[ns] Error while installing NS2 in Ubuntu 12.04..!

I receive the following error while installing ns2 (sudo ./install) in ubuntu. config.status: creating Makefile rm -f libotcl.a otcl.o gcc -V 4.5 -c -g -O2 -DNDEBUG -DUSE_SHM -DHAVE_UNISTD_H=1 -I. -I/home/arya/ns-allinone- 2.35/include -I/home/arya/ns-allinone-2.35/include -I/home/arya/ns-allino

Re: [ns] Help .. Error running wireless protocols in ns2.

Here is the code.. # Define options set val(chan) Channel/WirelessChannel;# channel type set val(prop) Propagation/TwoRayGround ;# radio-propagation model set val(netif) Phy/WirelessPhy;# network interface type set val(mac)Mac/802_11