undefined reference to 'functions'

i have added a module to ns2 and i am compiling it when i get undefined reference error.
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g++ -lneoclassic -lrt -o ns \
    		common/tclAppInit.o  tools/random.o tools/rng.o tools/ranvar.o common/misc.o common/timer-handler.o common/scheduler.o common/object.o common/packet.o common/ip.o routing/route.o common/connector.o common/ttl.o trace/trace.o trace/trace-ip.o classifier/classifier.o classifier/classifier-addr.o classifier/classifier-hash.o classifier/classifier-virtual.o classifier/classifier-mcast.o classifier/classifier-bst.o classifier/classifier-mpath.o mcast/replicator.o classifier/classifier-mac.o classifier/classifier-qs.o classifier/classifier-port.o src_rtg/classifier-sr.o src_rtg/sragent.o src_rtg/hdr_src.o adc/ump.o qs/qsagent.o qs/hdr_qs.o apps/app.o apps/telnet.o tcp/tcplib-telnet.o tools/trafgen.o trace/traffictrace.o tools/pareto.o tools/expoo.o tools/cbr_traffic.o adc/tbf.o adc/resv.o adc/sa.o tcp/saack.o tools/measuremod.o adc/estimator.o adc/adc.o adc/ms-adc.o adc/timewindow-est.o adc/acto-adc.o adc/pointsample-est.o adc/salink.o adc/actp-adc.o adc/hb-adc.o adc/expavg-est.o adc/param-adc.o adc/null-estimator.o adc/adaptive-receiver.o apps/vatrcvr.o adc/consrcvr.o common/agent.o common/message.o apps/udp.o common/session-rtp.o apps/rtp.o tcp/rtcp.o common/ivs.o common/messpass.o common/tp.o common/tpm.o apps/worm.o tcp/tcp.o tcp/tcp-sink.o tcp/tcp-reno.o tcp/tcp-newreno.o tcp/tcp-vegas.o tcp/tcp-rbp.o tcp/tcp-full.o tcp/rq.o baytcp/tcp-full-bay.o baytcp/ftpc.o baytcp/ftps.o tcp/scoreboard.o tcp/scoreboard-rq.o tcp/tcp-sack1.o tcp/tcp-fack.o tcp/tcp-asym.o tcp/tcp-asym-sink.o tcp/tcp-fs.o tcp/tcp-asym-fs.o tcp/tcp-int.o tcp/chost.o tcp/tcp- mcast/mcast_ctrl.o mcast/srm.o common/sessionhelper.o queue/delaymodel.o mcast/srm-ssm.o mcast/srm-topo.o routing/alloc-address.o routing/address.o lib/int.Vec.o lib/int.RVec.o lib/dmalloc_support.o webcache/http.o webcache/tcp-simple.o webcache/pagepool.o webcache/inval-agent.o webcache/tcpapp.o webcache/http-aux.o webcache/mcache.o webcache/webtraf.o webcache/webserver.o webcache/logweb.o empweb/empweb.o empweb/empftp.o realaudio/realaudio.o mac/lanRouter.o classifier/filter.o common/pkt-counter.o common/Decapsulator.o common/Encapsulator.o common/encap.o mac/channel.o mac/mac.o mac/ll.o mac/mac-802_11.o mac/mac-802_3.o mac/mac-tdma.o mac/smac.o mobile/mip.o mobile/mip-reg.o mobile/gridkeeper.o mobile/propagation.o mobile/tworayground.o mobile/antenna.o mobile/omni-antenna.o mobile/shadowing.o mobile/shadowing-vis.o mobile/dumb-agent.o common/bi-connector.o common/node.o common/mobilenode.o mac/arp.o mobile/god.o mobile/dem.o mobile/topography.o mobile/modulation.o queue/priqueue.o queue/dsr-priqueue.o mac/phy.o mac/wired-phy.o mac/wireless-phy.o mac/mac-timers.o trace/cmu-trace.o mac/varp.o mac/mac-simple.o satellite/sat-hdlc.o dsdv/dsdv.o dsdv/rtable.o queue/rtqueue.o routing/rttable.o imep/imep.o imep/dest_queue.o imep/imep_api.o imep/imep_rt.o imep/rxmit_queue.o imep/imep_timers.o imep/imep_util.o imep/imep_io.o tora/tora.o tora/tora_api.o tora/tora_dest.o tora/tora_io.o tora/tora_logs.o tora/tora_neighbor.o dsr/dsragent.o dsr/hdr_sr.o dsr/mobicache.o dsr/path.o dsr/requesttable.o dsr/routecache.o dsr/add_sr.o dsr/dsr_proto.o dsr/flowstruct.o dsr/linkcache.o dsr/simplecache.o dsr/sr_forwarder.o aodv/aodv_logs.o aodv/aodv.o aodv/aodv_rtable.o aodv/aodv_rqueue.o common/ns-process.o satellite/satgeometry.o satellite/sathandoff.o satellite/satlink.o satellite/satnode.o satellite/satposition.o satellite/satroute.o satellite/sattrace.o rap/raplist.o rap/rap.o rap/media-app.o rap/utilities.o common/fsm.o tcp/tcp-abs.o diffusion/diffusion.o diffusion/diff_rate.o diffusion/diff_prob.o diffusion/diff_sink.o diffusion/flooding.o diffusion/omni_mcast.o diffusion/hash_table.o diffusion/routing_table.o diffusion/iflist.o tcp/tfrc.o tcp/tfrc-sink.o mobile/energy-model.o apps/ping.o tcp/tcp-rfc793edu.o queue/rio.o queue/semantic-rio.o tcp/tcp-sack-rh.o tcp/scoreboard-rh.o plm/loss-monitor-plm.o plm/cbr-traffic-PP.o linkstate/hdr-ls.o mpls/classifier-addr-mpls.o mpls/ldp.o mpls/mpls-module.o routing/rtmodule.o classifier/classifier-hier.o routing/addr-params.o nix/hdr_nv.o nix/classifier-nix.o nix/nixnode.o routealgo/rnode.o routealgo/bfs.o routealgo/rbitmap.o routealgo/rlookup.o routealgo/routealgo.o nix/nixvec.o nix/nixroute.o diffserv/dsred.o diffserv/dsredq.o diffserv/dsEdge.o diffserv/dsCore.o diffserv/dsPolicy.o diffserv/ew.o diffserv/dewp.o queue/red-pd.o queue/pi.o queue/vq.o queue/rem.o queue/gk.o pushback/rate-limit.o pushback/rate-limit-strategy.o pushback/ident-tree.o pushback/agg-spec.o pushback/logging-data-struct.o pushback/rate-estimator.o pushback/pushback-queue.o pushback/pushback.o common/parentnode.o trace/basetrace.o common/simulator.o asim/asim.o common/scheduler-map.o common/splay-scheduler.o linkstate/ls.o linkstate/rtProtoLS.o pgm/classifier-pgm.o pgm/pgm-agent.o pgm/pgm-sender.o pgm/pgm-receiver.o mcast/rcvbuf.o mcast/classifier-lms.o mcast/lms-agent.o mcast/lms-receiver.o mcast/lms-sender.o queue/delayer.o xcp/xcpq.o xcp/xcp.o xcp/xcp-end-sys.o wpan/p802_15_4csmaca.o wpan/p802_15_4fail.o wpan/p802_15_4hlist.o wpan/p802_15_4mac.o wpan/p802_15_4nam.o wpan/p802_15_4phy.o wpan/p802_15_4sscs.o wpan/p802_15_4timer.o wpan/p802_15_4trace.o wpan/p802_15_4transac.o maser/maser.o maser/mamas.o diffusion3/lib/nr/nr.o diffusion3/lib/dr.o diffusion3/filters/diffusion/one_phase_pull.o diffusion3/filters/diffusion/two_phase_pull.o diffusion3/lib/diffapp.o diffusion3/ns/diffagent.o diffusion3/ns/diffrtg.o diffusion3/ns/difftimer.o diffusion3/filter_core/filter_core.o diffusion3/filter_core/iolog.o diffusion3/filter_core/iostats.o diffusion3/lib/main/attrs.o diffusion3/lib/main/events.o diffusion3/lib/main/iodev.o diffusion3/lib/main/iohook.o diffusion3/lib/main/timers.o diffusion3/lib/main/message.o diffusion3/lib/main/tools.o diffusion3/apps/gear_examples/gear_common.o diffusion3/apps/gear_examples/gear_receiver.o diffusion3/apps/gear_examples/gear_sender.o diffusion3/apps/rmst_examples/rmst_sink.o diffusion3/apps/rmst_examples/rmst_source.o diffusion3/apps/ping/1pp_ping_sender.o diffusion3/apps/ping/1pp_ping_receiver.o diffusion3/apps/ping/2pp_ping_sender.o diffusion3/apps/ping/2pp_ping_receiver.o diffusion3/apps/ping/ping_common.o diffusion3/apps/ping/push_receiver.o diffusion3/apps/ping/push_sender.o diffusion3/filters/gear/gear_attr.o diffusion3/filters/gear/gear.o diffusion3/filters/gear/gear_tools.o diffusion3/filters/misc/log.o diffusion3/filters/misc/srcrt.o diffusion3/filters/misc/tag.o diffusion3/filters/rmst/rmst.o diffusion3/filters/rmst/rmst_filter.o delaybox/delaybox.o packmime/packmime_HTTP.o packmime/packmime_HTTP_rng.o packmime/packmime_OL.o packmime/packmime_OL_ranvar.o packmime/packmime_ranvar.o gen/version.o gen/ns_tcl.o gen/ptypes.o  common/win32.o -L/usr/local/lib -ltclcl -L/usr/local/lib -lotcl -L/usr/local/lib -ltk8.4 -L/usr/local/lib -ltcl8.4 -lXext -lX11 -lnsl -ldl -lm -lm 
    maser/mamas.o: In function `mamasReasoner::mamasReasoner()':
    mamas.cc:(.text+0x95): undefined reference to `NeoEnvironment::initFromNs(std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >&, std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >&, int)'
    maser/mamas.o: In function `mamasReasoner::build_ontology_tree(knBase&)':
    mamas.cc:(.text+0x1c4c): undefined reference to `clock_getcpuclockid'
    mamas.cc:(.text+0x1c84): undefined reference to `NeoEnvironment::evaluateCommand(String const&)'
    maser/mamas.o: In function `NeoEnvironment::readXmlFromMemory(char const*, char const*)':
    mamas.cc:(.text._ZN14NeoEnvironment17readXmlFromMemoryEPKcS1_[NeoEnvironment::readXmlFromMemory(char const*, char const*)]+0x14): undefined reference to `Parser::readXmlFromMemory(char const*, char const*)'
    /usr/local/lib/libneoclassic.so: undefined reference to `xmlXPathCompiledEval'
    collect2: ld returned 1 exit status
    make: *** [ns] Error 1

the library which it is asking for is present at the
/usr/local/lib/libneoclassic.so
and the makefile can be seen here http://pastebin.com/NZWPxKht
which use the following code for linking.
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    LINK    = g++
    LDFLAGS =  -lneoclassic -lrt
    LDOUT   = -o $(BLANK)
    LIB     = \
            -L/usr/local/lib -ltclcl -L/usr/local/lib -lotcl -L/usr/local/lib -ltk8.4 -L/usr/local/lib -ltcl8.4 \
            -lXext -lX11 \
             -lnsl -ldl \
            -lm -lm
    $(LINK) $(LDFLAGS) $(LDOUT)$@ \
                        common/tclAppInit.o $(OBJ) $(LIB)
after adding lxml2 library to linker flag i was past few of the errors but i need help in these other errors
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g++ -lneoclassic -lrt -lxml2 -o ns \
maser/mamas.o: In function `mamasReasoner::mamasReasoner()':
mamas.cc:(.text+0x95): undefined reference to `NeoEnvironment::initFromNs(std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >&, std::basic_ostringstream<char, std::char_traits<char>, std::allocator<char> >&, int)'
maser/mamas.o: In function `mamasReasoner::build_ontology_tree(knBase&)':
mamas.cc:(.text+0x1c4c): undefined reference to `clock_getcpuclockid'
mamas.cc:(.text+0x1c76): undefined reference to `clock_gettime'
mamas.cc:(.text+0x1c84): undefined reference to `NeoEnvironment::evaluateCommand(String const&)'
mamas.cc:(.text+0x1c99): undefined reference to `clock_gettime'
maser/mamas.o: In function `NeoEnvironment::readXmlFromMemory(char const*, char const*)':
mamas.cc:(.text._ZN14NeoEnvironment17readXmlFromMemoryEPKcS1_[NeoEnvironment::readXmlFromMemory(char const*, char const*)]+0x14): undefined reference to `Parser::readXmlFromMemory(char const*, char const*)'
collect2: ld returned 1 exit status
make: *** [ns] Error 1 
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