Use Control.Exception.catch explitly to avoid warnings

Ignore-this: 2cebdfe604c581f2b4a644e9aed726c7

The base that comes with ghc-7.6.1 no longer includes Prelude.catch;
so these modules were changed so that there is no warning for

import Prelude hiding (catch)

At the same time these changes should be compatible with older GHCs,
since the catch being has never been the one in the Prelude.

darcs-hash:20121109013506-1499c-c593662b0780eb49287efcbfe0e9796f7dd57c73.gz

4 files changed, 9 insertions, 14 deletions

diff --git a/XMonad/Prompt/DirExec.hs b/XMonad/Prompt/DirExec.hs
index ddcc8c5..ef37a9a 100644
--- a/XMonad/Prompt/DirExec.hs
+++ b/XMonad/Prompt/DirExec.hs
@@ -24,8 +24,7 @@ module XMonad.Prompt.DirExec
     , DirExec
     ) where
 
-import Prelude hiding (catch)
-import Control.Exception
+import Control.Exception as E
 import System.Directory
 import Control.Monad
 import Data.List
@@ -104,4 +103,4 @@ getDirectoryExecutables path =
             liftM2 (&&)
                 (doesFileExist x')
                 (liftM executable (getPermissions x'))))
-    `catch` econst []
+    `E.catch` econst []
diff --git a/XMonad/Prompt/RunOrRaise.hs b/XMonad/Prompt/RunOrRaise.hs
index 8fb5c43..ce93de9 100644
--- a/XMonad/Prompt/RunOrRaise.hs
+++ b/XMonad/Prompt/RunOrRaise.hs
@@ -26,8 +26,7 @@ import XMonad.Prompt.Shell
 import XMonad.Actions.WindowGo (runOrRaise)
 import XMonad.Util.Run (runProcessWithInput)
 
-import Prelude hiding (catch)
-import Control.Exception
+import Control.Exception as E
 import Control.Monad (liftM, liftM2)
 import System.Directory (doesDirectoryExist, doesFileExist, executable, getPermissions)
 
@@ -71,7 +70,7 @@ isApp "thunderbird" = className =? "Thunderbird-bin" <||> className =? "Thunderb
 isApp x = liftM2 (==) pid $ pidof x
 
 pidof :: String -> Query Int
-pidof x = io $ (runProcessWithInput "pidof" [x] [] >>= readIO) `catch` econst 0
+pidof x = io $ (runProcessWithInput "pidof" [x] [] >>= readIO) `E.catch` econst 0
 
 pid :: Query Int
 pid = ask >>= (\w -> liftX $ withDisplay $ \d -> getPID d w)
diff --git a/XMonad/Prompt/Shell.hs b/XMonad/Prompt/Shell.hs
index c391ca3..05ee5f4 100644
--- a/XMonad/Prompt/Shell.hs
+++ b/XMonad/Prompt/Shell.hs
@@ -30,10 +30,9 @@ module XMonad.Prompt.Shell
     ) where
 
 import           Codec.Binary.UTF8.String (encodeString)
-import           Control.Exception
+import           Control.Exception        as E
 import           Control.Monad            (forM)
 import           Data.List                (isPrefixOf)
-import           Prelude                  hiding (catch)
 import           System.Directory         (doesDirectoryExist, getDirectoryContents)
 import           System.Environment       (getEnv)
 import           System.Posix.Files       (getFileStatus, isDirectory)
@@ -111,7 +110,7 @@ commandCompletionFunction cmds str | '/' `elem` str = []
 
 getCommands :: IO [String]
 getCommands = do
-    p  <- getEnv "PATH" `catch` econst []
+    p  <- getEnv "PATH" `E.catch` econst []
     let ds = filter (/= "") $ split ':' p
     es <- forM ds $ \d -> do
         exists <- doesDirectoryExist d
@@ -142,7 +141,7 @@ isSpecialChar =  flip elem " &\\@\"'#?$*()[]{};"
 --   In order to /set/ an environment variable (eg. combine with a prompt so you can modify @$HTTP_PROXY@ dynamically),
 --   you need to use 'System.Posix.putEnv'.
 env :: String -> String -> IO String
-env variable fallthrough = getEnv variable `catch` econst fallthrough
+env variable fallthrough = getEnv variable `E.catch` econst fallthrough
 
 {- | Ask the shell what browser the user likes. If the user hasn't defined any
    $BROWSER, defaults to returning \"firefox\", since that seems to be the most
diff --git a/XMonad/Prompt/Ssh.hs b/XMonad/Prompt/Ssh.hs
index c3a035d..e9e7ec8 100644
--- a/XMonad/Prompt/Ssh.hs
+++ b/XMonad/Prompt/Ssh.hs
@@ -19,15 +19,13 @@ module XMonad.Prompt.Ssh
       Ssh,
     ) where
 
-import Prelude hiding (catch)
-
 import XMonad
 import XMonad.Util.Run
 import XMonad.Prompt
 
 import System.Directory
 import System.Environment
-import Control.Exception
+import Control.Exception as E
 
 import Control.Monad
 import Data.Maybe
@@ -78,7 +76,7 @@ sshComplListLocal = do
 
 sshComplListGlobal :: IO [String]
 sshComplListGlobal = do
-  env <- getEnv "SSH_KNOWN_HOSTS" `catch` econst "/nonexistent"
+  env <- getEnv "SSH_KNOWN_HOSTS" `E.catch` econst "/nonexistent"
   fs <- mapM fileExists [ env
                         , "/usr/local/etc/ssh/ssh_known_hosts"
                         , "/usr/local/etc/ssh_known_hosts"