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hammer 1.0.3 Not compatible 👼

Context

# Packages matching: installed
# Name                # Installed # Synopsis
base-bigarray         base
base-domains          base
base-nnp              base        Naked pointers prohibited in the OCaml heap
base-threads          base
base-unix             base
conf-gmp              4           Virtual package relying on a GMP lib system installation
coq                   8.17.1      The Coq Proof Assistant
coq-core              8.17.1      The Coq Proof Assistant -- Core Binaries and Tools
coq-stdlib            8.17.1      The Coq Proof Assistant -- Standard Library
coqide-server         8.17.1      The Coq Proof Assistant, XML protocol server
dune                  3.12.1      Fast, portable, and opinionated build system
ocaml                 5.1.1       The OCaml compiler (virtual package)
ocaml-base-compiler   5.1.1       Official release 5.1.1
ocaml-config          3           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: "Julien Narboux <julien@narboux.fr>"
homepage: "http://cl-informatik.uibk.ac.at/cek/coqhammer/"
bug-reports: "mailto://lukaszcz@mimuw.edu.pl"
authors: ["Ł. Czajka"
 	  "Cezary Kaliszyk"]
license: "LGPL 2.1"
build: [
  ["sed" "-i" "s|usr\\/local|%{prefix}%|g" "_CoqProject"]
  ["coq_makefile" "-f" "_CoqProject" "-o" "Makefile"]
  [make]
]
install: [
  [make "install"]
]
remove: [
	["rm" "-R" "%{lib}%/coq/user-contrib/Hammer"]
	["rm" "%{prefix}%/bin/predict"]
]
depends: [
  "ocaml"
  "conf-g++" {build}
  "coq" {(>= "8.6" & < "8.7~")}
]
tags: [ "keyword:automation"
	"category:Miscellaneous/Coq Extensions"
	"date:2017-09-30"  ]
synopsis: "Automation for Dependent Type Theory"
flags: light-uninstall
url {
  src:
    "http://cl-informatik.uibk.ac.at/cek/coqhammer/coqhammer-1.0.3-coq8.6.tar.gz"
  checksum: "md5=4d0fb044c9ddecac60b6aea7310a2379"
}

Lint

Command: true
Return code: 0

Dry install 🏜️

Dry install with the current Coq version:

Command

opam install -y --show-action coq-hammer.1.0.3 coq.8.17.1

Return code

5120

Output

[NOTE] Package coq is already installed (current version is 8.17.1).
[ERROR] Package conflict!
  * No agreement on the version of ocaml:
    - (invariant) -> ocaml-base-compiler >= 5.1.1 -> ocaml = 5.1.1
    - coq-hammer < 1.0.8+8.7 -> coq < 8.7~ -> ocaml < 4.02.0
    You can temporarily relax the switch invariant with `--update-invariant'
  * No agreement on the version of ocaml-base-compiler:
    - (invariant) -> ocaml-base-compiler >= 5.1.1
    - coq-hammer < 1.0.8+8.7 -> coq < 8.7~ -> ocaml < 4.02.0 -> ocaml-base-compiler = 3.08.1
  * Missing dependency:
    - coq-hammer < 1.0.8+8.7 -> coq < 8.7~ -> ocaml < 4.02.0 -> ocaml-variants >= 3.09.2 -> ocaml-beta
    unmet availability conditions: 'enable-ocaml-beta-repository'
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-hammer.1.0.3
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