The Gentoo awstats ebuild has a use flag for geoip, which if selected brings in the dependency of dev-perl/Geo-IP.
However dev-perl/Geo-IP is being replaced by dev-perl/GeoIP2 which superseeds it.
The exact same ebuild situation exists for SpamAssassin, and there is talk about how to fix the same issue in that package here: https://bugs.gentoo.org/675494
So a possibly fix might be from this part of the ebuild:
|| ( dev-perl/GeoIP2 dev-perl/Geo-IP )
Or I suppose a straight requirement on only GeoIP2.