Package ocaml-variants

Failed to find a solution:

no platform:
2026-02-04 14:55.54 [INFO] Solving for ocaml-base-compiler,
                           ocaml-variants, constraints ocaml-base-compiler<=5.4.0,
                           ocaml-variants=5.2.2+trunk using opam_repository_commit 45c04602c2fc908af6d1b17ba39c7517d58cb274

2026-02-04 14:55.54 [INFO] base: eliminated all possibilities in 0.19 s

2026-02-04 14:55.54 [INFO] = base =

2026-02-04 14:55.54 [INFO] Can't find all required versions.
Selected: base-bigarray.base base-domains.base base-nnp.base
          base-threads.base base-unix.base host-arch-x86_64.1 ocaml-config.3
          ocaml-variants&ocaml-base-compiler system-mingw host-arch-x86_64
          ocaml-base-compiler ocaml base-domains ocaml-base-compiler
- ocaml -> ocaml.5.2.2
    ocaml-variants 5.2.2+trunk requires = 5.2.2
- ocaml-base-compiler -> (problem)
    User requested <= 5.4.0
    Rejected candidates:
      ocaml-base-compiler.5.4.0: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~rc1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~beta2: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~beta1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ocaml-base-compiler.5.4.0~alpha1: In same conflict class (ocaml-core-compiler) as ocaml-variants
      ...
- ocaml-variants -> ocaml-variants.5.2.2+trunk
    User requested = 5.2.2+trunk
- system-mingw -> (problem)
    No usable implementations:
      system-mingw.1: Availability condition not satisfied