[ns] Compilation error in tclcl-1.0b9

["Nanda, Debasis" <DNanda@necam.com>]

Hi Salehi,
I downloaded the "allinone" version 2.1b6 from
http://www-mash.cs.berkeley.edu/dist/vint/ns-allinone-2.1b6a.tar.gz and
issued the ./install at the root directory . During the compilation of tclcl
i had this error.
I am using RedHat linux 7.0 which has gcc 2.96.
Please advise.
Regards
Debasis Nadna
....
....
No explicit static compilation flag; setting V_STATIC to ""
checking for dlopen in -ldl... (cached) yes
checking for a BSD compatible install... (cached) /usr/bin/install -c
creating ./config.status
creating Makefile
c++ -c -O2 -DNO_TK  -DNDEBUG -DUSE_SHM -DHAVE_LIBOTCL1_0A4 -DHAVE_OTCL_H
-DHAVE_LIBTK8_0 -DHAVE_TK_H -DHAVE_LIBTCL8_0 -DHAVE_TCL_H   -DSTDC_HEADERS=1
-DHAVE_STRING_H=1 -DHAVE_SNPRINTF=1 -DHAVE_STRTOQ=1 -DHAVE_STRTOLL=1
-DSIZEOF_LONG=4 -DHAVE_INT64=1 -DHAVE_TCL_H=1 -DHAVE_LIBTCL8_0=1
-DHAVE_TK_H=1 -DHAVE_LIBTK8_0=1 -DHAVE_OTCL_H=1 -DHAVE_LIBOTCL1_0A4=1  -I.
-I/home/debasis/ns_ucb/ns-allinone-2.1b6/otcl-1.0a5
-I/home/debasis/ns_ucb/ns-allinone-2.1b6/tkbox/include
-I/home/debasis/ns_ucb/ns-allinone-2.1b6/tclbox/include -o tracedvar.o
tracedvar.cc
tracedvar.cc: In method `char *TracedInt::value (char *, int)':
tracedvar.cc:102: `abort' undeclared (first use this function)
tracedvar.cc:102: (Each undeclared identifier is reported only once for
each function it appears in.)
make: *** [tracedvar.o] Error 1
tclcl-1.0b9 make failed! Exiting ...
See http://www-mash.CS.Berkeley.EDU/ns/ns-problems.html for problems
[root@localhost ns-allinone-2.1b6]#