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corn 8.12.0 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              4.04+1       Camlp4 is a system for writing extensible parsers for programming languages
conf-findutils      1            Virtual package relying on findutils
coq                 8.5.0~camlp4 Formal proof management system
num                 0            The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.04.2       The OCaml compiler (virtual package)
ocaml-base-compiler 4.04.2       Official 4.04.2 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: "https://github.com/coq-community/corn"
dev-repo: "git+https://github.com/coq-community/corn.git"
bug-reports: "https://github.com/coq-community/corn/issues"
license: "GPL-2.0-only"
synopsis: "The Coq Constructive Repository at Nijmegen"
description: """
CoRN includes the following parts:
- Algebraic Hierarchy
  An axiomatic formalization of the most common algebraic
  structures, including setoids, monoids, groups, rings,
  fields, ordered fields, rings of polynomials, real and
  complex numbers
- Model of the Real Numbers
  Construction of a concrete real number structure
  satisfying the previously defined axioms
- Fundamental Theorem of Algebra
  A proof that every non-constant polynomial on the complex
  plane has at least one root
- Real Calculus
  A collection of elementary results on real analysis,
  including continuity, differentiability, integration,
  Taylor's theorem and the Fundamental Theorem of Calculus
- Exact Real Computation
  Fast verified computation inside Coq. This includes: real numbers, functions,
  integrals, graphs of functions, differential equations.
"""
build: [
  ["./configure.sh"]
  [make "-j%{jobs}%"]
]
install: [make "install"]
depends: [
  "coq" {>= "8.7" & < "8.13~"}
  "coq-math-classes" {>= "8.8.1"}
  "coq-bignums"
]
tags: [
  "category:Mathematics/Algebra"
  "category:Mathematics/Real Calculus and Topology"
  "category:Mathematics/Exact Real computation"
  "keyword:constructive mathematics"
  "keyword:algebra"
  "keyword:real calculus"
  "keyword:real numbers"
  "keyword:Fundamental Theorem of Algebra"
  "logpath:CoRN"
  "date:2020-09-03"
]
authors: [
  "Evgeny Makarov"
  "Robbert Krebbers"
  "Eelis van der Weegen"
  "Bas Spitters"
  "Jelle Herold"
  "Russell O'Connor"
  "Cezary Kaliszyk"
  "Dan Synek"
  "Luís Cruz-Filipe"
  "Milad Niqui"
  "Iris Loeb"
  "Herman Geuvers"
  "Randy Pollack"
  "Freek Wiedijk"
  "Jan Zwanenburg"
  "Dimitri Hendriks"
  "Henk Barendregt"
  "Mariusz Giero"
  "Rik van Ginneken"
  "Dimitri Hendriks"
  "Sébastien Hinderer"
  "Bart Kirkels"
  "Pierre Letouzey"
  "Lionel Mamane"
  "Nickolay Shmyrev"
  "Vincent Semeria"
]
url {
  src: "https://github.com/coq-community/corn/archive/8.12.0.tar.gz"
  checksum: "sha512=759ab0e0fc4b4ee8b6029d0090cf8b7ee731def85aacc9d240dfb29d4692e4f41821463f8d8180202587ee9b7c9239be8512c24b0594537e56aa235f31923ec3"
}

Lint

Command
true
Return code
0

Dry install 🏜️

Dry install with the current Coq version:

Command
opam install -y --show-action coq-corn.8.12.0 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 >= 8.7 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-corn -> coq >= 8.7 -> 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.8.12.0
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