(2021-04-08 21:07:48 UTC)
# 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 3 Virtual package relying on a GMP lib system installation coq 8.13.0 Formal proof management system num 1.4 The legacy Num library for arbitrary-precision integer and rational arithmetic ocaml 4.10.1 The OCaml compiler (virtual package) ocaml-base-compiler 4.10.1 Official release 4.10.1 ocaml-config 1 OCaml Switch Configuration ocamlfind 1.9.1 A library manager for OCaml zarith 1.12 Implements arithmetic and logical operations over arbitrary-precision integers # opam file: opam-version: "2.0" maintainer: "palmskog@gmail.com" homepage: "https://github.com/coq-community/huffman" dev-repo: "git+https://github.com/coq-community/huffman.git" bug-reports: "https://github.com/coq-community/huffman/issues" doc: "https://coq-community.github.io/huffman/" license: "LGPL-2.1-or-later" synopsis: "Coq proof of the correctness of the Huffman coding algorithm" description: """ This projects contains a Coq proof of the correctness of the Huffman coding algorithm, as described in David A. Huffman's paper A Method for the Construction of Minimum-Redundancy Codes, Proc. IRE, pp. 1098-1101, September 1952.""" build: [make "-j%{jobs}%"] install: [make "install"] depends: [ "coq" {>= "8.7" & < "8.13~"} ] tags: [ "category:Computer Science/Decision Procedures and Certified Algorithms/Correctness proofs of algorithms" "category:Miscellaneous/Extracted Programs/Combinatorics" "keyword:data compression" "keyword:code" "keyword:huffman tree" "logpath:Huffman" "date:2020-07-26" ] authors: [ "Laurent Théry" ] url { src: "https://github.com/coq-community/huffman/archive/v8.12.0.tar.gz" checksum: "sha512=644b12056d2d9e68b4a2b0af7106885467aec28d44da5933a1d3b506925a5876611242570c0a70e019b4ed59ba64c1d6f52d7218b43dd82ae3a6f631a6a86d66" }
true
Dry install with the current Coq version:
opam install -y --show-action coq-huffman.8.12.0 coq.8.13.0
[NOTE] Package coq is already installed (current version is 8.13.0). The following dependencies couldn't be met: - coq-huffman -> coq < 8.13~ -> ocaml < 4.10 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:
opam remove -y coq; opam install -y --show-action --unlock-base coq-huffman.8.12.0
true
true
No files were installed.
true