default-linux/amd64/2004.3
# emerge -n '>=sys-apps/portage-2.0.51'
# cd /etc/
# rm make.profile
# ln -s ../usr/portage/profiles/default-linux/amd64/2004.3 make.profile

Your current profile is subject to removal any time after 2005.07.01.
If for any reason you require this deprecated profile, please discuss it
on gentoo-amd64@gentoo.org so the issue blocking your transition can be
addressed.