>>> Emerging : portage://games-strategy/dominions2-2.16-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ unmask  portage://games-strategy/dominions2-2.16-r1

 └─step  2─┤ verify  media-libs/libsdl (unsatisfied constraints, assumed running)
             │ download  portage://games-strategy/dominions2-2.16-r1
             │           └─ file ─┤ 1.11 Kb  	 dominions2.png
             │                    │ 1.81 Mb  	 dompatch216_linux_x86.tgz

 └─step  3─┤ install   portage://games-strategy/dominions2-2.16-r1 (unmasked)
             │           └─ conf ─┤ USE = "-doc"

 └─step  4─┤ run     portage://games-strategy/dominions2-2.16-r1

Total: 4 actions (1 unmask, 1 download, 1 install, 1 run), grouped into 4 steps.
       1.81 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  Package unmask (1 package):
  Add to /etc/portage/package.unmask:
    =games-strategy/dominions2-2.16-r1


Error The proof for your build plan contains domain assumptions. Please verify:


>>> Domain assumptions

- REQUIRED_USE violation: 
  media-libs/libsdl
  No ebuild satisfies USE deps for portage://media-libs/libsdl-1.2.78 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-strategy/dominions2-2.16-r1


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://games-strategy/dominions2-2.16-r1: unsatisfied_constraints dependency on media-libs/libsdl

Affected package: portage://games-strategy/dominions2-2.16-r1
Dependency: media-libs/libsdl
Phases: [run]

Unsatisfiable constraint(s):
  media-libs/libsdl-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 2 of 2): [1.2.68,1.2.78]

Potential fix (suggestion):
  Review dependency metadata in portage://games-strategy/dominions2-2.16-r1; constraint set: [constraint(none,,[])].