The unpack helper now supports the xz file extension.

Beginning with EAPI 3, all helpers use ${ED} instead of ${D} when appropriate. For example, see econf and einstall below.

${ECONF_SOURCE:-.}/configure \ ${CBUILD:+--build=${CBUILD}} \ --datadir="${EPREFIX}"/usr/share \ --host=${CHOST} \ --infodir="${EPREFIX}"/usr/share/info \ --localstatedir="${EPREFIX}"/var/lib \ --prefix="${EPREFIX}"/usr \ --mandir="${EPREFIX}"/usr/share/man \ --sysconfdir="${EPREFIX}"/etc \ ${CTARGET:+--target=${CTARGET}} \ ${EXTRA_ECONF} \ configure options || die "econf failed"

Note that, for make-based packages, 'emake install DESTDIR=${D}' (with DESTDIR=${D} rather than ${ED}) is still preferred over einstall. make \ prefix=${ED}/usr \ datadir=${ED}/usr/share \ infodir=${ED}/usr/share/info \ localstatedir=${ED}/var/lib \ mandir=${ED}/usr/share/man \ sysconfdir=${ED}/etc \ ${EXTRA_EINSTALL} \ make options \ install

Variable Name Description ED Contains the path "${D%/}${EPREFIX}/" for convenience purposes. For EAPI values prior to EAPI 3 which do not support ${ED}, helpers use ${D} where they would otherwise use ${ED}. Do not modify this variable. EPREFIX Contains the offset that this Portage was configured for during installation. The offset is sometimes necessary in an ebuild or eclass, and is available in such cases as ${EPREFIX}. EPREFIX does not contain a trailing slash, therefore an absent offset is represented by the empty string. Do not modify this variable. EROOT Contains "${ROOT%/}${EPREFIX}/" for convenience purposes. Do not modify this variable.