NS tools installation on ubuntu14.04

Download the ns-allinone-2.35 from here
Unzip the package to your home directory.
           ex. /home/parimal/

First and foremost we need to update the library

Initial command:    sudo apt-get install build-essential
   

               build-essential is a metapackage (a package that installs many other packages, like g++ and gcc: the GNU C & C++ compilers). It's required if you want to compile anything from source, and if you want to work with almost any programming language.

STEP 1:        ~$ sudo apt-get install gcc-4.4 g++-4.4
STEP 2:        ~$ sudo apt-get install libxt-dev libx11-dev libxmu-dev xorg-dev xgraph
STEP 3:        ~$ cd /home/parimal/ns-allinone-2.35
STEP 4:        ~$ gedit /home/parimal/ns-allinone-2.35/otcl-1.14/configure

          Linux*)
            SHLIB_CFLAGS="-fPIC"
            SHLIB_LD_LIBS=""
            SHLIB_SUFFIX=".so"
            if test "$have_dl" = yes; then
                  #  SHLIB_LD="${CC} -shared"        // comment this line (line number 6576 )
                    SHLIB_LD=”gcc -shared”         // add this line
                    DL_LIBS="-ldl"
                    DL_LD_FLAGS="-rdynamic"

STEP 5:        ~$ gedit /home/parimal/ns-allinone-2.35/tcl8.4.18/unix/Makefile.in
         #CC = @CC@                 // comment this line (line number 232)
            CC = @CC@-4.4                // add this line

STEP 6:        ~$ gedit /home/parimal/ns-allinone-2.35/ns-2.35/Makefile.in
            #CC = @CC@                // comment these two lines (line number 36 & 37 )
            #CPP = @CXX@
            CC = @CC@-4.4                // add these lines
            CPP = @CXX@-4.4

STEP 7:        ~$ gedit /home/parimal/ns-allinone-2.35/ns-2.35/Makefile
            #CC = gcc                // comment these two lines (line number 36 & 37 )
            #CPP = g++
            CC = gcc-4.4                // add these lines
            CPP = g++-4.4   
 
STEP 8:        cd ~/ns-allinone-2.35
                     ./install

STEP 9:        cd ns-2.35
                     sudo make install
                     cd ../nam1.15
                     sudo make install
       
STEP 10:      cd ~/ns-allinone-2.35
                     ./validate