python; then
        python_execute_function ./setup.py install --prefix=/usr
    fi
}

src_install() {
    emake DESTDIR="${D}" install
}

$ sudo emerge -pv net-misc/itmages-service

These are the packages that would be merged, in order:

Calculating dependencies... done!
[ebuild  N     ] dev-python/pycurl-7.19.0  USE="-examples" 70 kB
[ebuild  N     ] dev-python/dbus-python-1.0.0  USE="-doc -examples -test" 570 kB
[ebuild  N     ] net-misc/itmages-service-0.38::x-portage  USE="-applet" 0 kB

Total: 3 packages (3 new), Size of downloads: 640 kB
[razr@razr itmages-service]$ sudo emerge net-misc/itmages-service
Calculating dependencies... done!
>>> Verifying ebuild manifests
>>> Starting parallel fetch
>>> Emerging (1 of 3) dev-python/pycurl-7.19.0
>>> Installing (1 of 3) dev-python/pycurl-7.19.0
>>> Emerging (2 of 3) dev-python/dbus-python-1.0.0
>>> Installing (2 of 3) dev-python/dbus-python-1.0.0
>>> Emerging (3 of 3) net-misc/itmages-service-0.38 from x-portage
>>> Failed to emerge net-misc/itmages-service-0.38, Log file:
>>>  '/var/tmp/portage/net-misc/itmages-service-0.38/temp/build.log'
>>> Jobs: 2 of 3 complete, 1 failed                 Load avg: 1.20, 0.80, 0.68
 * Package:    net-misc/itmages-service-0.38
 * Repository: x-portage
 * USE:        amd64 consolekit elibc_glibc kernel_linux multilib policykit userland_GNU
 * FEATURES:   ccache sandbox splitdebug
>>> Unpacking source...
>>> Source unpacked in /var/tmp/portage/net-misc/itmages-service-0.38/work
>>> Preparing source in /var/tmp/portage/net-misc/itmages-service-0.38/work ...
>>> Source prepared.
 * ERROR: net-misc/itmages-service-0.38 failed (configure phase):
 *   The source directory '/var/tmp/portage/net-misc/itmages-service-0.38/work/itmages-service-0.38' doesn't exist
 * 
 * Call stack:
 *            ebuild.sh, line 701:  Called ebuild_main 'configure'
 *   phase-functions.sh, line 955:  Called dyn_configure
 *   phase-functions.sh, line 403:  Called die
 * The specific snippet of code:
 *              die "The source directory '${S}' doesn't exist"
 * 
 * If you need support, post the output of 'emerge --info =net-misc/itmages-service-0.38',
 * the complete build log and the output of 'emerge -pqv =net-misc/itmages-service-0.38'.
 * This ebuild is from an overlay named 'x-portage': '/usr/local/portage/'
 * The complete build log is located at '/var/tmp/portage/net-misc/itmages-service-0.38/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/net-misc/itmages-service-0.38/temp/environment'.
 * Working directory: '/var/tmp/portage/net-misc/itmages-service-0.38'
 * S: '/var/tmp/portage/net-misc/itmages-service-0.38/work/itmages-service-0.38'

 * Messages for package net-misc/itmages-service-0.38:

 * ERROR: net-misc/itmages-service-0.38 failed (configure phase):
 *   The source directory '/var/tmp/portage/net-misc/itmages-service-0.38/work/itmages-service-0.38' doesn't exist
 * 
 * Call stack:
 *            ebuild.sh, line 701:  Called ebuild_main 'configure'
 *   phase-functions.sh, line 955:  Called dyn_configure
 *   phase-functions.sh, line 403:  Called die
 * The specific snippet of code:
 *              die "The source directory '${S}' doesn't exist"
 * 
 * If you need support, post the output of 'emerge --info =net-misc/itmages-service-0.38',
 * the complete build log and the output of 'emerge -pqv =net-misc/itmages-service-0.38'.
 * This ebuild is from an overlay named 'x-portage': '/usr/local/portage/'
 * The complete build log is located at '/var/tmp/portage/net-misc/itmages-service-0.38/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/net-misc/itmages-service-0.38/temp/environment'.
 * Working directory: '/var/tmp/portage/net-misc/itmages-service-0.38'
 * S: '/var/tmp/portage/net-misc/itmages-service-0.38/work/itmages-service-0.38'

 * GNU info directory index is up-to-date.

PS: в отличии от PKGBUILD использую git репозиторий.

Проблема в том, что я не пойму как выполнить:

python2 ./setup.py install --root="${pkgdir}"

в ebuild.
Спасибо.