Installation for Ruby-VTK

1. Unpack source file
To unpack source file, type
   %gzip -dc ruby-vtk-version.tar.gz | tar xvf -
or
   %tar zxvf ruby-vtk-version.tar.gz

2. Move current directory
Move to source directory
   %cd ruby-vtk-version

3. Compile source code
To setup environment for compiling, type
   %ruby extconf.rb
if VTK headers of libraries are not found, please specify the path
   (e.g. %ruby extconf.rb --with-vtk-include=/usr/include/vtk --with-vtk-lib=/usr/lib/vtk)
To compile, type
   %make
For install, change to root
    %su -
and type
    #make install
