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

Calculating dependencies ... done!
Dependency resolution took 0.83 s (backtrack: 0/20).


!!! All ebuilds that could satisfy "=games-action/descent1-data-1.4a-r1" have been masked.
!!! One of the following masked packages is required to complete your request:
- games-action/descent1-data-1.4a-r1::gentoo (masked by: descent-data license(s))
A copy of the 'descent-data' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/descent-data'.


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