Please Help ~~ I can't install NS-simulator

["Jongil, Park" <jipark@nwork.chungbuk.ac.kr>]

Dear, friends.
During Installation, I get following message.
I don't know cause of this message....
Please help me.
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c++ -static -o ns -I/home/Tcl-1.0a6 -mv8 -msupersparc -D__svr4__
-DUSE_SHM -DNO_TK -O2  scheduler.o ns_tclsh.o object.o  classifier.o
classifier-addr.o
classifier-mcast.o replicator.o  packet.o connector.o agent.o cbr.o
misc.o
delay.o queue.o drop-tail.o random.o trace.o  tcp.o tcp-sink.o
tcp-reno.o
tcp-newreno.o  tcplib-telnet.o red.o route.o  loss-monitor.o message.o
ivs.o  scoreboard.o
tcp-sack1.o  session-rtp.o rtp.o rtcp.o gen/version.o gen/ns_tcl.o
-R/home/Tcl-1.0a6 -L/home/Tcl-1.0a6 -lTcl -R/usr/local/lib
-L/usr/local/lib -lotcl -ltcl
-lsocket -lnsl -lintl
Undefined                       first referenced
 symbol                             in file
dlclose                             /usr/lib/libnsl.a(netdir.o)
dlsym                               /usr/lib/libtcl.a(tclLoadDl.o)
dlopen                              /usr/lib/libtcl.a(tclLoadDl.o)
dlerror                             /usr/lib/libtcl.a(tclLoadDl.o)
ld: fatal: Symbol referencing errors. No output written to ns
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Computer Engineering, Chungbuk National University, Korea
Network Laboratory
Jong-il, Park (Webmaster)
http://nwork.chungbuk.ac.kr/~jipark
http://dce3.chungbuk.ac.kr/bbs/
http://cbubbs.chungbuk.ac.kr/ (Administrator)
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