>>> Emerging : portage://games-emulation/zsnes-2.2.3:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ unmask  portage://games-emulation/zsnes-2.2.3

 └─step  2─┤ verify  media-libs/libglvnd (unsatisfied constraints, assumed installed)
             │ verify  media-libs/libglvnd (unsatisfied constraints, assumed running)
             │ verify  media-libs/libpng (unsatisfied constraints, assumed installed)
             │ verify  media-libs/libpng (unsatisfied constraints, assumed running)
             │ verify  media-libs/libsdl3 (unsatisfied constraints, assumed installed)
             │ verify  media-libs/libsdl3 (unsatisfied constraints, assumed running)
             │ download  portage://games-emulation/zsnes-2.2.3
             │           └─ file ─┤ 1.27 Mb  	 zsnes-2.2.3.tar.gz

Total: 2 actions (1 unmask, 1 download), grouped into 2 steps.
       1.27 Mb to be downloaded.



>>> Assumptions taken during proving & planning:

  Package unmask (1 package):
  Add to /etc/portage/package.unmask:
    =games-emulation/zsnes-2.2.3


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


>>> Domain assumptions

- REQUIRED_USE violation: 
  media-libs/libglvnd
  No ebuild satisfies USE deps for portage://media-libs/libglvnd-1.7.0 (use_dep_unsat)
  USE deps force:   [X,abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3

- REQUIRED_USE violation: 
  media-libs/libglvnd
  No ebuild satisfies USE deps for portage://media-libs/libglvnd-1.7.0 (use_dep_unsat)
  USE deps force:   [X,abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3

- REQUIRED_USE violation: 
  media-libs/libpng
  No ebuild satisfies USE deps for portage://media-libs/libpng-1.6.59-r1 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3

- REQUIRED_USE violation: 
  media-libs/libpng
  No ebuild satisfies USE deps for portage://media-libs/libpng-1.6.59-r1 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3

- REQUIRED_USE violation: 
  media-libs/libsdl3
  No ebuild satisfies USE deps for portage://media-libs/libsdl3-3.4.18 (use_dep_unsat)
  USE deps force:   [abi_x86_32,opengl]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3

- REQUIRED_USE violation: 
  media-libs/libsdl3
  No ebuild satisfies USE deps for portage://media-libs/libsdl3-3.4.18 (use_dep_unsat)
  USE deps force:   [abi_x86_32,opengl]
  conflicts with profile use.mask / use.force
  required by: portage://games-emulation/zsnes-2.2.3


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://games-emulation/zsnes-2.2.3: unsatisfied_constraints dependency on media-libs/libglvnd

Affected package: portage://games-emulation/zsnes-2.2.3
Dependency: media-libs/libglvnd
Phases: [install,run]

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

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 2 of 2): [1.7.0,9999]

Potential fix (suggestion):
  Review dependency metadata in portage://games-emulation/zsnes-2.2.3; constraint set: [constraint(none,,[])].

---
Summary: portage://games-emulation/zsnes-2.2.3: unsatisfied_constraints dependency on media-libs/libpng

Affected package: portage://games-emulation/zsnes-2.2.3
Dependency: media-libs/libpng
Phases: [install,run]

Unsatisfiable constraint(s):
  media-libs/libpng-:=

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 3 of 3): [1.6.55,1.6.58,1.6.59-r1]

Potential fix (suggestion):
  Review dependency metadata in portage://games-emulation/zsnes-2.2.3; constraint set: [constraint(none,,[any_same_slot])].

---
Summary: portage://games-emulation/zsnes-2.2.3: unsatisfied_constraints dependency on media-libs/libsdl3

Affected package: portage://games-emulation/zsnes-2.2.3
Dependency: media-libs/libsdl3
Phases: [install,run]

Unsatisfiable constraint(s):
  media-libs/libsdl3-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 3 of 3): [3.2.30,3.4.16,3.4.18]

Potential fix (suggestion):
  Review dependency metadata in portage://games-emulation/zsnes-2.2.3; constraint set: [constraint(none,,[])].