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multiplier 8.5.0 Not compatible 👼

Context

# Packages matching: installed
# Name                # Installed # Synopsis
base-bigarray         base
base-threads          base
base-unix             base
conf-gmp              4           Virtual package relying on a GMP lib system installation
coq                   8.17.0      The Coq Proof Assistant
coq-core              8.17.0      The Coq Proof Assistant -- Core Binaries and Tools
coq-stdlib            8.17.0      The Coq Proof Assistant -- Standard Library
coqide-server         8.17.0      The Coq Proof Assistant, XML protocol server
dune                  3.13.0      Fast, portable, and opinionated build system
ocaml                 4.14.0      The OCaml compiler (virtual package)
ocaml-base-compiler   4.14.0      Official release 4.14.0
ocaml-config          2           OCaml Switch Configuration
ocaml-options-vanilla 1           Ensure that OCaml is compiled with no special options enabled
ocamlfind             1.9.6       A library manager for OCaml
zarith                1.13        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
maintainer: "matej.kosik@inria.fr"
homepage: "https://github.com/coq-contribs/multiplier"
license: "LGPL 2"
build: [make "-j%{jobs}%"]
install: [make "install"]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/Multiplier"]
depends: [
  "ocaml"
  "coq" {>= "8.5" & < "8.6~"}
]
tags: [ "keyword:hardware verification" "keyword:circuit" "category:Computer Science/Architecture" "category:Miscellaneous/Extracted Programs/Hardware" ]
authors: [ "Christine Paulin <>" ]
bug-reports: "https://github.com/coq-contribs/multiplier/issues"
dev-repo: "git+https://github.com/coq-contribs/multiplier.git"
synopsis: "Proof of a multiplier circuit"
flags: light-uninstall
url {
  src: "https://github.com/coq-contribs/multiplier/archive/v8.5.0.tar.gz"
  checksum: "md5=5dff8fca270a7aaf1752a9fa26efbb30"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-multiplier.8.5.0 coq.8.17.0

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.17.0).
The following dependencies couldn't be met:
  - coq-multiplier -> coq < 8.6~ -> ocaml < 4.06.0
      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-multiplier.8.5.0
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