On Sun, 2005-04-24 at 18:38 -0300, Pupeno wrote: > Hello, > I've had troubles in the FFI module I'm building when dealing with > (unsigned) > longs, what happens is that the second unsigned long argument never > reached > the function I'm calling with ffi_call. Which version of GCC/libffi and what platform are you on? Please file a bug report at http://gcc.gnu.org/bugzilla with this information and I'll look at it as soon as I have a chance. Thanks, AG