Problem with ns-2.1b4 installation on Win98

[Brett Vickers <bvickers@cs.rutgers.edu>]

On my Windows 98 system, I used Visual C++ 5.0 to compile ns-2.1b4 and
all of its required packages (Tcl/Tk/Otcl/Tclcl).  The compiles were
successful(*), and an executable ns.exe was produced.  However, when I
run ns.exe, it does something strange: it outputs the entire
ASCII-fied contents of the gen/ns_tcl.cc file and exits.  I never get
a "%" prompt.  Any idea why this is happening?

(*) The ns-2.1b4 distribution did not contain prune.cc and prune.h.  I
had to use the ns-2.1b3 versions.

Brett