trinity ~ # echo "app-misc/DFBTerm ~* *" >> /etc/portage/package.keywords
trinity ~ # emerge -av DFBTerm

These are the packages that would be merged, in order:

Calculating dependencies \
!!! All ebuilds that could satisfy "DFBTerm" have been masked.
!!! One of the following masked packages is required to complete your request:
- app-misc/DFBTerm-9999 (masked by: missing keyword)

For more information, see MASKED PACKAGES section in the emerge man page or
refer to the Gentoo Handbook.

trinity ~ #