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yalla 2.0.2 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
conf-gmp              4           Virtual package relying on a GMP lib system installation
coq                   dev         Formal proof management system
dune                  3.1.1       Fast, portable, and opinionated build system
ocaml                 4.12.1      The OCaml compiler (virtual package)
ocaml-base-compiler   4.12.1      Official release 4.12.1
ocaml-config          2           OCaml Switch Configuration
ocaml-options-vanilla 1           Ensure that OCaml is compiled with no special options enabled
ocamlfind             1.9.3       A library manager for OCaml
zarith                1.12        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
synopsis: "Yalla library"
description: """
  YALLA: an LL library for Coq
  Yet Another deep embedding of Linear Logic in Coq
"""
homepage: "https://perso.ens-lyon.fr/olivier.laurent/yalla/"
dev-repo: "git+https://github.com/olaure01/yalla.git"
bug-reports: "https://github.com/olaure01/yalla/issues"
doc: "https://perso.ens-lyon.fr/olivier.laurent/yalla/"
maintainer: "olivier.laurent@ens-lyon.fr"
authors: [
  "Olivier Laurent"
]
license: "LGPL-3.0-or-later"
depends: [
  "coq" { >= "8.13" & < "8.15" }
]
build: [
  ["./configure"]
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
url {
  src: "https://github.com/olaure01/yalla/archive/v2.0.2.tar.gz"
  checksum: "sha256=f8d18d3a12485605ee9530c17695a68b4401ecd472f4ac8bab510db9a98b3fc4"
}
tags: [
  "keyword:linear logic"
  "keyword:metatheory"
  "keyword:cut elimination"
  "category:Mathematics/Logic/Foundations"
  "date:2021-01-13"
  "logpath:Yalla"
]

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-yalla.2.0.2 coq.dev

Return code

5120

Output

[NOTE] Package coq is already installed (current version is dev).
The following dependencies couldn't be met:
  - coq-yalla -> coq < 8.15 -> ocaml < 4.12
      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-yalla.2.0.2
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