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flocq 4.0.0 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed  # Synopsis
base-bigarray       base
base-num            base         Num library distributed with the OCaml compiler
base-ocamlbuild     base         OCamlbuild binary and libraries distributed with the OCaml compiler
base-threads        base
base-unix           base
camlp4              4.02+7       Camlp4 is a system for writing extensible parsers for programming languages
conf-findutils      1            Virtual package relying on findutils
conf-which          1            Virtual package relying on which
coq                 8.4.6~camlp4 Formal proof management system.
num                 0            The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.02.3       The OCaml compiler (virtual package)
ocaml-base-compiler 4.02.3       Official 4.02.3 release
ocaml-config        1            OCaml Switch Configuration
ocamlbuild          0            Build system distributed with the OCaml compiler since OCaml 3.10.0
# opam file:
opam-version: "2.0"
maintainer: "guillaume.melquiond@inria.fr"
homepage: "https://flocq.gitlabpages.inria.fr/"
dev-repo: "git+https://gitlab.inria.fr/flocq/flocq.git"
bug-reports: "https://gitlab.inria.fr/flocq/flocq/issues"
license: "LGPL-3.0-or-later"
build: [
  ["autoconf"] {dev}
  ["./configure"]
  ["./remake" "-j%{jobs}%"]
]
install: ["./remake" "install"]
depends: [
  "coq" {>= "8.12" & < "8.16~"}
  "conf-autoconf" {build & dev}
  ("conf-g++" {build} | "conf-clang" {build})
]
tags: [
  "keyword:floating-point arithmetic"
  "logpath:Flocq"
  "date:2021-11-05"
]
authors: [
  "Sylvie Boldo <sylvie.boldo@inria.fr>"
  "Guillaume Melquiond <guillaume.melquiond@inria.fr>"
]
synopsis: "A formalization of floating-point arithmetic for the Coq system"
url {
  src: "https://flocq.gitlabpages.inria.fr/releases/flocq-4.0.0.tar.gz"
  checksum: "sha512=fa58ea6d735cdb0b65dd7cd11daaebc3172145626d8e0accabddaf336c486f8e54b4af246aabb0c1731ebb8fe0d37c9e7a3892128b9aa3e744f93af48f923f05"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-flocq.4.0.0 coq.8.4.6~camlp4

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.4.6~camlp4).
The following dependencies couldn't be met:
  - coq-flocq -> coq >= 8.12 -> ocaml >= 4.05.0
      base of this switch (use `--unlock-base' to force)
  - coq-flocq -> coq >= 8.12 -> 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-flocq.4.0.0
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