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unimath 20210807 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
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                 8.9.0       Formal proof management system
num                 1.4         The legacy Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.08.1      The OCaml compiler (virtual package)
ocaml-base-compiler 4.08.1      Official release 4.08.1
ocaml-config        1           OCaml Switch Configuration
ocamlfind           1.9.6       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "The UniMath Development Team"
homepage: "https://github.com/UniMath/UniMath"
dev-repo: "git+https://github.com/UniMath/UniMath.git"
bug-reports: "https://github.com/UniMath/UniMath/issues"
license: "Kind of MIT"
authors: ["The UniMath Development Team"]
build: [make "BUILD_COQ=no" "-j%{jobs}%"]
install: [make "BUILD_COQ=no" "install"]
depends: [
  "ocaml"
  "coq" {>= "8.12.2"}
]
synopsis: "Library of Univalent Mathematics"
url {
  src: "https://github.com/UniMath/UniMath/archive/refs/tags/v20210807.tar.gz"
  checksum: "sha512=db2f660aea7e4c7eda6d10173173b80d357f994ff148102df6d20b0098e4c4e3ec17f9956700e118b7ff043a4ef29827cccd1fe9f5f54b5f5deaebcac60c666c"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-unimath.20210807 coq.8.9.0

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.9.0).
The following dependencies couldn't be met:
  - coq-unimath -> coq >= 8.12.2 -> ocaml >= 4.09.0
      base of this switch (use `--unlock-base' to force)
  - coq-unimath -> coq >= 8.12.2 -> coq-core -> 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-unimath.20210807
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