problems installing ns-allinone-2.1b4 ns-2/gen/version.c

[sundeep@cadence.com (Sundeep Singatwaria)]

I'm trying to install ns-allinone-2.1b4 but 'm getting following error message

rm -f gen/version.c
tclsh8.0 bin/string2c.tcl version_string < VERSION > gen/version.c
cc -c -g -Wall -DNO_TK -DTCLCL_CLASSINSTVAR  -DNDEBUG -D__svr4__ -DUSE_SHM 
-DHAVE_LIBTCLCL1_0B7 -DHAVE_TCLCL_H -DHAVE_LIBOTCL1_0A3 -DHAVE_OTCL_H 
-DHAVE_LIBTK8_0 -DHAVE_TK_H -DHAVE_LIBTCL8_0 -DHAVE_TCL_H   -DSTDC_HEADERS=1 
-DHAVE_STRING_H=1 -DHAVE_TCL_H=1 -DHAVE_LIBTCL8_0=1 -DHAVE_TK_H=1 
-DHAVE_LIBTK8_0=1 -DHAVE_OTCL_H=1 -DHAVE_LIBOTCL1_0A3=1 -DHAVE_TCLCL_H=1 
-DHAVE_LIBTCLCL1_0B7=1 -DHAVE_GETRUSAGE=1 -DHAVE_SBRK=1 -DHAVE_LIBDL=1 -DNO_TK 
-DTCLCL_CLASSINSTVAR  -DNDEBUG -D__svr4__ -DUSE_SHM -DHAVE_LIBTCLCL1_0B7 
-DHAVE_TCLCL_H -DHAVE_LIBOTCL1_0A3 -DHAVE_OTCL_H -DHAVE_LIBTK8_0 -DHAVE_TK_H 
-DHAVE_LIBTCL8_0 -DHAVE_TCL_H   -DSTDC_HEADERS=1 -DHAVE_STRING_H=1 -DHAVE_TCL_H=1 
-DHAVE_LIBTCL8_0=1 -DHAVE_TK_H=1 -DHAVE_LIBTK8_0=1 -DHAVE_OTCL_H=1 
-DHAVE_LIBOTCL1_0A3=1 -DHAVE_TCLCL_H=1 -DHAVE_LIBTCLCL1_0B7=1 -DHAVE_GETRUSAGE=1 
-DHAVE_SBRK=1 -DHAVE_LIBDL=1 -I.   -I../tclcl -I../otcl -I../tkbox/include 
-I../tclbox/include -o gen/version.o gen/version.c
cc: illegal option -Wall
*** Error code 1
make: Fatal error: Command failed for target `gen/version.o'
Ns make failed! Exiting ...

Can someone help me resolve the problem.

Thanks
-sundeep