>>> Emerging : portage://games-emulation/vgba-4.8-r1:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ unmask  portage://games-emulation/vgba-4.8-r1

 └─step  2─┤ verify  x11-libs/libX11 (unsatisfied constraints, assumed running)
             │ verify  x11-libs/libXext (unsatisfied constraints, assumed running)
             │ download  portage://games-emulation/vgba-4.8-r1
             │           └─ file ─┤ 214.42 Kb  	 VGBA48-Linux-Ubuntu-bin.tgz

 └─step  3─┤ install   portage://games-emulation/vgba-4.8-r1 (unmasked)

 └─step  4─┤ run     portage://games-emulation/vgba-4.8-r1

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



>>> Assumptions taken during proving & planning:

  Package unmask (1 package):
  Add to /etc/portage/package.unmask:
    =games-emulation/vgba-4.8-r1


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


>>> Domain assumptions

- REQUIRED_USE violation: 
  x11-libs/libX11
  No ebuild satisfies USE deps for portage://x11-libs/libX11-1.8.13 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/vgba-4.8-r1

- REQUIRED_USE violation: 
  x11-libs/libXext
  No ebuild satisfies USE deps for portage://x11-libs/libXext-1.3.7 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/vgba-4.8-r1


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://games-emulation/vgba-4.8-r1: unsatisfied_constraints dependency on x11-libs/libX11

Affected package: portage://games-emulation/vgba-4.8-r1
Dependency: x11-libs/libX11
Phases: [run]

Unsatisfiable constraint(s):
  x11-libs/libX11-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 1 of 1): [1.8.13]

Potential fix (suggestion):
  Review dependency metadata in portage://games-emulation/vgba-4.8-r1; constraint set: [constraint(none,,[])].

---
Summary: portage://games-emulation/vgba-4.8-r1: unsatisfied_constraints dependency on x11-libs/libXext

Affected package: portage://games-emulation/vgba-4.8-r1
Dependency: x11-libs/libXext
Phases: [run]

Unsatisfiable constraint(s):
  x11-libs/libXext-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 1 of 1): [1.3.7]

Potential fix (suggestion):
  Review dependency metadata in portage://games-emulation/vgba-4.8-r1; constraint set: [constraint(none,,[])].