X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=System%2FProcess%2FInternals.hs;h=eb16d368bb82ecaaa97c54bf31ca270e27853c65;hb=24b2eda5dc27cc9351734e86635f8bcc6f95cc16;hp=09aa376b46d58b540f850992ad150ee4608e8349;hpb=5b99f2cf15cb6f9604abe884eafe293ae0c60cf0;p=ghc-base.git

diff --git a/System/Process/Internals.hs b/System/Process/Internals.hs
index 09aa376..eb16d36 100644
--- a/System/Process/Internals.hs
+++ b/System/Process/Internals.hs
@@ -15,7 +15,7 @@
 
 -- #hide
 module System.Process.Internals (
-	ProcessHandle(..), PHANDLE,
+	ProcessHandle(..), PHANDLE, pPrPr_disableITimers, c_execvpe
   ) where
 
 #if !defined(mingw32_TARGET_OS) && !defined(__MINGW32__)
@@ -23,6 +23,13 @@ import System.Posix.Types ( CPid )
 #else
 import Data.Word ( Word32 )
 #endif
+import Foreign.C.String ( CString )
+import Foreign.C.Types ( CInt )
+import Foreign.Ptr ( Ptr )
+
+#ifdef __HUGS__
+{-# CBITS execvpe.c  #-}
+#endif
 
 -- ----------------------------------------------------------------------------
 -- ProcessHandle type
@@ -41,3 +48,13 @@ type PHANDLE = Word32
 #endif
 
 newtype ProcessHandle = ProcessHandle PHANDLE
+
+-- ----------------------------------------------------------------------------
+
+-- this function disables the itimer, which would otherwise cause confusing
+-- signals to be sent to the new process.
+foreign import ccall unsafe "pPrPr_disableITimers"
+  pPrPr_disableITimers :: IO ()
+
+foreign import ccall unsafe "execvpe"
+  c_execvpe :: CString -> Ptr CString -> Ptr CString -> IO CInt