Update: with the update of PHP to v5.3.3, the amzn repository now includes php-mcrypt, rendering the steps below unnecessary.
At the moment, the amzn repository has v5.3.2 of PHP (while the latest version is v5.3.3) – it also does not offer php-mcrypt. While in previous servers I have included a wider selection of repositories, I wanted to limit my repositories somewhat on this setup. The only other (disabled) repository I use is RPMForge (which also does not offer php-mcrypt).
To make the mcrypt module (requires gcc, automake, php-devel, libmcrypt (from RPMForge), and libmcrypt-devel (from RPMForge)):
sudo -i wget http://ca.php.net/get/php-5.3.2.tar.gz/from/us.php.net/mirror tar -xzvf php-5.3.2.tar.gz cd php-5.3.2/ext/mcrypt phpize aclocal ./configure make make install echo "extension=mcrypt.so" | tee /etc/php.d/mcrypt.ini service httpd restart exit
worked perfectly for me. Thanks for the detailed info.