Testing against the latest development version - using Git.
I'll be the first to admit that this bug is en edge case. However, it just happened to a friend how tried to install the latest Debian PHPMyAdmin package (3.3.5-1), It only happens if you access http://example.org/phpmyadmin/setup/ AND ForceSSL is 1/true. (The Debian maintainer has set ForceSSL to true in /var/lib/phpmyadmin/config.inc.php.) Logging in at http://example.org/phpmyadmin/ redirects correctly to https://example.org/phpmyadmin/
The error is "PHP Fatal error: Call to undefined function PMA_sendHeaderLocation() in /home/hans/www/testing/phpmyadmin/libraries/common.inc.php on line 324". The reason is that setup/lib/common.inc.php sets PMA_MINIMUM_COMMON. I have attached one possible solution/patch.
Patch for setup/lib/common.inc.php
This bug was fixed in repository and will be part of a future release; thanks for reporting.