Use explicit language extensions & remove extension fields from base.cabal

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

diff --git a/Control/Concurrent/QSem.hs b/Control/Concurrent/QSem.hs
index 59ffbc7..22f6c0c 100644 (file)
--- a/Control/Concurrent/QSem.hs
+++ b/Control/Concurrent/QSem.hs
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Control.Concurrent.QSem
@@ -36,7 +38,7 @@ import Data.Typeable
 
 -- |A 'QSem' is a simple quantity semaphore, in which the available
 -- \"quantity\" is always dealt with in units of one.
-newtype QSem = QSem (MVar (Int, [MVar ()]))
+newtype QSem = QSem (MVar (Int, [MVar ()])) deriving Eq
 
 INSTANCE_TYPEABLE0(QSem,qSemTc,"QSem")