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compcert 3.9 Not compatible 👼

Context

# Packages matching: installed
# Name              # Installed # Synopsis
base-bigarray       base
base-num            base        Num library distributed with the OCaml compiler
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                 8.5.2       Formal proof management system
num                 0           The Num library for arbitrary-precision integer and rational arithmetic
ocaml               4.03.0      The OCaml compiler (virtual package)
ocaml-base-compiler 4.03.0      Official 4.03.0 release
ocaml-config        1           OCaml Switch Configuration
# 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"
  "amd64-linux" {os = "linux"}
  "amd64-macosx" {os = "macos"}
  "amd64-cygwin" {os = "cygwin"}
  # This is for building a MinGW CompCert with cygwin host and cygwin target
  "amd64-cygwin" {os = "win32" & os-distribution = "cygwinports"}
  # This is for building a 64 bit CompCert on 32 bit MinGW with cygwin build host
  "-toolprefix"        {os = "win32" & os-distribution = "cygwinports" & arch = "i686"}
  "x86_64-pc-cygwin-"  {os = "win32" & os-distribution = "cygwinports" & arch = "i686"}
  "-prefix" "%{prefix}%"
  "-install-coqdev"
  "-clightgen"
  "-use-external-Flocq"
  "-use-external-MenhirLib"
  "-coqdevdir" "%{lib}%/coq/user-contrib/compcert"
  "-ignore-coq-version"]
  [make "-j%{jobs}%" {ocaml:version >= "4.06"}]
]
install: [
  [make "install"]
]
depends: [
  "coq" {>= "8.9.0" & < "8.15~"}
  "menhir" {>= "20190626" }
  "ocaml" {>= "4.05.0"}
  "coq-flocq" {>= "3.1.0" & < "4~"}
  "coq-menhirlib" {>= "20190626"}
]
synopsis: "The CompCert C compiler (64 bit)"
tags: [
  "category:Computer Science/Semantics and Compilation/Compilation"
  "category:Computer Science/Semantics and Compilation/Semantics"
  "keyword:C"
  "keyword:compiler"
  "logpath:compcert"
  "date:2021-05-10"
]
url {
  src: "https://github.com/AbsInt/CompCert/archive/v3.9.tar.gz"
  checksum: "sha512=485cbed95284c93124ecdea536e6fb9ea6a05a72477584204c8c3930759d27b0949041ae567044eda9b716a33bba4315665a8d3860deebf851e10c9a4ef88684"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-compcert.3.9 coq.8.5.2

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.5.2).
The following dependencies couldn't be met:
  - coq-compcert -> ocaml >= 4.05.0
      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-compcert.3.9
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