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

Calculating dependencies ... done!
Dependency resolution took 0.85 s (backtrack: 0/20).


!!! All ebuilds that could satisfy "=app-backup/spideroak-bin-7.5.0-r3" have been masked.
!!! One of the following masked packages is required to complete your request:
- app-backup/spideroak-bin-7.5.0-r3::gentoo (masked by: spideroak license(s))
A copy of the 'spideroak' license is located at '/Volumes/Disk 1/Repository/portage-git/licenses/spideroak'.


For more information, see the MASKED PACKAGES section in the emerge
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