[Haskell-cafe] 64-bit #const with hsc2hs?

Does anyone know if I can bring a 64-bit (long long or unsigned long long) value from C-land into Haskell via hsc2hs? #const on such a value seems to provide only the low 32 bits, at least in my environment (Haskell Platform 2009.2.0.2 on Windows). I've tried to create a 64-bit variant of #const without success. Dean