def native_pkg_config
return @native_pkg_config if @native_pkg_config
pkg_config = with_config("pkg-config", ENV["PKG_CONFIG"] || "pkg-config")
pkg_config = Pathname.new(pkg_config)
unless pkg_config.absolute?
found_pkg_config = search_pkg_config_from_path(pkg_config)
pkg_config = found_pkg_config if found_pkg_config
end
unless pkg_config.absolute?
found_pkg_config = search_pkg_config_by_dln_find_exe(pkg_config)
pkg_config = found_pkg_config if found_pkg_config
end
@native_pkg_config = pkg_config
end