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239 lines
6.5 KiB
239 lines
6.5 KiB
# Copyright 1999-2017 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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EAPI=6
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inherit prefix
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DESCRIPTION="Chained EPREFIX bootstrapping utility"
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HOMEPAGE="https://prefix.gentoo.org/"
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SRC_URI=""
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LICENSE="GPL-3"
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SLOT="0"
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KEYWORDS="~ppc-aix ~x64-cygwin ~amd64-linux ~x86-linux ~sparc-solaris ~x86-solaris"
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IUSE=""
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DEPEND=""
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RDEPEND="sys-apps/portage[prefix-chaining]"
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S="${WORKDIR}"
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src_install() {
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eprefixify ${PN}
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sed -e "s,@GENTOO_PORTAGE_CHOST@,${CHOST}," -i ${PN}
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dobin ${PN}
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}
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src_unpack() {
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{ cat > "${PN}" || die; } <<'EOF'
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#!/usr/bin/env bash
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PARENT_EPREFIX="@GENTOO_PORTAGE_EPREFIX@"
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PARENT_CHOST="@GENTOO_PORTAGE_CHOST@"
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CHILD_EPREFIX=
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CHILD_PROFILE=
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DO_MINIMAL=no
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DO_SOURCES=no
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PORT_TMPDIR=
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#
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# get ourselfs the functions.sh script for ebegin/eend/etc.
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#
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for f in \
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/lib/gentoo/functions.sh \
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/etc/init.d/functions.sh \
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/sbin/functions.sh \
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; do
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if [[ -r ${PARENT_EPREFIX}${f} ]]; then
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. "${PARENT_EPREFIX}${f}"
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f=found
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break
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fi
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done
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if [[ ${f} != found ]]; then
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echo "Cannot find Gentoo functions, aborting." >&2
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exit 1
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fi
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for arg in "$@"; do
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case "${arg}" in
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--eprefix=*) CHILD_EPREFIX="${arg#--eprefix=}" ;;
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--profile=*) CHILD_PROFILE="${arg#--profile=}" ;;
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--sources) DO_SOURCES=yes ;;
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--portage-tmpdir=*) PORT_TMPDIR="${arg#--portage-tmpdir=}" ;;
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--help)
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einfo "$0 usage:"
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einfo " --eprefix=[PATH] Path to new EPREFIX to create chained to the prefix"
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einfo " where this script is installed (${PARENT_EPREFIX})"
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einfo " --profile=[PATH] The absolute path to the profile to use. This path"
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einfo " must point to a directory within ${PARENT_EPREFIX}"
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einfo " --sources inherit 'source' statements from the parent make.conf"
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einfo " --portage-tmpdir=DIR use DIR as portage temporary directory."
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exit 0
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;;
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esac
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done
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#
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# sanity check of given values
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#
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test -n "${CHILD_EPREFIX}" || { eerror "no eprefix argument given"; exit 1; }
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test -d "${CHILD_EPREFIX}" && { eerror "${CHILD_EPREFIX} already exists"; exit 1; }
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test -n "${CHILD_PROFILE}" || { eerror "no profile argument given"; exit 1; }
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test -d "${CHILD_PROFILE}" || { eerror "${CHILD_PROFILE} does not exist"; exit 1; }
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if test -n "${PORT_TMPDIR}"; then
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if ! test -d "${PORT_TMPDIR}"; then
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einfo "creating temporary directory ${PORT_TMPDIR}"
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mkdir -p "${PORT_TMPDIR}"
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fi
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fi
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einfo "creating chained prefix ${CHILD_EPREFIX}"
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#
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# functions needed below.
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#
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eend_exit() {
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eend $1
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[[ $1 != 0 ]] && exit 1
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}
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#
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# create the directories required to bootstrap the least.
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#
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ebegin "creating directory structure"
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(
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set -e
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mkdir -p "${CHILD_EPREFIX}"/etc/portage/profile/use.mask
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mkdir -p "${CHILD_EPREFIX}"/etc/portage/profile/use.force
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mkdir -p "${CHILD_EPREFIX}"/var/log
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)
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eend_exit $?
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#
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# create a make.conf and set PORTDIR and PORTAGE_TMPDIR
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#
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ebegin "creating make.conf"
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(
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set -e
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echo "#"
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echo "# The following values where taken from the parent prefix's"
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echo "# environment. Feel free to adopt them as you like."
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echo "#"
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echo "CFLAGS=\"$(portageq envvar CFLAGS)\""
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echo "CXXFLAGS=\"$(portageq envvar CXXFLAGS)\""
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echo "MAKEOPTS=\"$(portageq envvar MAKEOPTS)\""
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niceness=$(portageq envvar PORTAGE_NICENESS || true)
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[[ -n ${niceness} ]] &&
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echo "PORTAGE_NICENESS=\"${niceness}\""
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echo "USE=\"prefix-chain\""
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echo
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echo "# Mirrors from parent prefix."
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echo "GENTOO_MIRRORS=\"$(portageq envvar GENTOO_MIRRORS || true)\""
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echo
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echo "#"
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echo "# Below comes the chained-prefix setup. Only change things"
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echo "# if you know exactly what you are doing!"
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echo "# by default, only DEPEND is inherited from the parent in"
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echo "# the chain. if you want more, make it a comma seperated"
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echo "# list - like this: DEPEND,RDEPEND,PDEPEN - which would the"
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echo "# all that is possible"
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echo "#"
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echo "PORTDIR=\"$(portageq envvar PORTDIR)\""
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echo "SYNC=\"$(portageq envvar SYNC || true)\""
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if test -z "${PORT_TMPDIR}"; then
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case "${CHILD_PROFILE}" in
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*winnt*) echo "PORTAGE_TMPDIR=/var/tmp" ;;
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*) echo "PORTAGE_TMPDIR=\"${CHILD_EPREFIX}/var/tmp\"" ;;
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esac
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else
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echo "PORTAGE_TMPDIR=\"${PORT_TMPDIR}\""
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fi
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echo "READONLY_EPREFIX=\"${PARENT_EPREFIX}:DEPEND\""
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if test "${DO_SOURCES}" == "yes"; then
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# don't fail if nothing found
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for f in /etc/portage/make.conf /etc/make.conf; do
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if [[ -r ${PARENT_EPREFIX}${f} ]]; then
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egrep "^source .*" "${PARENT_EPREFIX}${f}" 2>/dev/null || true
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break;
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fi
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done
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fi
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) > "${CHILD_EPREFIX}"/etc/portage/make.conf
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eend_exit $?
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ebegin "creating profile/use.mask"
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cat > "${CHILD_EPREFIX}"/etc/portage/profile/use.mask/prefix-chain-setup <<-'EOM'
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# masked in base profile, unmask here
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-prefix-chain
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EOM
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eend_exit $?
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ebegin "creating profile/use.force"
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cat > "${CHILD_EPREFIX}"/etc/portage/profile/use.force/prefix-chain-setup <<-'EOM'
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# masked in base profile, force here
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prefix-chain
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EOM
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eend_exit $?
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#
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# create the make.profile symlinks.
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#
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ebegin "creating make.profile"
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(
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ln -s "${CHILD_PROFILE}" "${CHILD_EPREFIX}/etc/portage/make.profile"
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)
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eend_exit $?
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#
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# adjust permissions of generated files.
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#
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ebegin "adjusting permissions"
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(
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chmod 644 "${CHILD_EPREFIX}"/etc/portage/make.conf
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)
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eend_exit $?
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#
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# now merge some basics.
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#
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ebegin "installing required basic packages"
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(
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# this -pv is there to avoid the global update output, which is
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# there on the first emerge run. (thus, just cosmetics).
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PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -p1qO baselayout-prefix > /dev/null 2>&1
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set -e
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PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -1qO \
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gentoo-functions baselayout-prefix gnuconfig prefix-chain-utils
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# merge with the parent's chost. this forces the use of the parent
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# compiler, which generally would be illegal - this is an exception.
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# This is required for example on winnt, because the wrapper has to
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# be able to use/resolve symlinks, etc. native winnt binaries miss that
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# ability, but interix binaries don't.
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PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" CHOST="${PARENT_CHOST}" emerge -1qO gcc-config
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# select the chain wrapper profile from gcc-config
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env -i "$(type -P bash)" "${CHILD_EPREFIX}"/usr/bin/gcc-config 1
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# do this _AFTER_ selecting the correct compiler!
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PORTAGE_CONFIGROOT="${CHILD_EPREFIX}" EPREFIX="${CHILD_EPREFIX}" emerge -1qO libtool
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)
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eend_exit $?
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#
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# wow, all ok :)
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#
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ewarn
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ewarn "all done. don't forget to tune ${CHILD_EPREFIX}/etc/portage/make.conf."
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ewarn "to enter the new prefix, run \"${CHILD_EPREFIX}/startprefix\"."
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ewarn
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EOF
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}
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