pub unsafe extern "C" fn g_file_make_symbolic_link_async(
    file: *mut GFile,
    symlink_value: *const c_char,
    io_priority: c_int,
    cancellable: *mut GCancellable,
    callback: GAsyncReadyCallback,
    user_data: gpointer
)
Available on crate feature v2_74 only.