[ns] X library not found!!!

[Lochan Verma]

Dear ns-users,

I have been trying to install ns2.26 with Ubuntu 6.10 and I must say
it is really a big pain.

I downgraded the gcc version and installed some lib. required by
googling about the same.

However,, I am stuck with the error ""Can't find X library"

I followed up the below mentioned link to reach this far.
http://www.gidforums.com/t-18769.html

Surprisingly, I have already installed libX11-dev, and libxt-dev, and xlibs-dev.

I checked the path for libX11 using "whereis libX11" and found it to
be present in /usr/lib.

Thats where it should be..right!!

I am stuck for long at this point....

If nybody could pease help out...I would appreciate.

Thanks,
Lochan.