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mtac2 1.4+8.16 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                      8.15.2      Formal proof management system
dune                     3.4.1       Fast, portable, and opinionated build system
ocaml                    4.07.1      The OCaml compiler (virtual package)
ocaml-base-compiler      4.07.1      Official release 4.07.1
ocaml-config             1           OCaml Switch Configuration
ocaml-secondary-compiler 4.08.1-1    OCaml 4.08.1 Secondary Switch Compiler
ocamlfind                1.9.1       A library manager for OCaml
ocamlfind-secondary      1.9.1       Adds support for ocaml-secondary-compiler to ocamlfind
zarith                   1.12        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
maintainer: "beta.ziliani@gmail.com"
homepage: "https://github.com/Mtac2/Mtac2"
dev-repo: "git+https://github.com/Mtac2/Mtac2.git"
bug-reports: "https://github.com/Mtac2/Mtac2/issues"
authors: ["Beta Ziliani <beta.ziliani@gmail.com>" "Jan-Oliver Kaiser <janno@mpi-sws.org>" "Robbert Krebbers <mail@robbertkrebbers.nl>" "Yann Régis-Gianas <yrg@pps.univ-paris-diderot.fr>" "Derek Dreyer <dreyer@mpi-sws.org>"]
license: "MIT"
build: [
  ["coq_makefile" "-f" "_CoqProject" "-o" "Makefile"]
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
depends: [
  "ocaml"
  "coq" {>= "8.16" & < "8.17~"}
  "coq-unicoq" {>= "1.5" & < "2~"}
]
synopsis: "Mtac2: Typed Tactics for Coq"
tags: [
  "logpath:Mtac2"
  "date:2022-08-23"
]
url {
  src: "https://github.com/Mtac2/Mtac2/archive/v1.4-coq8.16.tar.gz"
  checksum: "sha512=f668ecbefe3144c04110d2b27a8fd38f0ac675c15824ac12e1b6d58e80078c64854ab1f787584dd9a596dc71311d70ba2cf5f9d9a8815427b4a7328e401fe6f5"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-mtac2.1.4+8.16 coq.8.15.2

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.15.2).
The following dependencies couldn't be met:
  - coq-mtac2 -> coq >= 8.16 -> ocaml >= 4.09.0
      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-mtac2.1.4+8.16
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