При стандартной компиляции может вылезти ошибка:

# make
/bin/sh /usr/src/memcached-2.2.0/libtool --mode=compile cc -I/usr/lib64/php5.6/include/php    -I. -I/usr/src/memcached-2.2.0 -DPHP_ATOM_INC -I/usr/src/memcached-2.2.0/include -I/usr/src/memcached-2.2.0/main -I/usr/src/memcached-2.2.0 -I/usr/lib64/php5.6/include/php -I/usr/lib64/php5.6/include/php/main -I/usr/lib64/php5.6/include/php/TSRM -I/usr/lib64/php5.6/include/php/Zend -I/usr/lib64/php5.6/include/php/ext -I/usr/lib64/php5.6/include/php/ext/date/lib  -DHAVE_CONFIG_H  -g -O2   -c /usr/src/memcached-2.2.0/php_memcached.c -o php_memcached.lo
/usr/src/memcached-2.2.0/libtool: line 482: CDPATH: command not found
libtool: Version mismatch error.  This is libtool 2.4.2, but the
libtool: definition of this LT_INIT comes from an older release.
libtool: You should recreate aclocal.m4 with macros from libtool 2.4.2
libtool: and run autoconf again.
make: *** [php_memcached.lo] Error 63

Это лечится запуском

aclocal && libtoolize --force && autoreconf

между phpize и ./configure

Скрипт установки:

--------------------------------------------------------------------------------------------------

#!/bin/bash                                                                                                                                                 
                                                                                                                                                            
cd /usr/src                                                                                                                                                 
wget http://pecl.php.net/get/memcached-2.2.0.tgz                                                                                                            
tar xvf memcached-2.2.0.tgz                                                                                                                                 
cd memcached-2.2.0                                                                                                                                          
phpize                                                                                                                                                      
aclocal && libtoolize --force && autoreconf                                                                                                                 
./configure                                                                                                                                                 
make                                                                                                                                                        
make install                                                                                                                                                
if [ ! -f /etc/php/fpm-php5.6/ext/memcached.ini ];                                                                                                          
    then                                                                                                                                                    
           echo "extension=memcached.so" > /etc/php/fpm-php5.6/ext/memcached.ini                                                                               
fi                                                                                                                                                          
cd /etc/php/fpm-php5.6/ext-active                                                                                                                           
ln -s ../ext/memcached.ini memcached.ini                                                                                                                    
                                                                                                                                                            
if [ ! -f /etc/php/cli-php5.6/ext/memcached.ini ];                                                                                                          
    then                                                                                                                                                    
           echo "extension=memcached.so" > /etc/php/fpm-php5.6/ext/memcached.ini                                                                               
fi                                                                                                                                                          
cd /etc/php/cli-php5.6/ext-active                                                                                                                           
ln -s ../ext/memcached.ini memcached.ini