$ g++ test.cpp  -L/usr/pkg/lib -L. -lbe 
./libbe.so: undefined reference to `port_buffer_size_etc'
./libbe.so: undefined reference to `_kern_dup'
./libbe.so: undefined reference to `deflateInit2_'
./libbe.so: undefined reference to `BPrivate::KMessageField::KMessageField()'
./libbe.so: undefined reference to `_kern_stop_watching'
./libbe.so: undefined reference to `_get_next_image_info'
./libbe.so: undefined reference to `BPrivate::KMessage::~KMessage()'
./libbe.so: undefined reference to `real_time_clock'
./libbe.so: undefined reference to `find_directory'
./libbe.so: undefined reference to `_get_thread_info'
./libbe.so: undefined reference to `BPrivate::KMessage::GetNextField(BPrivate::KMessageField*) const'
./libbe.so: undefined reference to `create_port'
./libbe.so: undefined reference to `_kern_transfer_area'
./libbe.so: undefined reference to `BIconUtils::GetVectorIcon(unsigned char const*, unsigned long, BBitmap*)'
./libbe.so: undefined reference to `_kern_stop_notifying'
./libbe.so: undefined reference to `BPrivate::KMessageField::CountElements() const'
./libbe.so: undefined reference to `_get_image_info'
./libbe.so: undefined reference to `debug_printf'
./libbe.so: undefined reference to `BPrivate::KMessage::What() const'
./libbe.so: undefined reference to `uncompress'
./libbe.so: undefined reference to `_kern_create_symlink'
./libbe.so: undefined reference to `BEntry::GetStat(stat*) const'
./libbe.so: undefined reference to `BPrivate::KMessage::SetTo(void const*, int, unsigned int)'
./libbe.so: undefined reference to `delete_sem'
./libbe.so: undefined reference to `deflate'
./libbe.so: undefined reference to `get_driver_settings'
./libbe.so: undefined reference to `delete_area'
./libbe.so: undefined reference to `_kern_read_stat'
./libbe.so: undefined reference to `release_sem'
./libbe.so: undefined reference to `BIconUtils::ConvertToCMAP8(BBitmap*, BBitmap*)'
./libbe.so: undefined reference to `_get_team_info'
./libbe.so: undefined reference to `compress2'
./libbe.so: undefined reference to `set_area_protection'
./libbe.so: undefined reference to `next_dev'
./libbe.so: undefined reference to `_kern_fsync'
./libbe.so: undefined reference to `release_sem_etc'
./libbe.so: undefined reference to `kill_thread'
./libbe.so: undefined reference to `deflateEnd'
./libbe.so: undefined reference to `_get_area_info'
./libbe.so: undefined reference to `delete_port'
./libbe.so: undefined reference to `BPrivate::KMessage::AddData(char const*, unsigned int, void const*, int, bool)'
./libbe.so: undefined reference to `BPrivate::DragTrackingFilter::DragTrackingFilter(BView*, unsigned int)'
./libbe.so: undefined reference to `_kern_rewind_dir'
./libbe.so: undefined reference to `_kern_open_dir_entry_ref'
./libbe.so: undefined reference to `BPrivate::get_launch_daemon_port()'
./libbe.so: undefined reference to `_kern_write_fs_info'
./libbe.so: undefined reference to `BIconUtils::ConvertFromCMAP8(unsigned char const*, unsigned int, unsigned int, unsigned int, BBitmap*)'
./libbe.so: undefined reference to `_get_port_info'
./libbe.so: undefined reference to `create_area'
./libbe.so: undefined reference to `BPrivate::KMessageField::HasFixedElementSize() const'
./libbe.so: undefined reference to `resume_thread'
./libbe.so: undefined reference to `parse_driver_settings_string'
./libbe.so: undefined reference to `inflate'
./libbe.so: undefined reference to `BPrivate::KMessage::SendTo(int, int, int, int, long, int)'
./libbe.so: undefined reference to `__libc_argc'
./libbe.so: undefined reference to `rename_thread'
./libbe.so: undefined reference to `get_image_symbol'
./libbe.so: undefined reference to `exit_thread'
./libbe.so: undefined reference to `inflateInit2_'
./libbe.so: undefined reference to `_kern_open_query'
./libbe.so: undefined reference to `BPrivate::KMessage::ReplyPort() const'
./libbe.so: undefined reference to `write_port_etc'
./libbe.so: undefined reference to `acquire_sem_etc'
./libbe.so: undefined reference to `BNode::GetStat(stat*) const'
./libbe.so: undefined reference to `wait_for_thread'
./libbe.so: undefined reference to `_kern_remove_attr'
./libbe.so: undefined reference to `_kern_seek'
./libbe.so: undefined reference to `fs_stat_attr'
./libbe.so: undefined reference to `dev_for_path'
./libbe.so: undefined reference to `load_image'
./libbe.so: undefined reference to `send_data'
./libbe.so: undefined reference to `_kern_write_stat'
./libbe.so: undefined reference to `_kern_open_entry_ref'
./libbe.so: undefined reference to `convert_to_stat_beos'
./libbe.so: undefined reference to `inflateEnd'
./libbe.so: undefined reference to `fs_write_attr'
./libbe.so: undefined reference to `debugger'
./libbe.so: undefined reference to `load_driver_settings'
./libbe.so: undefined reference to `find_path_for_path_etc'
./libbe.so: undefined reference to `_kern_write'
./libbe.so: undefined reference to `_kern_unlock_node'
./libbe.so: undefined reference to `set_port_owner'
./libbe.so: undefined reference to `BPrivate::KMessage::TargetToken() const'
./libbe.so: undefined reference to `_kern_rename_attr'
./libbe.so: undefined reference to `snooze'
./libbe.so: undefined reference to `close_port'
./libbe.so: undefined reference to `_kern_create_dir'
./libbe.so: undefined reference to `port_count'
./libbe.so: undefined reference to `_kern_remove_dir'
./libbe.so: undefined reference to `clone_area'
./libbe.so: undefined reference to `BDirectory::GetStatFor(char const*, stat*) const'
./libbe.so: undefined reference to `acquire_sem'
./libbe.so: undefined reference to `read_port'
./libbe.so: undefined reference to `_kern_open_dir'
./libbe.so: undefined reference to `_kern_unlink'
./libbe.so: undefined reference to `__init_once'
./libbe.so: undefined reference to `BIconUtils::GetIcon(BNode*, char const*, char const*, char const*, icon_size, BBitmap*)'
./libbe.so: undefined reference to `_kern_close'
./libbe.so: undefined reference to `_kern_open'
./libbe.so: undefined reference to `BPrivate::KMessage::KMessage()'
./libbe.so: undefined reference to `load_add_on'
./libbe.so: undefined reference to `find_thread'
./libbe.so: undefined reference to `_kern_reserve_address_range'
./libbe.so: undefined reference to `system_time'
./libbe.so: undefined reference to `_kern_read_dir'
./libbe.so: undefined reference to `_kern_read'
./libbe.so: undefined reference to `spawn_thread'
./libbe.so: undefined reference to `__libc_argv'
./libbe.so: undefined reference to `__gUmask'
./libbe.so: undefined reference to `get_secondary_architectures'
./libbe.so: undefined reference to `find_path_etc'
./libbe.so: undefined reference to `write_port'
./libbe.so: undefined reference to `unload_add_on'
./libbe.so: undefined reference to `_kern_get_safemode_option'
./libbe.so: undefined reference to `get_architectures'
./libbe.so: undefined reference to `BPrivate::KMessage::ReplyToken() const'
./libbe.so: undefined reference to `find_paths_etc'
./libbe.so: undefined reference to `BPrivate::KMessageField::ElementAt(int, int*) const'
./libbe.so: undefined reference to `fs_create_index'
./libbe.so: undefined reference to `parsedate'
./libbe.so: undefined reference to `BPrivate::KMessageField::TypeCode() const'
./libbe.so: undefined reference to `fs_stat_index'
./libbe.so: undefined reference to `read_port_etc'
./libbe.so: undefined reference to `create_sem'
./libbe.so: undefined reference to `_kern_start_watching'
./libbe.so: undefined reference to `receive_data'
./libbe.so: undefined reference to `unload_driver_settings'
./libbe.so: undefined reference to `snooze_until'
./libbe.so: undefined reference to `BPrivate::KMessageField::Name() const'
./libbe.so: undefined reference to `_kern_lock_node'
./libbe.so: undefined reference to `BPrivate::KMessage::AddArray(char const*, unsigned int, void const*, int, int)'
./libbe.so: undefined reference to `_kern_read_link'
./libbe.so: undefined reference to `BPrivate::KMessage::kMessageHeaderMagic'
./libbe.so: undefined reference to `BIconUtils::ConvertFromCMAP8(BBitmap*, BBitmap*)'
./libbe.so: undefined reference to `_kern_open_attr_dir'
./libbe.so: undefined reference to `_kern_rename'
./libbe.so: undefined reference to `_kern_entry_ref_to_path'
./libbe.so: undefined reference to `_kern_open_parent_dir'
./libbe.so: undefined reference to `fs_stat_dev'
./libbe.so: undefined reference to `fs_read_attr'