Hi Andy,

Andy Wingo <wingo@pobox.com> writes:

> On Mon 25 Feb 2013 01:34, Mark H Weaver <mhw@netris.org> writes:
>
>> The current limitation of 10 arguments to foreign functions is proving
>> to be a problem for some libraries, in particular the Allegro game
>> library.
>>
>> Is there a reason why raising this limit to 16 or 20 would be
>> undesirable?  What tradeoffs are involved?
>
> Each arity of foreign functions gets a little VM program stub that
> checks the argument count then actually does the call.  We statically
> generate the first N of those arities (currently 10), and then for the
> rest we should dynamically allocate the objcode stubs.  Dynamic
> allocation is currently unimplemented.

I've attached a patch that implements dynamic allocation of objcode
stubs for larger arities.  What do you think?

   Thanks,
     Mark