ghci doesn't work with FFI export declarations?

.gitignore

*.hi
*_stub.*
ffiso

README

http://stackoverflow.com/questions/10123040/ghci-doesnt-work-with-ffi-export-declarations-shared-libaries

c.c

#include <stdio.h>

void callMeFromC(void);

void callMeFromHaskell(void)
{
	printf("callMeFromHaskell\n");
	callMeFromC();
}

FFISo.hs

{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ForeignFunctionInterface #-}
module Main where

import qualified Data.ByteString.Char8 as B

foreign import ccall "callMeFromHaskell"
  callMeFromHaskell :: IO ()

foreign export ccall callMeFromC :: IO ()
callMeFromC :: IO ()
callMeFromC = B.putStrLn "callMeFromC"

main :: IO ()
main = do
  B.putStrLn "main"
  callMeFromHaskell
  return ()

Makefile

GHC_OPT := -Wall -O2 -fno-warn-unused-do-bind

all: ffiso

test: ffiso
	./$<

ffiso: FFISo.hs c.c
	ghc --make $(GHC_OPT) $^ -o $@

clean:
	rm -rf *.hi *.o ffiso *_stub.*

ghci0: ffiso
	echo main | ghci FFISo.hs

ghci1: ffiso
	echo main | ghci FFISo.hs c.o

ghci2: ffiso
	echo main | ghci FFISo.hs c.o FFISo.o

Unfortunately only with -fobject-code which also disables debugging.