X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FEnvironment.hs;h=4c62fca6911a5a66e17427a987eeb4b10b189e89;hb=f00fe3e6cb628f3bfac049275660f0365daa3733;hp=19bccf35453b7ae01fbcdf97292685251d03a6e0;hpb=13773706eb9d3eed2d3aba8154aa1d4fdac9fb0b;p=ghc-base.git

diff --git a/System/Environment.hs b/System/Environment.hs
index 19bccf3..4c62fca 100644
--- a/System/Environment.hs
+++ b/System/Environment.hs
@@ -128,6 +128,7 @@ foreign import ccall unsafe "getenv"
 @withArgs args act@ - while executing action @act@, have 'System.getArgs'
 return @args@ (GHC only).
 -}
+withArgs :: [String] -> IO a -> IO a
 withArgs xs act = do
    p <- System.Environment.getProgName
    withArgv (p:xs) act
@@ -136,6 +137,7 @@ withArgs xs act = do
 @withProgName name act@ - while executing action @act@,
 have 'System.getProgName' return @name@ (GHC only).
 -}
+withProgName :: String -> IO a -> IO a
 withProgName nm act = do
    xs <- System.Environment.getArgs
    withArgv (nm:xs) act
@@ -143,6 +145,7 @@ withProgName nm act = do
 -- Worker routine which marshals and replaces an argv vector for
 -- the duration of an action.
 
+withArgv :: [String] -> IO a -> IO a
 withArgv new_args act = do
   pName <- System.Environment.getProgName
   existing_args <- System.Environment.getArgs