daily-snapshot install problem

[Seung-Gu Na <sgna@dokdo.dongguk.ac.kr>]

I tried to install a daily snapshot after installing ns2-allinone-2.1b5.
Of course, I downloaded the daily snapshot files(tclcl-1.0b8-current, nam-1.0a8-current).
But I got the error. Why this happened?

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checking for main in -ldl... (cached) yes
checking for a BSD compatible install... ./install-sh -c
creating ./config.status
creating Makefile
creating tcl/lib/ns-autoconf.tcl
creating indep-utils/webtrace-conv/ucb/Makefile
creating indep-utils/webtrace-conv/dec/Makefile
creating indep-utils/webtrace-conv/nlanr/Makefile
creating indep-utils/webtrace-conv/epa/Makefile
creating indep-utils/cmu-scen-gen/setdest/Makefile
creating autoconf.h
autoconf.h is unchanged
/usr1/home/sgna/ns-allinone-2.1b5/tclbox/bin/tclsh8.0 bin/tcl-expand.tcl tcl/lib/ns-lib.tcl | ../tclcl-1.0b8-current/tcl2c++ et_ns_lib > gen/ns_tcl.cc
c++ -c  -DNO_TK -DTCLCL_CLASSINSTVAR  -DNDEBUG -mv8 -msupersparc -D__svr4__ -DUSE_SHM -DHAVE_LIBTCLCL1_0B8 -DHAVE_TCLCL_H -DHAVE_LIBOTCL1_0A4 -DHAVE_OTCL_H -DHAVE_LIBTK8_0 -DHAVE_TK_H -DHAVE_LIBTCL8_0 -DHAVE_TCL_H  -DHAVE_CONFIG_H -I. -I/usr/openwin/include  -I../tclcl-1.0b8-current -I../otcl-1.0a4 -I../tkbox/include -I../tclbox/include -o gen/ns_tcl.o gen/ns_tcl.cc
c++  -o ns \
for i in indep-utils/cmu-scen-gen/setdest  indep-utils/webtrace-conv/dec  indep-utils/webtrace-conv/epa  indep-utils/webtrace-conv/nlanr  indep-utils/webtrace-conv/ucb; do ( cd $i; make all; ) done
c++ -c  -I. -I../../.. -I../tclcl-1.0b8-current -I../otcl-1.0a4 -I../tkbox/include -I../tclbox/include -o tr-stat.o tr-stat.cc
In file included from logparse.h:7,
                 from tr-stat.cc:24:
../../../config.h:56: tclcl.h: No such file or directory
*** Error code 1
make: Fatal error: Command failed for target `tr-stat.o'
Current working directory /usr1/home/sgna/ns-allinone-2.1b5/ns-2.1b6-current/indep-utils/webtrace-conv/nlanr
*** Error code 1
make: Fatal error: Command failed for target `all-recursive'
Ns make failed! Exiting ...