diff -Naur bacula-5.2.2.old/src/cats/mysql.c bacula-5.2.2/src/cats/mysql.c
--- bacula-5.2.2.old/src/cats/mysql.c	2011-11-26 15:08:12.000000000 +0100
+++ bacula-5.2.2/src/cats/mysql.c	2011-12-10 22:32:47.763334236 +0100
@@ -296,7 +296,7 @@
 void B_DB_MYSQL::db_thread_cleanup(void)
 { 
 #ifndef HAVE_WIN32
-   my_thread_end();
+   mysql_thread_end();
 #endif
 }