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gaia 1.11 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                 8.9.1       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           1.9.5       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "palmskog@gmail.com"
homepage: "https://github.com/coq-community/gaia"
dev-repo: "git+https://github.com/coq-community/gaia.git"
bug-reports: "https://github.com/coq-community/gaia/issues"
license: "MIT"
synopsis: "Implementation of books from Bourbaki's Elements of Mathematics in Coq"
description: """
Implementation of books from N. Bourbaki's Elements of Mathematics
in Coq using the Mathematical Components library, including set theory
and number theory."""
build: [make "-j%{jobs}%"]
install: [make "install"]
depends: [
  "coq" {>= "8.10" & < "8.13~"}
  "coq-mathcomp-ssreflect" {>= "1.11.0" & < "1.12~"}
  "coq-mathcomp-algebra" 
]
tags: [
  "category:Mathematics/Logic/Set theory"
  "keyword:Bourbaki"
  "keyword:set theory"
  "date:2020-09-09"
  "logpath:gaia"
]
authors: [
  "José Grimm"
  "Alban Quadrat"
  "Carlos Simpson"
]
url {
  src: "https://github.com/coq-community/gaia/archive/v1.11.tar.gz"
  checksum: "sha512=b7458fdfcddab546c75a66a741896f0e9bf45b8e79b98b9072a07427a8cbe025eca928d2a7f2bffe3c274feb88dda833a32ea311a762ba1d6ea8ed1120a7664f"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-gaia.1.11 coq.8.9.1

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.9.1).
The following dependencies couldn't be met:
  - coq-gaia -> coq >= 8.10 -> 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-gaia.1.11
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