Generating Function Prototypes

[Simon Marlow]

> Of course, this ignores the detail that while the C compilers are
> generating correct code, they may also be generating warnings about
> alleged type errors - which can be a bit disconcerting.

It is an error, not just a warning, if the prototypes don't match.  GCC
will complain loudly if there's a missing 'const' - it won't generate
any code at all.

Cheers,
	Simon