Hi John. I think the attached patch fix warning messages on compiling jhc. Fixing warning messages is not essential to developing, but I think it's useful to keep clean code. I am so happy, if it's merge to jhc. Github links are below. https://github.com/ajhc/ajhc/commit/f64cb5a883c096c2ffd7ce85e22d3c6ec1494892 https://github.com/ajhc/ajhc/commit/502b91a34e7b4c8841f563c0eb458ccab858d3e5 https://github.com/ajhc/ajhc/commit/90a685b03ea75fa4e2c7a13f00b5c1d22d8232b2 https://github.com/ajhc/ajhc/commit/151af38ece7ccba7e7f5970948c7fbca3c3bea2d https://github.com/ajhc/ajhc/commit/61a96383ad866f599d3950dc1fb7b84a6d7000ca https://github.com/ajhc/ajhc/commit/7409b637f4871d4bda765068c389a8d77c6a2d26 https://github.com/ajhc/ajhc/commit/4acae1778d0960e0bcf5038edc2a7158a0582744 https://github.com/ajhc/ajhc/commit/cbb7aa047150bb98b76abec2f68a3f397853413f https://github.com/ajhc/ajhc/commit/86f4306ce526f2081724f446e0a253fc3eb3d33b https://github.com/ajhc/ajhc/commit/647878e884c106439c12c3d271407002dd4196ec Best regards, -- Kiwamu Okabe