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Bad error message for FFI declaration with no -fffi flag

If I compile:

module Ccall where

import Foreign.C.Types

foreign import ccall "stdio.h putchar"
    putchar :: CInt -> IO CInt

I get:

$ ghc-6.8.1 -c -fext-core Ccall.hs  -no-recomp

Ccall.hs:5:8: parse error on input `import'

A better error message would be to suggest passing the -fffi flag.

Trac metadata
Trac field Value
Version 6.8.1
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (Parser)
Test case
Differential revisions
BlockedBy
Related
Blocking
CC
Operating system Unknown
Architecture Unknown
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