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io-system-ocaml 2.2.0 Not compatible 👼

Context

# Packages matching: installed
# Name                   # Installed # Synopsis
base-bigarray            base
base-threads             base
base-unix                base
conf-findutils           1           Virtual package relying on findutils
conf-gmp                 4           Virtual package relying on a GMP lib system installation
coq                      8.15.2      Formal proof management system
dune                     3.6.1       Fast, portable, and opinionated build system
ocaml                    4.06.1      The OCaml compiler (virtual package)
ocaml-base-compiler      4.06.1      Official 4.06.1 release
ocaml-config             1           OCaml Switch Configuration
ocaml-secondary-compiler 4.08.1-1    OCaml 4.08.1 Secondary Switch Compiler
ocamlfind                1.9.1       A library manager for OCaml
ocamlfind-secondary      1.9.1       Adds support for ocaml-secondary-compiler to ocamlfind
zarith                   1.12        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
maintainer: "dev@clarus.me"
homepage: "https://github.com/clarus/io-system-ocaml"
dev-repo: "git+https://github.com/clarus/io-system-ocaml.git"
bug-reports: "https://github.com/clarus/io-system-ocaml/issues"
authors: ["Guillaume Claret"]
license: "MIT"
build: [
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
depends: [
  "lwt" {< "5"}
  "ocaml" {>= "4.00.0" & < "4.06.0"}
  "ocamlbuild" {build}
  "ocamlfind" {build}
  "num"
]
conflicts: [
  "ocaml-secondary-compiler"
]
tags: [
  "date:2015-03-19"
  "keyword:effects"
  "keyword:extraction"
]
synopsis: "Extraction to OCaml of system effects"
url {
  src: "https://github.com/coq-io/system-ocaml/archive/2.2.0.tar.gz"
  checksum: "md5=14ca13ea6480df063255ebcadc0d4ca6"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-io-system-ocaml.2.2.0 coq.8.15.2

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.15.2).
The following dependencies couldn't be met:
  - coq-io-system-ocaml -> ocaml < 4.06.0
      base of this switch (use `--unlock-base' to force)
No solution found, exiting

Dry install without Coq/switch base, to test if the problem was incompatibility with the current Coq/OCaml version:

Command: opam remove -y coq; opam install -y --show-action --unlock-base coq-io-system-ocaml.2.2.0
Return code: 0

Install dependencies

Command: true
Return code: 0
Duration: 0 s

Install 🚀

Command: true
Return code: 0
Duration: 0 s

Installation size

No files were installed.

Uninstall 🧹

Command: true
Return code: 0
Missing removes: none
Wrong removes: none