linux eaccelerator
wget https://github.com/eaccelerator/eaccelerator/tarball/master
tar -jxvf eaccelerator-0.9.6.1.tar.
cd eaccelerator-0.9.6.1
phpize
./configure --enable-eaccelerator=shared --with-php-config=/usr/local/php-5.3.10/bin/php-config
make && make install