modifying ns and compiling

[Adib Bashir Motiwala <adibm@cs.tamu.edu>]

hello,

if i am modifying tcp.cc  for the cwnd parameter...

and i am using symbolic links to the entire ns folders.

how do i go abtit .

do i also need to modify tcp.h and some other  files

can some one provide some pointers to where i can find info on the net or
some examples of such modifications to some files.

thanks