[commit: nofib] master: Make n-queens benchmark compatible with older GHCs (9701fb0)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/nofib

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/9701fb0ea75b1bd167a94d61d29cb2c47b1080f1/nofib

>---------------------------------------------------------------

commit 9701fb0ea75b1bd167a94d61d29cb2c47b1080f1
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Thu Aug 29 23:03:53 2013 +0200

    Make n-queens benchmark compatible with older GHCs
    
    The change in 957b959dbeb14c3b2d10998d67310e880c01a7dd
    caused n-queens to break with older versions of `base`
    which still have `Foreign.unsafePerformIO` in place.


>---------------------------------------------------------------

9701fb0ea75b1bd167a94d61d29cb2c47b1080f1
 shootout/n-body/Main.hs |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/shootout/n-body/Main.hs b/shootout/n-body/Main.hs
index 857a2cb..7394e4f 100644
--- a/shootout/n-body/Main.hs
+++ b/shootout/n-body/Main.hs
@@ -11,13 +11,13 @@
 -- Don't enable -optc-mfpmath=sse -optc-msse2, this triggers a gcc bug on x86
 --
 
-import Foreign
+import Foreign (Ptr, Storable(..), plusPtr, mallocBytes)
 import Foreign.Storable
 import Foreign.Marshal.Alloc
 import Data.IORef
 import Control.Monad
 import System.Environment
-import System.IO.Unsafe
+import System.IO.Unsafe (unsafePerformIO)
 import Text.Printf
 
 main = do