not able to get effect of modified tcp.cc file in NS2.35 (ubuntu-12.10)

Question

I have modified tcp.cc file and then in terminal I executed these commands at /ns2.35 directory

./configure
make clean
make
make install

But in 'make install' I am getting following error:

for d in /usr/local/man/man1; do \
        if [ ! -d $d ]; then \
            mkdir -p $d ;\
        fi;\
    done
/usr/bin/install -c -m 755 ns /usr/local/bin
/usr/bin/install -c -m 644 ns.1 /usr/local/man/man1

And I am not getting effect of modified tcp. while I run 'which ns ' terminal shows '/usr/local/bin/'. and my downloaded source code is in/home/ns/... Please tell me how to get rid of this problem...Thanks

Answer 1

Simple solution is to after modification of tcp.cc, run following command in /ns2.35/ directory

./configure
make clean
make
make install

However I'm getting error, but I ignore it. Then to run any further tcl-scripts I need to go to ~/ns2.35/ directory and I get effect of modified tcp.cc.

Answer 2

Those messages look like perfectly legitimate instructions issued by make install to perform the installation (make likes to print a log of what it is doing, to aid debugging). They're not wrong, not at all. Indeed, the /usr/bin/install -c -m 755 ns /usr/local/bin is the thing that copies the built version of the executable binary (ns) into its target location (/usr/local/bin) so that it can be run by any user of the system.

Whatever is going wrong, if anything, it's definitely not the parts that you have told us in detail. (If it is failing to install, the most likely cause of the problem by far is a failure to elevate your permissions first: often you need sudo make install instead of just plain make install…)

Answer 3

Yes,you will get file error when you run make install as you are running as user and the permission will be denied

Just run "sudo make install".

Now all changes will be affected to all files