[horde] Use of undefined constant DB_PORTABILITY_LOWERCASE after update to 3.2.1

[Stefan Stolz]

Hello,

i have tried to update horde to 3.2.1, but i am getting following  
errors and can't find a solution. Only to update pear db, but pear db  
is up to date.

<---
Notice: Use of undefined constant DB_PORTABILITY_LOWERCASE - assumed  
'DB_PORTABILITY_LOWERCASE' in /horde-3.2.1/lib/Horde/DataTree/sql.php  
on line 1885

  Notice: Use of undefined constant DB_PORTABILITY_ERRORS - assumed  
'DB_PORTABILITY_ERRORS' in
/horde-3.2.1/lib/Horde/DataTree/sql.php on line 1885

  Notice: Only variable references should be returned by reference in  
/usr/local/lib/php/DB/common.php on line 298

  Notice: Use of undefined constant DB_PORTABILITY_LOWERCASE - assumed  
'DB_PORTABILITY_LOWERCASE' in /horde-3.2.1/lib/Horde/Alarm/sql.php on  
line 392

  Notice: Use of undefined constant DB_PORTABILITY_ERRORS - assumed  
'DB_PORTABILITY_ERRORS' in /horde-3.2.1/lib/Horde/Alarm/sql.php on  
line 392

  Notice: Only variable references should be returned by reference in  
/usr/local/lib/php/DB/common.php on line 298

  Warning: Cannot modify header information - headers already sent by  
(output started at /horde-3.2.1/lib/Horde/DataTree/sql.php:1885) in  
/horde-3.2.1/login.php on line 216
--->

Any idea what's wrong with my installation?

Thanks
Stolzi