:/etc/apache2/sites-enabled# pecl install apc
WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
downloading APC-3.1.10.tgz ...
Starting to download APC-3.1.10.tgz (156,208 bytes)
.................................done: 156,208 bytes
:/etc/apache2/sites-enabled# find / -name 'apc.so'