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metacoq-pcuic 1.0~alpha1+8.9 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
base-threads        base
base-unix           base
camlp5              7.14        Preprocessor-pretty-printer of OCaml
conf-findutils      1           Virtual package relying on findutils
conf-perl           2           Virtual package relying on perl
coq                 8.7.1+1     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: "matthieu.sozeau@inria.fr"
homepage: "https://metacoq.github.io/metacoq"
dev-repo: "git+https://github.com/MetaCoq/metacoq.git#coq-8.8"
bug-reports: "https://github.com/MetaCoq/metacoq/issues"
authors: ["Abhishek Anand <aa755@cs.cornell.edu>"
          "Simon Boulier <simon.boulier@inria.fr>"
          "Cyril Cohen <cyril.cohen@inria.fr>"
          "Yannick Forster <forster@ps.uni-saarland.de>"
          "Fabian Kunze <fkunze@fakusb.de>"
          "Gregory Malecha <gmalecha@gmail.com>"
          "Matthieu Sozeau <matthieu.sozeau@inria.fr>"
          "Nicolas Tabareau <nicolas.tabareau@inria.fr>"
          "Théo Winterhalter <theo.winterhalter@inria.fr>"
]
license: "MIT"
build: [
  ["sh" "./configure.sh"]
  [make "-j%{jobs}%" "-C" "pcuic"]
]
install: [
  [make "-C" "pcuic" "install"]
]
depends: [
  "ocaml" {> "4.02.3"}
  "coq" {>= "8.9" & < "8.10~"}
  "coq-equations" {>= "1.2"}
  "coq-metacoq-template" {= version}
  "coq-metacoq-checker" {= version}
]
synopsis: "A type system equivalent to Coq's and its metatheory"
description: """
MetaCoq is a meta-programming framework for Coq.
The PCUIC module provides a cleaned-up specification of Coq's typing algorithm along
with a certified typechecker for it. This module includes the standard metatheory of
PCUIC: Weakening, Substitution, Confluence and Subject Reduction are proven here.
"""
url {
  src: "https://github.com/MetaCoq/metacoq/archive/1.0-alpha+8.9.tar.gz"
  checksum: "sha256=899ef4ee73b1684a0f1d2e37ab9ab0f9b24424f6d8a10a10efd474c0ed93488e"
}

Lint

Command
true
Return code
0

Dry install 🏜️

Dry install with the current Coq version:

Command
opam install -y --show-action coq-metacoq-pcuic.1.0~alpha1+8.9 coq.8.7.1+1
Return code
5120
Output
[NOTE] Package coq is already installed (current version is 8.7.1+1).
The following dependencies couldn't be met:
  - coq-metacoq-pcuic -> coq-metacoq-template = 1.0~alpha1+8.9 -> coq >= 8.9 -> 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-metacoq-pcuic.1.0~alpha1+8.9
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