PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/20090626/memcache.so'

140# php -v
PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/20090626/memcache.so' - /usr/local/lib/php/20090626/memcache.so: Undefined symbol "php_session_create_id" in Unknown on line 0
PHP 5.3.6 with Suhosin-Patch (cli) (built: Aug 2 2011 10:06:18)
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