Установка PHP 5.3 на Debian 5 Lenny рядом с системным PHP 5.2.6

apt-get install -y mysql-client libmysqlclient15-dev

Ставим зависимости:

apt-get install -y libtidy-dev curl libcurl4-openssl-dev libcurl3 libcurl3-gnutls zlib1g zlib1g-dev libxslt1-dev libzip-dev libzip1 libxml2 libsnmp-base libsnmp15 libxml2-dev libsnmp-dev libjpeg62 libjpeg62-dev libpng12-0 libpng12-dev zlib1g zlib1g-dev libfreetype6 libfreetype6-dev libbz2-dev libxpm-dev libmcrypt-dev libmcrypt4 sqlite3 bzip2 build-essential libreadline5-dev libedit-dev libc-client2007b libc-client-dev krb5-kdc openssl

Компилируем:

cd /usr/src
wget http://de.php.net/distributions/php-5.3.3.tar.gz
tar -xf php-5.3.3.tar.gz
cd php-5.3.3
./configure -prefix=/opt/php53 -with-mysql=/usr -with-mysqli=/usr/bin/mysql_config -with-tidy=/usr -with-curl=/usr/bin -with-curlwrappers -with-openssl-dir=/usr -with-zlib-dir=/usr -enable-mbstring -with-xpm-dir=/usr -with-pdo-mysql=/usr -with-xsl=/usr -with-ldap -with-xmlrpc -with-iconv-dir=/usr -with-snmp=/usr -enable-exif -enable-calendar -with-bz2=/usr -with-mcrypt=/usr -with-gd -with-jpeg-dir=/usr -with-png-dir=/usr -with-zlib-dir=/usr -with-freetype-dir=/usr -enable-mbstring -enable-zip -with-pear -with-imap -with-kerberos -with-imap-ssl -with-imagick -with-readline -with-libedit
make install

Проверяем работспособность PHP cli:

/opt/php53/bin/php -v
PHP 5.3.3 (cli) (built: Nov 19 2010 17:49:19)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies

Проверяем работу PHP cgi/fcgi:

/opt/php53/bin/php-cgi -v
PHP 5.3.3 (cgi-fcgi) (built: Nov 19 2010 17:49:13)
Copyright (c) 1997-2010 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies

Источник: http://www.howtoforge.com/install-php-5.3.0-lighttpd-on-debian-lenny-with-imap-mysql-sqlite3-and-imagemagick-support