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orb-stab 8.9.0 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
coq                 8.11.1      Formal proof management system
num                 1.4         The legacy Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.11.2      The OCaml compiler (virtual package)
ocaml-base-compiler 4.11.2      Official release 4.11.2
ocaml-config        1           OCaml Switch Configuration
ocamlfind           1.9.5       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "Hugo.Herbelin@inria.fr"
homepage: "https://github.com/coq-contribs/orb-stab"
license: "GNU Lesser Public License"
build: [make "-j%{jobs}%"]
install: [make "install"]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/OrbStab"]
depends: [
  "ocaml"
  "coq" {>= "8.9" & < "8.10~"}
  "coq-algebra" {>= "8.9" & < "8.10~"}
  "coq-lin-alg" {>= "8.9" & < "8.10~"}
]
tags: [
  "keyword: orbit"
  "keyword: stabilizer"
  "keyword: inclusion-exclusion"
  "category: Mathematics/Algebra"
  "date: 2008-01-5"
]
authors: [
  "Robert Kam <rkam2001@hotmail.com> [none]"
]
bug-reports: "https://github.com/coq-contribs/orb-stab/issues"
dev-repo: "git+https://github.com/coq-contribs/orb-stab.git"
synopsis: "Finite orbit-stabilizer theorem"
description: """
Finite orbit-stabilizer theorem, based on Rahbar Virk's lecture notes. A large portion of the work was a simplified version of the inclusion-exclusion principle. Requires Loic Pottier's Algebra contribution, and Jasper Stein's Linear Algebra contribution."""
flags: light-uninstall
url {
  src: "https://github.com/coq-contribs/orb-stab/archive/v8.9.0.tar.gz"
  checksum: "md5=fd5990aec63720702fa7e11037c7be07"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-orb-stab.8.9.0 coq.8.11.1

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.11.1).
The following dependencies couldn't be met:
  - coq-orb-stab -> coq < 8.10~ -> ocaml < 4.10
      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-orb-stab.8.9.0
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