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corn 8.8.1 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed  # Synopsis
base-bigarray       base
base-num            base         Num library distributed with the OCaml compiler
base-threads        base
base-unix           base
camlp4              4.03+1       Camlp4 is a system for writing extensible parsers for programming languages
conf-findutils      1            Virtual package relying on findutils
conf-which          1            Virtual package relying on which
coq                 8.5.0~camlp4 Formal proof management system
num                 0            The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.03.0       The OCaml compiler (virtual package)
ocaml-base-compiler 4.03.0       Official 4.03.0 release
ocaml-config        1            OCaml Switch Configuration
ocamlbuild          0.14.2       OCamlbuild is a build system with builtin rules to easily build most OCaml projects
# opam file:
opam-version: "2.0"
maintainer: "b.a.w.spitters@gmail.com"
homepage: "http://corn.cs.ru.nl/"
dev-repo: "git+https://github.com/coq-community/corn.git"
bug-reports: "https://github.com/coq-community/corn/issues"
doc: "http://corn.cs.ru.nl/"
authors: "Corn development team"
license: "GPL 2"
build: [
  ["./configure.sh"]
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/CoRN"]
depends: [
  "ocaml"
  "coq" {>= "8.6" & < "8.9~"}
  "coq-math-classes" {>= "8.8.1"}
]
synopsis: "The CoRN library. A library for constructive analysis"
flags: light-uninstall
url {
  src: "https://github.com/coq-community/corn/archive/8.8.1.zip"
  checksum: "md5=8fb4305a8b6041aab68e503a9eb97510"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-corn.8.8.1 coq.8.5.0~camlp4

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.5.0~camlp4).
The following dependencies couldn't be met:
  - coq-corn -> coq >= 8.6 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-corn -> coq >= 8.6 -> coq-core -> ocaml >= 4.09.0
      base of this switch (use `--unlock-base' to force)
Your request can't be satisfied:
  - No available version of coq satisfies the constraints
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-corn.8.8.1
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