wxruby development - Sep 2008 - Init_wxruby2 issue when called twice in the same program

Hello,

i ran into the following issue while trying to setup my C++ wxWidgets program
for embedded ruby code.

reproduce: add the following to a button event handler of a running wxWidgets
application linked to wxruby2.so:

   ====================    extern "C" void Init_wxruby2();

    ...
    ruby_init();

    ruby_init_loadpath();
    rb_eval_string(" $: << ''src'' ");
    ruby_script("embed");

    Init_wxruby2();
    
    ruby_finalize();
    ...
   ====================
now click the button twice. a segmentation fault should occur, at least it does
on my machine (Ubuntu 8.04, ruby 1.8.7 (2008-08-02 revision 0), wxWidgets 2.8.7,
wxRuby 1.9.8 SVN yesterday).

i figured out that the line
 
  rb_define_const(mWxruby2, "VERSION_STRING", 
                  SWIG_FromCharPtr("wxRuby2"));

at the end of the Init_wxruby2 causes the error, so i wrapped it into a
rb_protect and got the following error:

   class: SystemStackError
   message: stack level too deep
   backtrace: 
	from embed:0:in `write''

this error occurs every time a global constant is re-defined (even if the
interpreter has been restarted in the meanwhile). Unfortunately i can''t
test if this problem occurs in a newer version of ruby. maybe someone could test
just the following code in a standard c file?

  #include "ruby.h"

  void main()
  {
    for (int i = 0; i++; i <= 1) {
      ruby_init();

      ruby_init_loadpath();
      ruby_script("embed");
    
      rb_define_global_const("TEST", Qnil);

      ruby_finalize();
    }
  }

is there a better way to shut down the interpreter apart from ruby_finalize?

Greetings,
Niklas
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