Hugs ffi, sizeOf operator

I ran into a possible problem while testing some ffi code. This is with hugs compiled for cygwin or with the windows (msi) version. Hugs says: sizeOf x::CDouble is 4, wheras 'C' says sizeof(double) is 8. I ~~think~~ I see what the problem is with sizeOf. I am using the new hierarchical libs, and it defines sizeOf by hardcoding the sizes rather then asking 'c' like the previous versions did. And sizeOf Double is coded as 4 in libraries\Foreign\Storable.hs Is there something simple I just don't understand? As a side note, is alignPtr implemented somewhere? (Alastair, I already sent this to you, but didnt sent to the list.) Gratefully, Ron