{ lib, mkCoqDerivation, coq, aac-tactics, mathcomp, version ? null }:
with lib;

mkCoqDerivation {
  pname = "relation-algebra";
  owner = "damien-pous";

  releaseRev = v:
    if versions.isGe "1.7.6" v
    then "v.${v}"
    else "v${v}";

  release."1.7.7".sha256 = "sha256:1dff3id6nypl2alhk9rcifj3dab0j78dym05blc525lawsmc26l2";
  release."1.7.6".sha256 = "sha256:02gsj06zcy9zgd0h1ibqspwfiwm36pkkgg9cz37k4bxzcapxcr6w";
  release."1.7.5".sha256 = "sha256-XdO8agoJmNXPv8Ho+KTlLCB4oRlQsb0w06aM9M16ZBU=";
  release."1.7.4".sha256 = "sha256-o+v2CIAa2+9tJ/V8DneDTf4k31KMHycgMBLaQ+A4ufM=";
  release."1.7.3".sha256 = "sha256-4feSNfi7h4Yhwn5L+9KP9K1S7HCPvsvaVWwoQSTFvos=";
  release."1.7.2".sha256 = "sha256-f4oNjXspNMEz3AvhIeYO3avbUa1AThoC9DbcHMb5A2o=";
  release."1.7.1".sha256 = "sha256-WWVMcR6z8rT4wzZPb8SlaVWGe7NC8gScPqawd7bltQA=";

  inherit version;
  defaultVersion = with versions; switch coq.coq-version [
    { case = isEq "8.15"; out = "1.7.7"; }
    { case = isEq "8.14"; out = "1.7.6"; }
    { case = isEq "8.13"; out = "1.7.5"; }
    { case = isEq "8.12"; out = "1.7.4"; }
    { case = isEq "8.11"; out = "1.7.3"; }
    { case = isEq "8.10"; out = "1.7.2"; }
    { case = isEq "8.9";  out = "1.7.1"; }
  ] null;

  mlPlugin = true;

  propagatedBuildInputs = [ aac-tactics mathcomp.ssreflect ];

  meta = {
    description = "Relation algebra library for Coq";
    maintainers = with maintainers; [ siraben ];
    license = licenses.gpl3Plus;
    platforms = platforms.unix;
  };
}