IO exception rework

ghc 7.4 comaplains about use of System.IO.Error to catch exceptions.
Ok, use Control.Exception, with variants specialized to only catch IO
exceptions.

1 files changed, 1 insertions, 0 deletions

diff --git a/Common.hs b/Common.hs
index fb998214b..cc6cf9252 100644
--- a/Common.hs
+++ b/Common.hs
@@ -21,6 +21,7 @@ import System.Posix.Process as X hiding (executeFile)
 import System.Exit as X
 
 import Utility.Misc as X
+import Utility.Exception as X
 import Utility.SafeCommand as X
 import Utility.Path as X
 import Utility.Directory as X