>>> Emerging : portage://dev-ml/ppxlib-0.33.0-r2:run?{[]}

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

Calculating dependencies... done!

 └─step  1─┤ download  portage://dev-lang/ocaml-4.14.2
             │           └─ file ─┤ 5.25 Mb  	 ocaml-4.14.2.tar.gz
             │ download  portage://dev-ml/dune-3.23.1
             │           └─ file ─┤ 3.54 Mb  	 dune-3.23.1.tar.gz
             │ download  portage://dev-ml/ocaml-compiler-libs-0.17.0
             │           └─ file ─┤ 4.89 Kb  	 ocaml-compiler-libs-0.17.0.tar.gz
             │ download  portage://dev-ml/ppx_derivers-1.2.1
             │           └─ file ─┤ 2.47 Kb  	 ppx_derivers-1.2.1.tar.gz
             │ download  portage://dev-ml/ppxlib-0.33.0-r2
             │           └─ file ─┤ 623.18 Kb  	 ppxlib-0.33.0.tar.gz
             │ download  portage://dev-ml/sexplib0-0.17.0-r2
             │           └─ file ─┤ 22.51 Kb  	 sexplib0-0.17.0.tar.gz
             │ download  portage://dev-ml/stdlib-shims-0.3.0
             │           └─ file ─┤ 9.92 Kb  	 stdlib-shims-0.3.0.tbz

Total: 7 actions (7 downloads), grouped into 1 step.
       9.44 Mb to be downloaded.



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


>>> Domain assumptions

- Unsatisfied constraints for install dependency: 
  >=dev-lang/ocaml-5.2.0
  dev-lang/ocaml

  required by: portage://dev-ml/ocaml-compiler-libs-0.17.0
  Known open bugs (2, showing 3):
    #984060  dev-ml/ppxlib-0.37.0-r1 with dev-lang/ocaml-5.5.1 - Failed to run command: dune : Unknown OCaml version 5.5.1
           https://bugs.gentoo.org/show_bug.cgi?id=984060
    #984049  dev-ml/zarith-1.14 compilation fails when compiling with dev-lang/ocaml-5.5.1 — ocamlmklib reporting unknown option: -Wl,-O1
           https://bugs.gentoo.org/show_bug.cgi?id=984049


>>> Bug report drafts (Gentoo Bugzilla)

---
Summary: portage://dev-ml/ocaml-compiler-libs-0.17.0: unsatisfied_constraints dependency on dev-lang/ocaml

Affected package: portage://dev-ml/ocaml-compiler-libs-0.17.0
Dependency: dev-lang/ocaml
Phases: [install]

Unsatisfiable constraint(s):
  >=dev-lang/ocaml-5.2.0
  dev-lang/ocaml-

Observed:
  portage-ng reports no available candidate satisfies the above constraint(s).
  Available versions in repo set (sample, first 4 of 4): [4.14.2,5.3.0-r1,5.4.0,5.5.1]

Potential fix (suggestion):
  Review dependency metadata in portage://dev-ml/ocaml-compiler-libs-0.17.0; constraint set: [constraint(greaterequal,5.2.0,[]),constraint(none,,[])].