ruby--ruby/ext/tk/README.1st

If you want to use Ruby/Tk (tk.rb and so on), you must have
tcltklib.so which is working collectry. If you fail to call 
'require "tcltklib"', you may not have tcltklib.so. 
Even if there is a tcltklib.so on your Ruby library directry, 
it will not work without Tcl/Tk libraries (e.g. libtcl8.4.so) 
on your environment. You must also check that your Tcl/Tk is 
installed properly. 

--------------------------------------------
 ( the following is written in EUC-JP )

Ruby/Tk (tk.rb <20>ʤ<EFBFBD>) <20><><EFBFBD>Ȥ<EFBFBD><C8A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˤϡ<CBA4>tcltklib.so <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
ư<EFBFBD><EFBFBD><EFBFBD>Ƥ<EFBFBD><EFBFBD>ʤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Фʤ<EFBFBD><EFBFBD>ޤ<EFBFBD><EFBFBD>󡥤⤷ require "tcltklib" <20>˼<EFBFBD><CBBC>Ԥ<EFBFBD><D4A4><EFBFBD>
<EFBFBD>褦<EFBFBD>ʤ顤tcltklib.so <20><>¸<EFBFBD>ߤ<EFBFBD><DFA4>Ƥ<EFBFBD><C6A4>ʤ<EFBFBD><CAA4>Τ<EFBFBD><CEA4>⤷<EFBFBD><E2A4B7><EFBFBD>ޤ<EFBFBD><DEA4><EFBFBD><EFBFBD><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD> Ruby <20>Υ饤<CEA5>֥<EFBFBD><D6A5><EFBFBD><EFBFBD>ǥ<EFBFBD><C7A5>쥯<EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD> tcltklib.so <20><>¸<EFBFBD>ߤ<EFBFBD><DFA4><EFBFBD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȥ<EFBFBD><EFBFBD>Ƥ⡤<EFBFBD>¹ԴĶ<EFBFBD><EFBFBD><EFBFBD> Tcl/Tk <20>饤<EFBFBD>֥<EFBFBD><D6A5><EFBFBD> (libtcl8.4.so <20>ʤ<EFBFBD>) 
<EFBFBD><EFBFBD><EFBFBD>ʤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ǽ<EFBFBD><EFBFBD><EFBFBD>ޤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Tcl/Tk <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>󥹥ȡ<F3A5B9A5><C8A1>뤵<EFBFBD><EBA4B5><EFBFBD>Ƥ<EFBFBD><C6A4>뤫
<EFBFBD>ɤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>å<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

==========================================================
                Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)