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math-classes 8.18.0 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
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                 8.7.2       Formal proof management system
num                 0           The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.03.0      The OCaml compiler (virtual package)
ocaml-base-compiler 4.03.0      Official 4.03.0 release
ocaml-config        1           OCaml Switch Configuration
ocamlfind           1.9.6       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "b.a.w.spitters@gmail.com"
homepage: "https://github.com/coq-community/math-classes"
dev-repo: "git+https://github.com/coq-community/math-classes.git"
bug-reports: "https://github.com/coq-community/math-classes/issues"
license: "MIT"
synopsis: "A library of abstract interfaces for mathematical structures in Coq"
description: """
Math classes is a library of abstract interfaces for mathematical
structures, such as:
*  Algebraic hierarchy (groups, rings, fields, …)
*  Relations, orders, …
*  Categories, functors, universal algebra, …
*  Numbers: N, Z, Q, …
*  Operations, (shift, power, abs, …)
It is heavily based on Coq’s new type classes in order to provide:
structure inference, multiple inheritance/sharing, convenient
algebraic manipulation (e.g. rewriting) and idiomatic use of
notations.
"""
build: [
  [ "./configure.sh" ]
  [ make "-j%{jobs}%" ]
]
install: [make "install"]
depends: [
  "coq" {>= "8.11" & < "8.19~"}
  "coq-bignums" 
]
tags: [
  "logpath:MathClasses"
  "date:2023-09-29"
]
authors: [
  "Eelis van der Weegen"
  "Bas Spitters"
  "Robbert Krebbers"
]
url {
  src: "https://github.com/coq-community/math-classes/archive/refs/tags/8.18.0.tar.gz"
  checksum: "sha512=ee593e4f851e25b0396176b3ecf62c1c504cde06eedbefd8eef7e932cc21967ddf2b38a9a20087b4074203dc66312316c0b0748ae6605f6734c312a010297621"
}

Lint

Command
true
Return code
0

Dry install 🏜️

Dry install with the current Coq version:

Command
opam install -y --show-action coq-math-classes.8.18.0 coq.8.7.2
Return code
5120
Output
[NOTE] Package coq is already installed (current version is 8.7.2).
The following dependencies couldn't be met:
  - coq-math-classes -> coq >= 8.11 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-math-classes -> coq >= 8.11 -> 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-math-classes.8.18.0
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