'( ;; mit-scheme-foreign-c constants
  ( ;; enum member values
   )
  ( ;; struct values
   ((sizeof char) . 1)
   ((sizeof uchar) . 1)
   ((sizeof short) . 2)
   ((sizeof ushort) . 2)
   ((sizeof int) . 4)
   ((sizeof uint) . 4)
   ((sizeof long) . 8)
   ((sizeof ulong) . 8)
   ((sizeof float) . 4)
   ((sizeof double) . 8)
   ((sizeof *) . 8)
   ))