Heat oven to 350. Mix shortening & sugar. Stir flour into shortening mixture. Press & flatten with hand to cover bottom of ungreased oblong pan. Bake 15 minutes. Blend fruit, sugar & water in saucepan. Cook over low heat, stirring constantly, until thickened, 10 minutes. Cool both crust & filling. Spread filling over crust; spread topping over filling. Chill before cutting in 1" squares. Store in refrigerator.