diff options
Diffstat (limited to 'libraries/base/System/Timeout.hs')
| -rw-r--r-- | libraries/base/System/Timeout.hs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libraries/base/System/Timeout.hs b/libraries/base/System/Timeout.hs index d4ef0932b5..d34082e64f 100644 --- a/libraries/base/System/Timeout.hs +++ b/libraries/base/System/Timeout.hs @@ -18,7 +18,7 @@ module System.Timeout ( timeout ) where -#ifndef mingw32_HOST_OS +#if !defined(mingw32_HOST_OS) import Control.Monad import GHC.Event (getSystemTimerManager, registerTimeout, unregisterTimeout) @@ -80,7 +80,7 @@ timeout :: Int -> IO a -> IO (Maybe a) timeout n f | n < 0 = fmap Just f | n == 0 = return Nothing -#ifndef mingw32_HOST_OS +#if !defined(mingw32_HOST_OS) | rtsSupportsBoundThreads = do -- In the threaded RTS, we use the Timer Manager to delay the -- (fairly expensive) 'forkIO' call until the timeout has expired. |