static-php-cli/src/SPC/builder/extension/ffi.php

<?php

declare(strict_types=1);

namespace SPC\builder\extension;

use SPC\builder\Extension;
use SPC\util\CustomExt;

#[CustomExt('ffi')]
class ffi extends Extension
{
    public function getUnixConfigureArg(): string
    {
        return '--with-ffi --enable-zend-signals';
    }
}