There is a software that lets you perform the steps described in previous section so that they generate a deb file. The generated package is not only created but also automagically installed. The software name is: checkinstall.

You have to get it first:

$sudo apt-get install checkinstall

The usage is trivial - checkinstall creates a sandbox for the build process, grabs the generated binaries and creates a deb package. What you need to do is to call it before make install. So the last otcl, tclcl and ns build steps from method 1 should look like:

$sudo check install make install

If you want to install ns-2 system-wide, of course.