Add php-memcached extension

I have added 2 packages : libmemcached and phpmemcached. 
It work well. But have 2 problem:
- I have to add extionsion=memcached.so to file php.ini by hand.
- after compile php-memcached. autoparts raise error like this: 
parts: ERROR: No such file or directory - /home/action/.parts/packages/phpmemcached/2.1.0