Version:           4.4 (using KDE 4.4.3) 
OS:                Linux

I was using 32 bit Mandriva. Then I migrated my HOME dir to a new x86_64 machine.
Kmail could not send mails anymore. Kadressbook stopped working.

Digging the file, I have found that the file .local/share/akonadi/mysql.conf hardcoded a path :

plugin_dir=/usr/lib/mysql/plugin

Changing the path to the 64bit Mandriva allowed akonadi server to start again:

plugin_dir=/usr/lib64/mysql/plugin

Maybe this should be checked at startup time, allowing the same user to use different installations?

Reproducible: Always

Steps to Reproduce:
1 Change the path where mysql plugins are installed.
2 Akonadi does not start anymmore

Actual Results:  
crash at startup :
110405 23:07:32 [ERROR] Can't open shared library '/usr/lib/mysql/plugin/ha_innodb.so' (errno: 22 cannot open shared object file: No such file or directory)
110405 23:07:32 [ERROR] /usr/sbin/mysqld: unknown variable 'innodb_file_per_table=1'
110405 23:07:32 [ERROR] Aborting

110405 23:07:32 [Note] /usr/sbin/mysqld: Shutdown complete


Expected Results:  
start ;-)

Even if some distributions use /usr/lib for x86_64, akonadi should not write a system wide path in a user conf file.