On Wed, Jul 6, 2011 at 12:52 PM, Simon Marlow <marlowsd@gmail.com> wrote:

I think the real issue is that GHC has a different behavior than GHCi,
and I think this causes a lot of difficulties for people working on GUI
and other FFI integration.

Well, GHCi has no main, so it doesn't seem surprising (to me) that it's different.

If we start GHCi then run the function called 'main', we should ideally get the same behavior as building with GHC then executing the process. Variations make exploratory programming with GHCi very difficult, especially with concurrent haskell.

However, if -fno-ghci-sandbox doesn't have any drawbacks we could just make it the default.

That sounds good, too. I think it worth looking up what the drawbacks will be. It might be an acceptable trade even if there are minor drawbacks. I would imagine the main benefit of the sandbox is ability to interrupt a task - i.e. job control from the GHCi shell.

Regards,

Dave