[gentoo-user] emerge and running tests as non-root

[Mike Edenfield]

In trying to merge the most recent mysql, I am getting this notice at 
the start of the ebuild:

* Testing with FEATURES=-userpriv is no longer supported by upstream. 
Tests MUST be run as non-root.

Is there a way to actually do what it suggests using just emerge, or 
would I need to ebuild this package in two steps (ebuild test, then 
ebuild merge as root)?

--K