How to download and install Xchat
wget http://xchat.org/files/source/2.8/xchat-2.8.0.tar.bz2
tar -xvf xchat-2.8.0.tar.bz2
cd xchat-2.8.0
./configure
you see following error, install gtk3 libraries
Building GTK+ Interface .... : no
yum install gtk3 gtk3-devel
Now redo configure again
./configure
make
make install