[gentoo-user] ephemeral keyword override?

When I'm thinking about installing a package, I can say USE='foo' emerge -p some-cat/some-package to see what would happen, without changing any /etc files. Is there a similar way to specify a keyword override, without changing /etc/portage/package.accept_keywords? Something along the lines of

Re: [gentoo-user] ephemeral keyword override?

On Tue, 3 Oct 2017 09:03:06 -0700, Ian Zimmerman wrote: > When I'm thinking about installing a package, I can say > > USE='foo' emerge -p some-cat/some-package > > to see what would happen, without changing any /etc files. Is there a > similar way to specify a keyword override, without changing