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[ghc-hetmet.git] / compiler / utils / FastString.lhs

diff --git a/compiler/utils/FastString.lhs b/compiler/utils/FastString.lhs
index ac79b5b..7d43dc1 100644 (file)
--- a/compiler/utils/FastString.lhs
+++ b/compiler/utils/FastString.lhs
@@ -2,6 +2,14 @@
 % (c) The University of Glasgow, 1997-2006
 %
 \begin{code}
+{-# OPTIONS -fno-warn-unused-imports #-}
+-- XXX GHC 6.9 seems to be confused by unpackCString# being used only in
+--     a RULE
+
+{-# OPTIONS_GHC -O -funbox-strict-fields #-}
+-- We always optimise this, otherwise performance of a non-optimised
+-- compiler is severely affected
+
 {-
 FastString:     A compact, hash-consed, representation of character strings.
                 Comparison is O(1), and you can get a Unique from them.