2 files changed, 2 insertions, 1 deletions

diff --git a/lib/Numeric/GSL/Minimization.hs b/lib/Numeric/GSL/Minimization.hs
index 930fe8a..a595da9 100644
--- a/lib/Numeric/GSL/Minimization.hs
+++ b/lib/Numeric/GSL/Minimization.hs
@@ -115,7 +115,7 @@ minimizeD method = minimizeDGen (fi (fromEnum method))
 
 -------------------------------------------------------------------------
 
-
+ww2 w1 o1 w2 o2 f = w1 o1 $ \a1 -> w2 o2 $ \a2 -> f a1 a2
 
 minimizeGen method eps maxit sz f xi = unsafePerformIO $ do
     let xiv = fromList xi
diff --git a/lib/Numeric/GSL/Vector.hs b/lib/Numeric/GSL/Vector.hs
index 92cda87..0366744 100644
--- a/lib/Numeric/GSL/Vector.hs
+++ b/lib/Numeric/GSL/Vector.hs
@@ -21,6 +21,7 @@ module Numeric.GSL.Vector (
 ) where
 
 import Data.Packed.Internal.Common
+import Data.Packed.Internal.Signatures
 import Data.Packed.Internal.Vector
 
 import Complex