Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » http://pecl.php.net/package/memcached
If libmemcached is installed in a non-standard location, use --with-libmemcached-dir=DIR switch, where DIR is the libmemcached install prefix. This directory has to contain the include/libmemcached/memcached.h file.
Zlib is required for compression support. To specify non-standard installation of Zlib, use --with-zlib-dir=DIR switch, where DIR is the Zlib install prefix.
Session handler support is enabled by default. To disable it, use --disable-memcached-session switch.