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Member "ruby-1.8.7-p72/ext/tk/README.1st" of archive ruby-1.8.7-p72.tar.gz:

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    1 If you want to use Ruby/Tk (tk.rb and so on), you must have tcltklib.so 
    2 which is working correctly. When you have some troubles on compiling, 
    3 please read README.tcltklib and README.ActiveTcl. 
    4 Even if there is a tcltklib.so on your Ruby library directry, it will not 
    5 work without Tcl/Tk libraries (e.g. libtcl8.4.so) on your environment. 
    6 You must also check that your Tcl/Tk is installed properly. 
    7 
    8 --------------------------------------------
    9  ( the following is written in EUC-JP )
   10 
   11 Ruby/Tk (tk.rb など) を使いたい場合には，tcltklib.so が正しく動いていな
   12 ければなりません．コンパイル時に何か問題が生じた場合は，README.tcltklib 
   13 や README.ActiveTcl を見てください．
   14 たとえ Ruby のライブラリディレクトリに tcltklib.so が存在していたとして
   15 も，実行環境に Tcl/Tk ライブラリ (libtcl8.4.so など) がなければ機能しま
   16 せん．Tcl/Tk が正しくインストールされているかもチェックしてください．
   17 
   18 ==========================================================
   19                 Hidetoshi NAGAI (nagai@ai.kyutech.ac.jp)