> > Going via C is fine, as long as you -#include the relevant
> prototype for the
> > C function you're calling. Otherwise the C compiler
> automatically promotes
> > the arguments/result to doubles and you're hosed.
> >
> > There's been a great deal of discussion on the FFI list (as
> I'm sure you've
> > seen) about how to do this properly. We can't just
> generate a prototype
> > inline
>
> Ah, yes, I'd completely forgotten about that issue. But how do I
> #include a C header into a Haskell source file? (Doubtless there
> is a ghc extension to help.) And, even easier, can I #include the
> actual C source directly?
The -#include flag is for including headers in the generated C code, it just
injects the appropriate #include directive somewhere near the top of the
file.
Cheers,
Simon
