Asterisk 1.4.0 not compiling chan_zap .. Rather STRANGE

Regards,

sir sorry to disturb u but it seems that i have a problem… I have installed Zaptel 1.4.0 succesfully… Now i started compiling Asterisk 1.4.0…

I gave the first command ./configure
it worked well

then I gave make menuselect when I browsed the menu window…

Under the channel drivers tab i cant find chan_zap, but other chan_* are there is it a problem or i missed something

I tried to compile by ignoring this… But it cant compile chan_zap…
kindly guide…
thanks
riyaz kajalwala