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fssec-model 8.5.0 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
base-threads        base
base-unix           base
conf-findutils      1           Virtual package relying on findutils
conf-m4             1           Virtual package relying on m4
coq                 8.11.dev    Formal proof management system
num                 1.3         The legacy Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.06.1      The OCaml compiler (virtual package)
ocaml-base-compiler 4.06.1      Official 4.06.1 release
ocaml-config        1           OCaml Switch Configuration
ocamlfind           1.8.1       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "matej.kosik@inria.fr"
homepage: "https://github.com/coq-contribs/fssec-model"
license: "Proprietary"
build: [make "-j%{jobs}%"]
install: [make "install"]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/FSSecModel"]
depends: [
  "ocaml"
  "coq" {>= "8.5" & < "8.6~"}
]
tags: [ "keyword:security" "keyword:filesystem" "keyword:unix" "keyword:mls" "keyword:access control" "category:Computer Science/Operating Systems" "date:2002-04-24" ]
authors: [ "Maximiliano Cristiá <>" ]
bug-reports: "https://github.com/coq-contribs/fssec-model/issues"
dev-repo: "git+https://github.com/coq-contribs/fssec-model.git"
synopsis: "Formal verification of an extension of a UNIX compatible, secure filesystem"
flags: light-uninstall
url {
  src: "https://github.com/coq-contribs/fssec-model/archive/v8.5.0.tar.gz"
  checksum: "md5=3fffaefa8b49ba4de5f5379079e6969b"
}

Lint

Command
true
Return code
0

Dry install 🏜️

Dry install with the current Coq version:

Command
opam install -y --show-action coq-fssec-model.8.5.0 coq.8.11.dev
Return code
5120
Output
[NOTE] Package coq is already installed (current version is 8.11.dev).
The following dependencies couldn't be met:
  - coq-fssec-model -> coq < 8.6~ -> ocaml < 4.06.0
      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-fssec-model.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