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jsast 1.0.8 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               4.09.1      The OCaml compiler (virtual package)
ocaml-base-compiler 4.09.1      Official release 4.09.1
ocaml-config        1           OCaml Switch Configuration
ocamlfind           1.9.3       A library manager for OCaml
# opam file:
opam-version: "2.0"
maintainer: "jeromesimeon@me.com"
homepage: "https://github.com/querycert/jsast"
dev-repo: "git+https://github.com/querycert/jsast/tree/JsAst"
bug-reports: "https://github.com/querycert/jsast/issues"
authors: [
    "Martin Bodin <>"
    "Arthur Charguéraud <>"
    "Daniele Filaretti <>"
    "Philippa Gardner <>"
    "Sergio Maffeis <>"
    "Daiva Naudziuniene <>"
    "Alan Schmitt <>"
    "Gareth Smith <>"
    "Josh Auerbach <>"
    "Martin Hirzel <>"
    "Louis Mandel <>"
    "Avi Shinnar <>"
    "Jerome Simeon <>"
]
license: "BSD-2-Clause"
build: [
  [make "-j%{jobs}%"]
]
install: [
  [make "install"]
]
remove: ["rm" "-R" "%{lib}%/coq/user-contrib/JsAst"]
depends: [
  "ocaml"
  "coq" {>= "8.7.2"}
  "coq-flocq" {>= "2.6.0" & < "3.0~"}
]
synopsis: "A minimal JavaScript syntax tree carved out of the JsCert project"
flags: light-uninstall
url {
  src: "https://github.com/querycert/jsast/archive/v1.0.8.tar.gz"
  checksum: "md5=f30a1e20108cedd28c1370aa068186ed"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-jsast.1.0.8 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-jsast -> coq-flocq < 3.0~ -> coq < 8.9~ -> 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-jsast.1.0.8
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