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compcert 3.7 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-gmp            4           Virtual package relying on a GMP lib system installation
coq                 8.13.1      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
zarith              1.12        Implements arithmetic and logical operations over arbitrary-precision integers
# opam file:
opam-version: "2.0"
authors: "Xavier Leroy <xavier.leroy@inria.fr>"
maintainer: "Jacques-Henri Jourdan <jacques-Henri.jourdan@normalesup.org>"
homepage: "http://compcert.inria.fr/"
dev-repo: "git+https://github.com/AbsInt/CompCert.git"
bug-reports: "https://github.com/AbsInt/CompCert/issues"
license: "INRIA Non-Commercial License Agreement"
build: [
  ["./configure" "ia32-linux" {os = "linux"}
  "ia32-macosx" {os = "macos"}
  "ia32-cygwin" {os = "cygwin"}
  "-bindir" "%{bin}%"
  "-libdir" "%{lib}%/compcert"
  "-install-coqdev"
  "-clightgen"
  "-coqdevdir" "%{lib}%/coq/user-contrib/compcert"
  "-ignore-coq-version"]
  [make "-j%{jobs}%" {ocaml:version >= "4.06"}]
]
install: [
  [make "install"]
]
depends: [
  "coq" {>= "8.7.0" & < "8.12"}
  "menhir" {>= "20190626" & < "20200123"}
  "ocaml" {>= "4.05.0"}
]
synopsis: "The CompCert C compiler"
tags: [
  "category:Computer Science/Semantics and Compilation/Compilation"
  "category:Computer Science/Semantics and Compilation/Semantics"
  "keyword:C"
  "keyword:compiler"
  "logpath:compcert"
  "date:2020-03-21"
]
url {
  src: "https://github.com/AbsInt/CompCert/archive/v3.7.tar.gz"
  checksum: "sha256=ceee1b2ed6c2576cb66eb7a0f2669dcf85e65c0fc68385f0781b0ca4edb87eb0"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-compcert.3.7 coq.8.13.1

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.13.1).
The following dependencies couldn't be met:
  - coq-compcert -> coq < 8.12 -> 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-compcert.3.7
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