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hott 8.15 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                 8.13.2      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
zarith              1.12        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
maintainer: [ "Jason Gross <jgross@mit.edu>" "Ali Caglayan <alizter@gmail.com>" ]
homepage: "http://homotopytypetheory.org/"
bug-reports: "https://github.com/HoTT/HoTT/issues"
license: "BSD-2-Clause"
build: [
  [make "-j%{jobs}%"]
]
install: [make "install"]
depends: [
  "ocaml"
  "ocamlfind" {build}
  "coq" {>= "8.15" & < "8.16~"}
]
authors: ["The Coq-HoTT Development Team"]
dev-repo: "git+https://github.com/HoTT/HoTT.git"
synopsis: "The Homotopy Type Theory library"
description: """
To use the HoTT library, the following flags must be passed to coqc:
   -noinit -indices-matter
To use the HoTT library in a project, add the following to _CoqProject:
   -arg -noinit
   -arg -indices-matter
"""
tags: [ "logpath:HoTT" ]
url {
  src: "https://github.com/HoTT/HoTT/archive/refs/tags/V8.15.tar.gz"
  checksum: "sha512=15e8a56dc1f94b01f6e8ab66289f79c4f130a1241007c2a2ede6d691f6d9846b274c3c9bcab7c5d41ff1fb5dbdc88d4e8301f8359c631809ebf41f2aa9858193"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-hott.8.15 coq.8.13.2

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.13.2).
The following dependencies couldn't be met:
  - coq-hott -> coq >= 8.15 -> 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-hott.8.15
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