[jhc] dynamic library support?

[John Meacham]

On Thu, Aug 06, 2009 at 05:22:06PM +1000, Mark Wotton wrote:
> Is there a way to build dynamic libraries in jhc such they're linkable  
> and callable from a C driver?
> I'm hoping to write a bridge between ruby and haskell, and GHC's dynamic 
> lib support seems a bit sketchy currently.

If your interface is constrained to things expressible in the FFI spec,
then you can 'foreign export' whatever functions you like from haskell
then compile the resulting C file into a shared library. I don't have a
specific option that does this automatically, but it should be easy to
do by hand once you see the C file it produces. Let me know what issues
you run into, if we can come up with a generally useful 'recipe' for
creating shared libraries from haskell I'd like to add it as an explicit
command line option to jhc.

        John

-- 
John Meacham - ⑆repetae.net⑆john⑈ - http://notanumber.net/