Bart is totally right. It's a nogo for compiling mysql 4.1 with 5.0 libs
;)
** Changed in: mysql-dfsg-4.1 (Ubuntu)
Priority: None => Wontfix
Status: Confirmed => Rejected
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[LIBMYSQLCLIENT] mysql-dfsg-4.1 links against old libmysqlclient
https://launchpad.net/bugs/45069