problem compiling ns-allinone-2.1b2 : tclcl-mappings.h: parse er

["KJ CURRAN" <kj.curran@ulst.ac.uk>]

I have downloaded and extracted ns-allinone-2.1b2 successfully and it 
compiles up to this point on my solaris sparc 2.4 machine.
The ns-allinone-2.1b5 compiles ok on this machine but I am trying out 
1b2 version for the 'self organised code' to see if it works with 
this version which was closer to the original coded ns that the 
authors worked on..
any ideas?
..
...
....
no dynamic load lib
checking for a BSD compatible install... ./install-sh -c
updating cache ./config.cache
creating ./config.status
creating Makefile
creating ./gen
creating ./bin
gcc -c -I. -I../otcl -I../tkbox/include -I../tclbox/include  -DNO_TK 
-mv8 -msupersparc -D__svr4__ -DUSE_SHM -DHAVE_LIBOTCL0_96
-DHAVE_OTCL_H -DHAVE_LIBTK8_0 -DHAVE_TK_H -DHAVE_LIBTCL8_0
-DHAVE_TCL_H  -O2 -o tcl2c++.o tcl2c++.c rm -f tcl2c++ c++   -o
tcl2c++ tcl2c++.o c++ -c -I. -I../otcl -I../tkbox/include
-I../tclbox/include  -DNO_TK  -mv8 -msupersparc -D__svr4__ -DUSE_SHM
-DHAVE_LIBOTCL0_96 -DHAVE_OTCL_H -DHAVE_LIBTK8_0 -DHAVE_TK_H
-DHAVE_LIBTCL8_0 -DHAVE_TCL_H  -O2 -o Tcl.o Tcl.cc tclcl-mappings.h:
In function `static int TclObjectHelper<T>::dispatch_(void *, struct
Tcl_Interp *, int, char **)': In file included from tclcl.h:47,
                 from Tcl.cc:50:
tclcl-mappings.h:51: parse error before `::'
make: *** [Tcl.o] Error 1
TclCL make failed! Exiting ...
fair:~/ns-allinone>