Something

dev:~# cat /etc/apache2/mods-available/fastcgi.conf
<IfModule mod_fastcgi.c>
  AddHandler fastcgi-script .fcgi
  #FastCgiWrapper /usr/lib/apache2/suexec2
  FastCgiIpcDir /var/lib/apache2/fastcgi

  # Some generally useful settings for FastCGI
  FastCgiConfig -flush
  FastCgiConfig -idle-timeout 300
  FastCgiConfig -pass-header Authorization
  FastCgiConfig -pass-header HTTP_AUTHORIZATION

  # Run PHP via FastCgi
  AddHandler php-script php php3 php4
  Action php-script /cgi-bin/php4-wrapper
  # Register /cgi-bin/php as a FastCgi script
  <LocationMatch ^/cgi-bin/php$>
    Options +ExecCgi
    SetHandler fastcgi-script
  </LocationMatch>
</IfModule>
dev:~# cat /usr/lib/cgi-bin/php4
php4          php4-wrapper  
dev:~# cat /usr/lib/cgi-bin/php4-wrapper 
#!/bin/sh

PHP_FCGI_CHILDREN=50
PHP_FCGI_MAX_REQUESTS=5000
export PHP_FCGI_MAX_REQUESTS
export PHP_FCGI_CHILDREN

exec /usr/bin/php4-cg