>>> Emerging : portage://x11-libs/gtk-mac-integration-2.0.5-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ keyword portage://x11-libs/gtk-mac-integration-2.0.5-r1 (**)

 └─step  2─┤ verify  x11-libs/gtk+ (unsatisfied constraints, assumed installed)
             │ verify  x11-libs/gtk+ (unsatisfied constraints, assumed running)
             │ download  portage://x11-libs/gtk-mac-integration-2.0.5-r1
             │           └─ file ─┤ 298.49 Kb  	 gtk-mac-integration-2.0.5.tar.xz

Total: 2 actions (1 keyword, 1 download), grouped into 2 steps.
       298.49 Kb to be downloaded.



>>> Assumptions taken during proving & planning:

  Keyword acceptance (1 package):
  Add to /etc/portage/package.accept_keywords:
    x11-libs/gtk-mac-integration **


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


>>> Domain assumptions

- REQUIRED_USE violation: 
  x11-libs/gtk+
  No ebuild satisfies USE deps for portage://x11-libs/gtk+-3.24.52 (use_dep_unsat)
  USE deps force:   [aqua]
  conflicts with profile use.mask / use.force
  required by: portage://x11-libs/gtk-mac-integration-2.0.5-r1

- REQUIRED_USE violation: 
  x11-libs/gtk+
  No ebuild satisfies USE deps for portage://x11-libs/gtk+-3.24.52 (use_dep_unsat)
  USE deps force:   [aqua]
  conflicts with profile use.mask / use.force
  required by: portage://x11-libs/gtk-mac-integration-2.0.5-r1


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://x11-libs/gtk-mac-integration-2.0.5-r1: unsatisfied_constraints dependency on x11-libs/gtk+

Affected package: portage://x11-libs/gtk-mac-integration-2.0.5-r1
Dependency: x11-libs/gtk+
Phases: [install,run]

Unsatisfiable constraint(s):
  x11-libs/gtk+-:3

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 3 of 3): [2.24.33-r3,2.24.33-r4,3.24.52]

Potential fix (suggestion):
  Review dependency metadata in portage://x11-libs/gtk-mac-integration-2.0.5-r1; constraint set: [constraint(none,,[slot(3)])].