Pretty much what Whiterock stated, either do it yourself or take it to a gunsmith for $40. get a syringe with a good glue and inject what you can into the crack. Put a clamp on it for a day or two and then drill down thru, across the cracked area, tap the drilled hole for a long screw. Install the screw and then take a small dremel tool and grind away the head of the screw so it is flush with the stock. I would use a brass screw if you can get your hands on one. Never anymore problems with the crack spreading and lasts forever.
BB