{
  lib,
  stdenv,
  fetchFromGitHub,
  pkgsBuildBuild,
  pkgsBuildHost,
  cmake,
  glib,
  icu,
  libxml2,
  ninja,
  perl,
  pkg-config,
  libical,
  python3,
  tzdata,
  fixDarwinDylibNames,
  withIntrospection ? stdenv.hostPlatform.emulatorAvailable pkgsBuildHost,
  gobject-introspection,
  vala,
}:

stdenv.mkDerivation rec {
  pname = "libical";
  version = "3.0.18";

  outputs = [
    "out"
    "dev"
  ]; # "devdoc" ];

  src = fetchFromGitHub {
    owner = "libical";
    repo = "libical";
    rev = "v${version}";
    sha256 = "sha256-32FNnCybXO67Vtg1LM6miJUaK+r0mlfjxgLQg1LD8Es=";
  };

  strictDeps = true;

  depsBuildBuild = lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
    # provides ical-glib-src-generator that runs during build
    libical
  ];

  nativeBuildInputs =
    [
      cmake
      ninja
      perl
      pkg-config
    ]
    ++ lib.optionals withIntrospection [
      gobject-introspection
      vala
      # Docs building fails:
      # https://github.com/NixOS/nixpkgs/pull/67204
      # previously with https://github.com/NixOS/nixpkgs/pull/61657#issuecomment-495579489
      # gtk-doc docbook_xsl docbook_xml_dtd_43 # for docs
    ]
    ++ lib.optionals stdenv.isDarwin [ fixDarwinDylibNames ];
  nativeInstallCheckInputs = [
    # running libical-glib tests
    (python3.pythonOnBuildForHost.withPackages (pkgs: with pkgs; [ pygobject3 ]))
  ];

  buildInputs = [
    glib
    libxml2
    icu
  ];

  cmakeFlags =
    [
      "-DENABLE_GTK_DOC=False"
      "-DGOBJECT_INTROSPECTION=${if withIntrospection then "True" else "False"}"
      "-DICAL_GLIB_VAPI=${if withIntrospection then "True" else "False"}"
    ]
    ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) [
      "-DIMPORT_ICAL_GLIB_SRC_GENERATOR=${lib.getDev pkgsBuildBuild.libical}/lib/cmake/LibIcal/IcalGlibSrcGenerator.cmake"
    ];

  patches = [
    # Will appear in 3.1.0
    # https://github.com/libical/libical/issues/350
    ./respect-env-tzdir.patch
  ];

  # Using install check so we do not have to manually set
  # LD_LIBRARY_PATH and GI_TYPELIB_PATH variables
  # Musl does not support TZDIR.
  doInstallCheck = !stdenv.hostPlatform.isMusl;
  enableParallelChecking = false;
  preInstallCheck =
    if stdenv.isDarwin then
      ''
        for testexe in $(find ./src/test -maxdepth 1 -type f -executable); do
          for lib in $(cd lib && ls *.3.dylib); do
            install_name_tool -change $lib $out/lib/$lib $testexe
          done
        done
      ''
    else
      null;
  installCheckPhase = ''
    runHook preInstallCheck

    export TZDIR=${tzdata}/share/zoneinfo
    ctest --output-on-failure

    runHook postInstallCheck
  '';

  meta = with lib; {
    homepage = "https://github.com/libical/libical";
    description = "An Open Source implementation of the iCalendar protocols";
    changelog = "https://github.com/libical/libical/raw/v${version}/ReleaseNotes.txt";
    license = licenses.mpl20;
    platforms = platforms.unix;
  };
}