[ns] mns_v2.0

[abrar hussain <ahussain@eng.utoledo.edu>]

While adding mns_v2.0 to ns-2.1b8a i am getting the following error.

 Undefined                       first referenced
 symbol                             in file
hdr_ldp::offset_                    mns_v2.0/ldp.o
hdr_mpls::offset_                   mns_v2.0/classifier-addr-mpls.o
ld: fatal: Symbol referencing errors. No output written to ns
collect2: ld returned 1 exit status
*** Error code 1
make: Fatal error: Command failed for target `ns'

 Please help me to overcome this.
 Thanks in advance.
 Abrar.