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

Calculating dependencies ... done!
Dependency resolution took 0.84 s (backtrack: 1/20).


!!! All ebuilds that could satisfy "sci-astronomy/cdsclient" have been masked.
!!! One of the following masked packages is required to complete your request:
- sci-astronomy/cdsclient-3.8.4-r1::gentoo (masked by: all-rights-reserved license(s))
A copy of the 'all-rights-reserved' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/all-rights-reserved'.


(dependency required by "sci-astronomy/scamp-2.15.0::gentoo" [ebuild])
(dependency required by "=sci-astronomy/scamp-2.15.0" [argument])
For more information, see the MASKED PACKAGES section in the emerge
man page or refer to the Gentoo Handbook.