[ns] Q configuration of ns-2 after changing protocol source code

[aref hp]

Dear all,
I'm going to change DSDV routing protocol source code in ns-2. After
changing the source code I have done these steps for ns-2 in the directory
of ns-2.
1- sudo make clean
2-sudo ./configure
3-sudo make
4-sudo ./validate

But after running the scenario which I have run with original DSDV, I
get exactly same result as before.  ns-2 with this protocol
works exactly like before.
Please help me to how should I run the new source code of protocol

Thanks in advanced
Aref