Не компилируется firefox.

При попытке скомпилировать firefox-9.0.1:

>>> Install firefox-9.0.1 into /var/calculate/tmp/portage/www-client/firefox-9.0.1/image/ category www-client
 * Fallback PaX marking -m
 *      /var/calculate/tmp/portage/www-client/firefox-9.0.1/work/mozilla-release/obj-x86_64-unknown-linux-gnu/dist/bin/xpcshell
 TYPE    PAX   FILE 
ET_EXEC --mxe- /var/calculate/tmp/portage/www-client/firefox-9.0.1/work/mozilla-release/obj-x86_64-unknown-linux-gnu/dist/bin/xpcshell 
cp: cannot stat `/var/lib/layman/zugaina/www-client/firefox/files/gentoo-default-prefs.js-1': No such file or directory
 * ERROR: www-client/firefox-9.0.1 failed (install phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line  85:  Called src_install
 *   environment, line 6765:  Called die
 * The specific snippet of code:
 *       cp "${FILESDIR}"/gentoo-default-prefs.js-1 "${S}/${obj_dir}/dist/bin/defaults/pref/all-gentoo.js" || die;
 * 
 * If you need support, post the output of 'emerge --info =www-client/firefox-9.0.1',
 * the complete build log and the output of 'emerge -pqv =www-client/firefox-9.0.1'.
 * This ebuild is from an overlay named 'zugaina': '/var/lib/layman/zugaina/'
 * The complete build log is located at '/var/calculate/tmp/portage/www-client/firefox-9.0.1/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/www-client/firefox-9.0.1/temp/environment'.
 * S: '/var/calculate/tmp/portage/www-client/firefox-9.0.1/work/mozilla-release'
 * QA Notice: command not found:
 * 
 * 	/var/lib/layman/zugaina/www-client/firefox/firefox-9.0.1.ebuild: line 157: check-reqs_pkg_setup: command not found

>>> Failed to emerge www-client/firefox-9.0.1, Log file:

>>>  '/var/calculate/tmp/portage/www-client/firefox-9.0.1/temp/build.log'

 * Messages for package www-client/firefox-9.0.1:

 * Fallback PaX marking -m
 *      /var/calculate/tmp/portage/www-client/firefox-9.0.1/work/mozilla-release/obj-x86_64-unknown-linux-gnu/dist/bin/xpcshell
 * ERROR: www-client/firefox-9.0.1 failed (install phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line  85:  Called src_install
 *   environment, line 6765:  Called die
 * The specific snippet of code:
 *       cp "${FILESDIR}"/gentoo-default-prefs.js-1 "${S}/${obj_dir}/dist/bin/defaults/pref/all-gentoo.js" || die;
 * 
 * If you need support, post the output of 'emerge --info =www-client/firefox-9.0.1',
 * the complete build log and the output of 'emerge -pqv =www-client/firefox-9.0.1'.
 * This ebuild is from an overlay named 'zugaina': '/var/lib/layman/zugaina/'
 * The complete build log is located at '/var/calculate/tmp/portage/www-client/firefox-9.0.1/temp/build.log'.
 * The ebuild environment file is located at '/var/calculate/tmp/portage/www-client/firefox-9.0.1/temp/environment'.
 * S: '/var/calculate/tmp/portage/www-client/firefox-9.0.1/work/mozilla-release'