ns won't recompile after adding the PGM contributed code

[Ronen Chayat <ronch@techunix.technion.ac.il>]

Hi,

For the last few days I've been trying to compile the version
available at - http://www-mash.cs.berkeley.edu/ns/ns-contributed.html
under ns-2.1b5 (Linux).
Compilation of ns seems to succeed, but when trying to run 'ns'
instead of getting the usual '%' prompt I get an endless text listing
starting with:

ns: 


proc warn msg {
global warned_
if ![info exists warned_($msg)] {
puts stderr $msg
set warned($msg) 1
}
}
...
...
...

How can I get it fixed ? Is there any newer version I can use ?

Many thanks for your help.
Ron.