Newbie question about solaris and ruby/tk

hello,
Ihave installed the SUN’s package of ruby under solaris 8.
I was happy to find that tcltklib was comiled within:

$ ls -l /opt/sfw/lib/ruby/1.6/sparc-solaris2.8/tcltklib.so
-r-xr-xr-x 1 root bin 115916 nov 28 2001
/opt/sfw/lib/ruby/1.6/sparc-solaris2.8/tcltklib.so

But when I try to load it , I get this message:

$ irb
irb(main):001:0> require 'tk’
LoadError: ld.so.1: ruby: fatal: libtk8.3.so: open failed: No such file
or directory - /opt/sfw/lib/ruby/1.6/sparc-solaris2.8/tcltklib.so
from /opt/sfw/lib/ruby/1.6/tk.rb:7:in require' from /opt/sfw/lib/ruby/1.6/tk.rb:7 from (irb):1:inrequire’
from (irb):1

I have configured this environment variable:

$ echo $LD_LIBRARY_PATH
/opt/sfw/lib/ruby/1.6/sparc-solaris2.8/

and:
export RUBYLIB=/opt/sfw/lib/ruby/1.6/sparc-solaris2.8

$ irb
irb(main):001:0> puts RUBY_PLATFORM
sparc-solaris2.8

but it still not work. It seems to be a newbie problem, please help me
:->

thx
jf

LoadError: ld.so.1: ruby: fatal: libtk8.3.so: open failed: No such file

tcl/tk is not installed on your system, ruby can't find libtk8.3.so

You must install the package which contains libtk8.3.so

Guy Decoux