From 2403c20413859745911132c4b10868eac4eeb627 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Tue, 26 Oct 1999 08:41:54 +0000
Subject: [PATCH] [project @ 1999-10-26 08:41:54 by sof] Foreign imports that
 use ByteArrays now need to be marked as being 'unsafe.'

---
 ghc/lib/misc/Readline.lhs |   16 +++++++---------
 ghc/lib/misc/Select.lhs   |   11 +++++------
 2 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/ghc/lib/misc/Readline.lhs b/ghc/lib/misc/Readline.lhs
index 968412f..ba5ec63 100644
--- a/ghc/lib/misc/Readline.lhs
+++ b/ghc/lib/misc/Readline.lhs
@@ -47,7 +47,7 @@ import ByteArray(ByteArray)
 import Char(ord, chr)
 import CString(packString, unpackCStringIO)
 import IO(Handle)
-import IOExts(IORef, newIORef, readIORef, writeIORef, unsafePerformIO)
+import IOExts(IORef, newIORef, readIORef, writeIORef, unsafePerformIO, freeHaskellFunctionPtr)
 import Maybe(fromMaybe)
 import Monad(when)
 import Posix(intToFd, fdToHandle)
@@ -75,8 +75,8 @@ type RlCallbackFunction =
 rlInitialize :: IO ()
 rlInitialize = rlSetReadlineName =<< getProgName
 
-foreign import ccall "free"     free        :: Addr -> IO ()
-foreign import ccall "readline" readlineAux :: ByteArray Int -> IO Addr
+foreign import "free"     unsafe free        :: Addr -> IO ()
+foreign import "readline" unsafe readlineAux :: ByteArray Int -> IO Addr
 
 readline :: String		-- Prompt String
 	 -> IO (Maybe String)	-- Just returned line or Nothing if EOF
@@ -88,15 +88,15 @@ readline prompt =  do
               free cstr
               return (Just str)
 
-foreign import ccall "add_history" add_history :: ByteArray Int -> IO ()
+foreign import "add_history" unsafe add_history :: ByteArray Int -> IO ()
 
 addHistory :: String		-- String to enter in history
            -> IO ()
 addHistory = add_history . packString
 
 
-foreign export ccall dynamic mkRlCallback :: (Int -> Int -> IO Int) -> IO Addr
-foreign import ccall "rl_bind_key" rl_bind_key :: Int -> Addr -> IO Int
+foreign export dynamic mkRlCallback :: (Int -> Int -> IO Int) -> IO Addr
+foreign import "rl_bind_key" rl_bind_key :: Int -> Addr -> IO Int
 
 rlBindKey :: KeyCode		    -- Key to Bind to
 	  -> RlCallbackFunction	    -- Function to exec on execution
@@ -106,7 +106,7 @@ rlBindKey key cback = do
    ok     <- rl_bind_key (ord key) cbAddr
    if ok /= 0 then wrongKeyCode else addCbackEntry key cbAddr
 
-foreign import ccall "rl_add_defun" rl_add_defun :: ByteArray Int -> Addr -> Int -> IO Int
+foreign import "rl_add_defun" unsafe rl_add_defun :: ByteArray Int -> Addr -> Int -> IO Int
 
 rlAddDefun :: String ->			-- Function Name
 	      RlCallbackFunction ->	-- Function to call
@@ -126,8 +126,6 @@ wrongKeyCode = ioError (userError "Invalid ASCII Key Code, must be in range 0..2
 theCbackTable :: IORef [(KeyCode,Addr)]
 theCbackTable = unsafePerformIO (newIORef [])
 
-foreign import ccall "freeHaskellFunctionPtr" freeHaskellFunctionPtr :: Addr -> IO ()
-
 addCbackEntry :: KeyCode -> Addr -> IO ()
 addCbackEntry key cbAddr = do
    cbackTable <- readIORef theCbackTable
diff --git a/ghc/lib/misc/Select.lhs b/ghc/lib/misc/Select.lhs
index 4fdf3ac..c4697bf 100644
--- a/ghc/lib/misc/Select.lhs
+++ b/ghc/lib/misc/Select.lhs
@@ -26,7 +26,6 @@ import Monad
 import Maybe
 import PrelIOBase
 import PosixUtil (fdToInt)
-
 \end{code}
 
 This stuff should really be done using HDirect.
@@ -75,7 +74,7 @@ getFd h = do
   f <- handleToFd h
   return (f,h)
 
-foreign import "selectFrom__" 
+foreign import "selectFrom__" unsafe
 		selectFrom__ :: ByteArray Int
 			     -> ByteArray Int
 			     -> ByteArray Int
@@ -113,16 +112,16 @@ marshallFDs ls = do
   ba <- stToIO (unsafeFreezeByteArray ba)
   return (x, ba)
 
-foreign import "is_fd_set__"
+foreign import "is_fd_set__" unsafe
 	       is_fd_set :: ByteArray Int -> Int -> IO Int
 
-foreign import "fd_zero__"
+foreign import "fd_zero__" unsafe
 	       fd_zero :: MutableByteArray RealWorld Int -> IO ()
 
-foreign import "fd_set__"
+foreign import "fd_set__" unsafe
 	       fd_set :: MutableByteArray RealWorld Int -> Int -> IO ()
 
-foreign import "sizeof_fd_set__"
+foreign import "sizeof_fd_set__" unsafe
 	       sizeof_fd_set :: Int
 
 \end{code}
-- 
1.7.10.4