summaryrefslogtreecommitdiff
path: root/compiler/cmm/CmmSpillReload.hs
diff options
context:
space:
mode:
authorIan Lynagh <igloo@earth.li>2011-06-17 18:47:08 +0100
committerIan Lynagh <igloo@earth.li>2011-06-17 18:47:08 +0100
commit7a80e2ddc60c611c744c38659a293d3f429efd20 (patch)
tree105a1438799047e609ad0c5fb8c998152216592d /compiler/cmm/CmmSpillReload.hs
parent97e4bbe1a59b292038f1d9153ba31ef358aa827b (diff)
downloadhaskell-7a80e2ddc60c611c744c38659a293d3f429efd20.tar.gz
Fix the build with GHC 6.12
Diffstat (limited to 'compiler/cmm/CmmSpillReload.hs')
-rw-r--r--compiler/cmm/CmmSpillReload.hs9
1 files changed, 7 insertions, 2 deletions
diff --git a/compiler/cmm/CmmSpillReload.hs b/compiler/cmm/CmmSpillReload.hs
index e3f631da09..031d20075f 100644
--- a/compiler/cmm/CmmSpillReload.hs
+++ b/compiler/cmm/CmmSpillReload.hs
@@ -3,9 +3,14 @@
-- If this module lives on I'd like to get rid of this flag in due course
{-# OPTIONS_GHC -fno-warn-warnings-deprecations #-}
-#if __GLASGOW_HASKELL__ < 701
--- GHC 7.0.1 improved incomplete pattern warnings with GADTs
+
+-- GHC 7.0.1 improved incomplete pattern warnings with GADTs, but for
+-- older compilers we need to turn warn-incomplete-patterns off.
+-- However, older compilers don't support OPTIONS_GHC inside CPP, so
+-- we instead always turn it off, and then conditionally turn it back on.
{-# OPTIONS_GHC -fno-warn-incomplete-patterns #-}
+#if __GLASGOW_HASKELL__ >= 700
+{-# OPTIONS_GHC -fwarn-incomplete-patterns #-}
#endif
module CmmSpillReload