[drupal-support] Fatal error: ?

[Dennis G. Wicks]

Greetings;

I am installing drupal-4.5.2 and have hit a snag.

I have mysql  Ver 11.16 Distrib 3.23.49
and  Apache/1.3.26 (Unix)

When I try to open the first page I get an error

Fatal error: Call to undefined function: mysql_connect() in
/var/httpd/drupal/includes/database.mysql.inc on line 31

I have a feeling that I have missed something in the install
procedure but I have been over everything a couple of times
and can't spot anything.

TIA!
Dennis