Description of problem:
/gallery2/upgrade process fails because deprecation errors prevent cookie from being set after authentication step.

Version-Release number of selected component (if applicable):
2.3-15.fc12

How reproducible:
Always with PHP 5.3 installed

Steps to Reproduce:
Follow the upgrade process suggested by the rpm package install script at <website>/gallery2/upgrade.  Notice the deprecated function warnings in the webpage, which should not be there if /etc/php.ini has error_reporting set to 'E_ALL & ~E_DEPRECATED' Once you complete the authentication step, you are returned to the first step of the process.
  
Additional info:
Gallery 2.3 actually lists PHP 5.3 as incompatible, but php.ini is set up with E_DEPRECATED disabled, the product appears to work well.  However, the upgrade (and probably initial setup) procedures fail because they enable more complete error reporting.

To work around the problem, I patched modules/core/classes/Gallery.class:
@@ -662,7 +662,7 @@
 	}
 	if (!empty($this->_debug)) {
 	    /* PHP 6 includes E_STRICT in E_ALL. Hardcode since PHP 4 does not know that constant */
-	    error_reporting(E_ALL &~ 2048);
+	    error_reporting(E_ALL &~ (2048|E_DEPRECATED));
 	    ini_set('display_errors', 1);
 	    ini_set('log_errors', 1);
 	    ini_set('short_open_tag', false);

This change supresses the deprecation errors, and allows the upgrade to complete as normal.