[ns] a problem in installing the ns2.1b8-mcast

[sai krish]

hi
i am trying to install ns2.1b8-mcast
first i have exectuted the command ./configure ,it
created the make file
but when i executed make command it is giving a error 
i am pasting it below

In file included from mac.h:46,
                 from odmrp/join_query_timer.h:47,
                 from odmrp/join_query_timer.cc:37:
route.h:46:1: warning: "INFINITY" redefined
In file included from /usr/include/math.h:40,
                 from trace.h:42,
                 from odmrp/join_query_timer.h:44,
                 from odmrp/join_query_timer.cc:37:
/usr/include/bits/mathdef.h:35:1: warning: this is the
location of the previous
definition
In file included from odmrp/defs.h:120,
                 from odmrp/join_query_timer.h:50,
                 from odmrp/join_query_timer.cc:37:
odmrp/hdr_o.h:140:8: warning: extra tokens at end of
#endif directive
In file included from odmrp/join_query_timer.cc:37:
odmrp/join_query_timer.h:83: syntax error before `;'
token
odmrp/join_query_timer.h:103: syntax error before `*'
token
odmrp/join_query_timer.h:104: syntax error before `*'
token
odmrp/join_query_timer.h: In member function `int
JoinQueryTimer::valid()':
odmrp/join_query_timer.h:94: `timers_head' undeclared
(first use this function)
odmrp/join_query_timer.h:94: (Each undeclared
identifier is reported only once
   for each function it appears in.)
odmrp/join_query_timer.cc: In constructor
   `JoinQueryTimer::JoinQueryTimer(ODMRPAgent*)':
odmrp/join_query_timer.cc:44: `timers_tail' undeclared
(first use this
   function)
make: *** [odmrp/join_query_timer.o] Error 1


can any one help me to resolve it
thank you
krish

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