ls -dl /var/db/pkg/sys-apps/portage-*
cd /etc/overlay/sys-apps
rm -fr portage-test-a portage-test-b
mkdir portage-test-a portage-test-b
cat > portage-test-a/portage-test-a-1.ebuild <<EOF
SLOT="0"
KEYWORDS="x86"
stuff() {
	echo -n "\$P.ebuild" > "\$d/file-\$1"
	ln -s "file-\$1" "\$d/symlink-\$1"
	mkdir "\$d/dir-\$1"
}
src_install() {
	d="\$D/var/tmp/portage/test"
	mkdir -p "\$d"
	stuff "portage-test"
	stuff "portage-test-\$PV"
	stuff "\$PN"
	stuff "\$P"
}
EOF
cp -ip portage-test-a/portage-test-a-1.ebuild portage-test-a/portage-test-a-2.ebuild
cp -ip portage-test-a/portage-test-a-1.ebuild portage-test-b/portage-test-b-1.ebuild
ebuild portage-test-a/portage-test-a-1.ebuild digest || exit
ebuild portage-test-b/portage-test-b-1.ebuild digest || exit
emerge -O =portage-test-a-1 && ls -l /var/tmp/portage/test || exit
emerge -O =portage-test-a-1 && ls -l /var/tmp/portage/test || exit
emerge -O =portage-test-a-2 && ls -l /var/tmp/portage/test || exit
FEATURES="-collision-protect" emerge -O =portage-test-b-1 && ls -l /var/tmp/portage/test || exit
emerge -C =portage-test-a-2 && ls -l /var/tmp/portage/test || exit