23 unix(
const std::optional<std::string> &
appname = std::nullopt,
24 const std::variant<std::string, std::nullopt_t, bool> &
appauthor =
26 const std::optional<std::string> &
version = std::nullopt,
35 auto site_data_dirs()
const -> std::vector<std::string>;
51 auto site_config_dirs()
const -> std::vector<std::string>;
97 first_item_as_path_if_multipath(
const std::string &directory)
const;