configure: error: --with-authmysql specified

[Asoekei]

I have already installed qmail+checkpassword+mysql.
But when i tried ti installed sqwebmail,
./configure --prefix=/usr/local/webmail
--enable-cgibindir=/homepage/cgi-bin/ -
-with-authpwd --with-authmysql --with-cachedir=/var/cache/sqwebmail
--enable-imagedir=/homepage/imange --with
-defaultlang=en

i get an error message like this :

configure: error: --with-authmysql specified
configure: error: ./configure failed for authlib

How to solve the problem ?
Thank you in advance.