I've created a fresh installation of CentOS 5.6, and installed PHP 5.3 using the php53-* packages from the CentOS repository. Specifically, I've got:

• php53
• php53-cli
• php53-common
• php53-devel
• php53-mysql
• php53-pdo
• php53-xml

However, I also need to install the mcrypt and apc extensions for my application. CentOS has a pre-built php-mcrypt package, but there is no equivalent php53-mcrypt. The installation of APC requires pecl which I would normally install (for 5.1) with the php-pear package, but likewise there doesn't seem to be a php53-pear package.

How do I build these?

 

You can compile and install manually only the mcrypt extension. This is what I did in my CentOS 5.6 VPS:

First install some required packages:

yum install php53-devel libmcrypt-devel gcc gcc-c++

Then download the php 5.3.6 source code from php.net and unpack it:

wget http://mx2.php.net/get/php-5.3.6.tar.bz2/from/us3.php.net/mirrortar xvjf php-5.3.6.tar.bz2

(Please note that the download link will change with every subsequent PHP release.)

Go to the directory with the mcrypt extension source code and compile:

cd php-5.3.6/ext/mcrypt/phpizeaclocal./configuremake

Then install:

make install

Create the configuration file for PHP /etc/php.d/mcrypt.ini containing:

extension=mcrypt.so

Restart apache:

/etc/init.d/httpd restart

Create a file with phpinfo just to check if the extension was loaded: