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qarith-stern-brocot 8.13.0 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                 8.10.2      Formal proof management system
num                 1.4         The legacy Num library for arbitrary-precision integer and rational arithmetic
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
ocamlfind           1.9.5       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "palmskog@gmail.com"
homepage: "https://github.com/coq-community/qarith-stern-brocot"
dev-repo: "git+https://github.com/coq-community/qarith-stern-brocot.git"
bug-reports: "https://github.com/coq-community/qarith-stern-brocot/issues"
license: "LGPL-2.1-or-later"
synopsis: "Binary rational numbers"
description: """
Development of rational numbers as finite binary lists and defining
field operations on them in two different ways: strict and lazy.
"""
build: [make "-j%{jobs}%"]
install: [make "install"]
depends: [
  "coq" {>= "8.12" & < "8.14~"}
]
tags: [
  "category:Mathematics/Arithmetic and Number Theory/Rational numbers"
  "category:Miscellaneous/Extracted Programs/Arithmetic"
  "keyword:rational numbers"
  "keyword:arithmetic"
  "keyword:field tactic"
  "keyword:binary lists"
  "keyword:Stern-Brocot"
  "logpath:QArithSternBrocot"
  "date:2021-08-03"
]
authors: [
  "Milad Niqui"
  "Yves Bertot"
]
url {
  src: "https://github.com/coq-community/qarith-stern-brocot/archive/v8.13.0.tar.gz"
  checksum: "sha512=aa7c783c05b8a1ea70c4949f6b370768fe38968ac89b03a1b62875f86a521256d162009d9a9e724d2577bb69ba9533ce2be94ed6100ac5f711d8481da70b417b"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-qarith-stern-brocot.8.13.0 coq.8.10.2

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.10.2).
The following dependencies couldn't be met:
  - coq-qarith-stern-brocot -> coq >= 8.12 -> 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-qarith-stern-brocot.8.13.0
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