function bp_do_404( $redirect = 'remove_canonical_direct' ) {
	global $wp_query;

	/**
	 * Fires inside the triggering of a 404.
	 *
	 * @since 1.5.0
	 *
	 * @param string $redirect Redirect type used to determine if redirect_canonical
	 *                         function should be be removed.
	 */
	do_action( 'bp_do_404', $redirect );

	$wp_query->set_404();
	status_header( 404 );
	nocache_headers();

	if ( 'remove_canonical_direct' === $redirect ) {
		remove_action( 'template_redirect', 'redirect_canonical' );
	}
}