[Mediawiki-l] php ./update.php -> PHP Fatal error: Cannot redeclare wfprofilein()

[HumanCell .org]

The maintenance/update.php script fails for me.

-sh-3.00$ php ./update.php
PHP Fatal error:  Cannot redeclare wfprofilein() (previously declared
in /home/humancell/mediawiki-1.6.2/includes/ProfilerStub.php:6) in
/home/humancell/public_html/includes/Setup.php on line 30
Content-type: text/html
X-Powered-By: PHP/4.3.9

I have the same problem whether using mediawiki-1.6.2 or 1.6.5
My php version is not the latest (4.3.9-3.12), but is still supported
according to INSTALL:
"Web server with PHP 4.3.2 or higher; 4.4.x or 5.x is recommended."

Any suggestions?