How to install xirssi?

kimdongseok <[email protected]> Fri, 20 Mar 2009 07:58:30 +0900
Newsgroups gmane.network.irc.irssi.user
Message-ID <[email protected]>
Hello.

# svn co http://svn.irssi.org/repos/xirssi/trunk xirssi
# pwd
/root/xirssi

# ./autogen.sh
# ./configure
configure: error: Irssi directory not found
./configure: line 20935: exit: use: numeric argument required
./configure: line 20935: exit: use: numeric argument required

it is last line error message.

# ./ configure --with-irssi=/root/xirssi
appending configuration tag "F77" to libtool
configure: error: Not irssi directory: /root/xirss

# ./configure --with-irssi=$HOME/.irssi
appending configuration tag "F77" to libtool
configure: error: Not irssi directory: /root/.irssi

it is last line error message

how to install xirssi?
i'm using gentoo linux and not emerging irssi or irssi-svn.