[ns] installtion problem: "tcl is required but not found"

[Leonardo da Silva Mattos <lsmattos@ece.nps.navy.mil>]

Hi, when installing the CMU extensions, using the "sh configure-2 " command,
I am getting this error below. I edited the makefile.in and configure-2
so that they could ginf the correct pat, but I am still getting errors.
Any help will be appreciated, Thanks.

No .configure file found in current directory
Continuing with default options...
checking host system type... sparc-sun-sunos4.1.4
checking target system type... sparc-sun-sunos4.1.4
checking build system type... sparc-sun-sunos4.1.4
checking for gcc... gcc
checking whether the C compiler (gcc  ) works... yes
checking whether the C compiler (gcc  ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
checking for c++... c++
checking whether the C++ compiler (c++  ) works... yes
checking whether the C++ compiler (c++  ) is a cross-compiler... no
checking whether we are using GNU C++... yes
checking whether c++ accepts -g... yes
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... no
checking for string.h... yes
checking for main in -lXbsd... no
checking for socket in -lsocket... no
checking for gethostbyname in -lnsl... yes
checking for dcgettext in -lintl... no
checking for getnodebyname in -ldnet_stub... no
checking that c++ can handle -O2... no
checking for tcl.h... -I../tcl8.0.4/generic
checking for libtcl8.0... -L../tcl8.0.4/unix -ltcl80
checking for init.tcl... no
d is
checking for tclsh8.0.4... no
checking for tclsh8.0... no
checking for tclsh... no
checking for tclsh7.6... no
configure: error: Installation of tcl seems incomplete.
Please correct the problem or re-run with --with-tcl=no.