[project @ 2004-12-14 12:52:03 by simonmar]

[ghc-base.git] / Control / Concurrent / QSemN.hs

diff --git a/Control/Concurrent/QSemN.hs b/Control/Concurrent/QSemN.hs
index d8d6f49..56c5e50 100644 (file)
--- a/Control/Concurrent/QSemN.hs
+++ b/Control/Concurrent/QSemN.hs
@@ -24,11 +24,16 @@ module Control.Concurrent.QSemN
 import Prelude
 
 import Control.Concurrent.MVar
+import Data.Typeable
+
+#include "Typeable.h"
 
 -- |A 'QSemN' is a quantity semaphore, in which the available
 -- \"quantity\" may be signalled or waited for in arbitrary amounts.
 newtype QSemN = QSemN (MVar (Int,[(Int,MVar ())]))
 
+INSTANCE_TYPEABLE0(QSemN,qSemNTc,"QSemN")
+
 -- |Build a new 'QSemN' with a supplied initial quantity.
 newQSemN :: Int -> IO QSemN 
 newQSemN init = do