Package camlp4

Failed to find a solution:

no platform:
2024-09-12 08:32.54 [INFO] Solving for ocaml-base-compiler, ocaml,
                           camlp4 using opam_repository_commit 0329818dcfd3de1a722ea09eeeed94cd24caa375

2024-09-12 08:33.01 [INFO] base: eliminated all possibilities in 3.22 s

2024-09-12 08:33.01 [INFO] = base =

2024-09-12 08:33.01 [INFO] Can't find all required versions.
Selected: conf-which.1 ocaml-config.3 ocamlbuild.0.14.3
          camlp4&ocaml&ocaml-base-compiler ocaml-base-compiler
          ocaml-base-compiler
- camlp4 -> camlp4.4.03+1
    User requested = 4.03+1
- ocaml -> ocaml.4.03.1
    User requested <= 5.1.1
    camlp4 4.03+1 requires >= 4.03 & < 4.04
- ocaml-base-compiler -> (problem)
    User requested >= 4.04.1
    Rejected candidates:
      ocaml-base-compiler.5.2.0: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~rc1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta2: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~beta1: Requires ocaml = 5.2.0
      ocaml-base-compiler.5.2.0~alpha1: Requires ocaml = 5.2.0
      ...