ns installation error

[Ibrahim Korpeoglu <korpe@cs.ucr.edu>]

Hi, 

I am trying to install ns version 2 and got stuck at the following
error. Can anybody have a suggestion? 

thanks, 

Ibrahim. 


---- error ----

>make
c++ -static  -o ns  tclAppInit.o inet.o random.o rng.o ranvar.o misc.o timer-handler.o  scheduler.o object.o  packet.o ip.o route.o connector.o ttl.o  trace.o trace-ip.o  classifier.o classifier-addr.o classifier-flow.o classifier-hash.o  classifier-mcast.o classifier-mpath.o replicator.o  classifier-mac.o  cbr.o traffictrace.o pareto.o expoo.o telnet.o tcplib-telnet.o  agent.o message.o udp.o session-rtp.o rtp.o rtcp.o ivs.o  tcp.o tcp-sink.o tcp-reno.o tcp-newreno.o  tcp-vegas.o tcp-rbp.o tcp-full.o  scoreboard.o tcp-sack1.o tcp-fack.o  tcp-asym.o tcp-asym-sink.o tcp-int.o chost.o nilist.o tcp-fs.o  integrator.o queue-monitor.o flowmon.o loss-monitor.o  queue.o drop-tail.o red.o  semantic-packetqueue.o semantic-red.o ack-recons.o  sfq.o fq.o drr.o cbq.o  hackloss.o errmodel.o  delay.o ll.o snoop.o  channel.o mac.o mac-csma.o mac-802_11.o mac-multihop.o  dynalink.o rtProtoDV.o net-interface.o  ctrMcast.o prune.o srm.o  sessionhelper.o delaymodel.o srm-ssm.o  lib/int.Vec.o lib!
/int.RVec.o  lib/dmalloc_support.o  net.o net-ip.o tap.o gen/version.o gen/ns_tcl.o  win32.o -L/usr/local/lib -ltclcl -L/usr/local/lib -lotcl -L/usr/local/lib -ltcl76   -L/usr/X11R6/lib -lXext -lX11   -lm
tclLoadDl2.o: Undefined symbol `_dlopen' referenced from text segment
tclLoadDl2.o: Undefined symbol `_dlsym' referenced from text segment
tclLoadDl2.o: Undefined symbol `_dlsym' referenced from text segment
tclLoadDl2.o: Undefined symbol `_dlerror' referenced from text segment
*** Error code 1

Stop.