function retval = testme ()

  disp ("Entering m-file testme.m");

  if (! exist ("testme.mex", "file"))
    mex ("-v", "testme.cpp", "-output", "testme.mex");
  endif

  which ("testme")
  rehash
  which ("testme")
  disp ("Calling testme() from within m-file testme.m");
  testme (); 

  disp ("Leaving m-file testme.m");

endfunction
