MySQL 4.1.2

Hi,

I'm just migrating my development server from MySQL 4.1.0 to 4.1.2 .

For the while, i've problems with characters sets. I've seen in the doc that
many system variables have changed about characters sets since 4.1.0 
(mainly 5.2.3 chapter of the mysql reference online).

But i don't succeed in changing these variables. If i add lines like 
"character_set_server=utf8" in my.cnf, i got the message that these 
variables doesn't exist...
/usr/sbin/mysqld: ERROR: unknown variable 'character_set_server=utf8'
/usr/sbin/mysqld: ERROR: unknown variable 'character_set_results=utf8'
I'm sure i'm under 4.1.2 (select version();  ->  4.1.2-alpha-standard-log).

There is also in my my.cnf a reference for a variable that is no more in
the doc (chapter 5.2.3) : default-character-set=utf8 but that is still accepted...

Is it a bug or does i'm missing something ?

----

I would also want to mention that i always get the following line in the error file when i start the server: 
040601 17:26:03  Warning: Asked for 196608 thread stack, but got 126976
I don't know if it can help or where i can find supplementary information, but it seems
to be another bug.

Hope it can help.
(i've also good news - bugs that i submitted some months ago about utf8 now seems to be ok)

Bertrand Lanneau.