patch applied (packages/unix): forking works in GHCi too

[Simon Marlow]

Wed Nov 11 06:20:55 PST 2009  Simon Marlow <marlowsd at gmail.com>
  * forking works in GHCi too
  Ignore-this: 90ead989e64e3cbffbae15e0c74b5f89
  Or at least, it works well enough to run this test.  The main GHCi
  thread is gone after forking, but the current evaluation continues to
  run.

    M ./tests/all.T -8 +1

View patch online:
http://darcs.haskell.org/packages/unix/_darcs/patches/20091111142055-12142-afb5c2cbe650cf64ceb62130f94c92b44978944d.gz