rb_define_method (cEdje, "freeze", c_freeze, 0);
rb_define_method (cEdje, "thaw", c_thaw, 0);
rb_define_method (cEdje, "load", c_load, 2);
rb_define_method (cEdje, "freeze", c_freeze, 0);
rb_define_method (cEdje, "thaw", c_thaw, 0);
rb_define_method (cEdje, "load", c_load, 2);