patch applied (packages/unix): run fdReadBuf only the threaded ways (fixed unregisterised failure)

[Simon Marlow]

Thu Oct  8 04:01:26 PDT 2009  Simon Marlow <marlowsd at gmail.com>
  * run fdReadBuf only the threaded ways (fixed unregisterised failure)
  Ignore-this: 7893c3ab18b25aa3c67b71633a1e7d35

    M ./tests/all.T -1 +6

View patch online:
http://darcs.haskell.org/packages/unix/_darcs/patches/20091008110126-12142-b7d7ef2aae0a32a72dd84560026d6f6762c7b1ee.gz