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hott 8.15 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: [ "Jason Gross <jgross@mit.edu>" "Ali Caglayan <alizter@gmail.com>" ]
homepage: "http://homotopytypetheory.org/"
bug-reports: "https://github.com/HoTT/Coq-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/Coq-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/Coq-HoTT/archive/refs/tags/V8.15.tar.gz"
  checksum: "sha512=b1a656f6dc9c620cd83e798b8719ef013a8dbb955b30fd14e87aa5f8826ba76707d4abdb40ae341182859cb266d52c6be15725c7c501de5e52f398884ad7c590"
}

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.8.5.0~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-hott -> coq >= 8.15 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-hott -> coq >= 8.15 -> coq-core -> 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-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