"Simon Marlow"
We don't have support for shared libraries under Unix at the moment. It has been investigated at various times in the past, and I believe the story is that we couldn't do it without at least losing some performance
Of course, dynamic linking only helps you if you run different programs[0] using the same library. My impression was that normally, Haskell programs link with the run time system and such, and unless you're running a lot of different Haskell programs, the gains aren't very large. OTOH when you start using and reusing larger libraries, like Gtk+, the waste accumulates, and it's possibly you don't need to run too many GTK+HS programs before you see performance decrease due to memory exhaustion. Probably not a big deal in the real world, but it may be occasionally worth it to take a slight performance decrease to avoid swapping. -kzm [0] Multiple instances of the same program share the code segment, of course. -- If I haven't seen further, it is by standing in the footprints of giants