>>> Emerging : portage://games-action/brutal-legend-gog-2.0.0.3:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ unmask  portage://games-action/brutal-legend-gog-2.0.0.3

 └─step  2─┤ verify  media-libs/glu (unsatisfied constraints, assumed running)
             │ verify  media-libs/libsdl2 (unsatisfied constraints, assumed running)
             │ verify  sys-libs/glibc (unsatisfied constraints, assumed running)
             │ download  portage://games-action/brutal-legend-gog-2.0.0.3
             │           └─ file ─┤ 7.93 Gb  	 gog_brutal_legend_2.0.0.3.sh

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



>>> Assumptions taken during proving & planning:

  Package unmask (1 package):
  Add to /etc/portage/package.unmask:
    =games-action/brutal-legend-gog-2.0.0.3


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


>>> Domain assumptions

- REQUIRED_USE violation: 
  media-libs/glu
  No ebuild satisfies USE deps for portage://media-libs/glu-9.0.3 (use_dep_unsat)
  USE deps force:   [abi_x86_32]
  conflicts with profile use.mask / use.force
  required by: portage://games-action/brutal-legend-gog-2.0.0.3

- REQUIRED_USE violation: 
  media-libs/libsdl2
  No ebuild satisfies USE deps for portage://media-libs/libsdl2-2.32.10 (use_dep_unsat)
  USE deps force:   [abi_x86_32,joystick,opengl,sound,video]
  conflicts with profile use.mask / use.force
  required by: portage://games-action/brutal-legend-gog-2.0.0.3

- REQUIRED_USE violation: 
  sys-libs/glibc
  No ebuild satisfies USE deps for portage://sys-libs/glibc-2.44-r4 (use_dep_unsat)
  USE deps force:   [stack-realign]
  conflicts with profile use.mask / use.force
  required by: portage://games-action/brutal-legend-gog-2.0.0.3


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://games-action/brutal-legend-gog-2.0.0.3: unsatisfied_constraints dependency on media-libs/glu

Affected package: portage://games-action/brutal-legend-gog-2.0.0.3
Dependency: media-libs/glu
Phases: [run]

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

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 2 of 2): [9.0.3,9999]

Potential fix (suggestion):
  Review dependency metadata in portage://games-action/brutal-legend-gog-2.0.0.3; constraint set: [constraint(none,,[])].

---
Summary: portage://games-action/brutal-legend-gog-2.0.0.3: unsatisfied_constraints dependency on media-libs/libsdl2

Affected package: portage://games-action/brutal-legend-gog-2.0.0.3
Dependency: media-libs/libsdl2
Phases: [run]

Unsatisfiable constraint(s):
  media-libs/libsdl2-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 8 of 10): [2.30.11,2.30.7-r1,2.32.0,2.32.10,2.32.2,2.32.4,2.32.6,2.32.72]

Potential fix (suggestion):
  Review dependency metadata in portage://games-action/brutal-legend-gog-2.0.0.3; constraint set: [constraint(none,,[])].

---
Summary: portage://games-action/brutal-legend-gog-2.0.0.3: unsatisfied_constraints dependency on sys-libs/glibc

Affected package: portage://games-action/brutal-legend-gog-2.0.0.3
Dependency: sys-libs/glibc
Phases: [run]

Unsatisfiable constraint(s):
  >=sys-libs/glibc-2.7

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 8 of 22): [2.19-r3,2.31-r7,2.32-r8,2.33-r14,2.34-r14,2.35-r11,2.36-r8,2.37-r10]

Potential fix (suggestion):
  Review dependency metadata in portage://games-action/brutal-legend-gog-2.0.0.3; constraint set: [constraint(greaterequal,2.7,[])].