apc_fetch under PHP 8

[JastrzebskiKrzysztof]

php-apcu-bc is dropped in PHP 8 Also https://pecl.php.net/package/apcu_bc have no compatible release. Setting: $APC_ON = false; in config.php or trying to workaround in functions.php: if ($haveAPC && ini_get('apc.enabled')) { $APC_ON = false; } else { $APC_ON = false; } still issues: "Call to undefined function apc_fetch()". It makes waf-fle unusable under many distributions (debian bookworm for example).