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157

answers:

2

I'm going through Real world Haskell, and got to the example:

-- file: ch04/InteractWith.hs
-- Save this in a source file, e.g. Interact.hs

import System.Environment (getArgs)

interactWith function inputFile outputFile = do
  input <- readFile inputFile
  writeFile outputFile (function input)

main = mainWith myFunction
  where mainWith function = do
          args <- getArgs
          case args of
            [input,output] -> interactWith function input output
            _ -> putStrLn "error: exactly two arguments needed"

        -- replace "id" with the name of our function below
        myFunction = id

But when I try to compile it (ghc --make InteractWith) I get this error:

$ ghc --make InteractWith
[1 of 1] Compiling Main             ( InteractWith.hs, InteractWith.o )

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:309:0:
    suffix or operands invalid for `push'

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:358:0:
    suffix or operands invalid for `push'

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:384:0:
    32-bit absolute addressing is not supported for x86-64

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:384:0:
    cannot do signed 4 byte relocation

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:387:0:
    32-bit absolute addressing is not supported for x86-64

/var/folders/38/38dlZO7fEXyCgGIFUZA0Ok+++TI/-Tmp-/ghc91310_0/ghc91310_0.s:387:0:
    cannot do signed 4 byte relocation

I'm using GHC 6.10.4 on Mac OS 10.6 (Snow Leopard).

+3  A: 

I was having similar problems compiling almost anything in Snow Leopard. The solution I found was to replace the contents of /usr/bin/ghc (which is actually just a shell script) with the following:

#!/bin/sh

exec /Library/Frameworks/GHC.framework/Versions/610/usr/lib/ghc-6.10.4/ghc -B/Library/Frameworks/GHC.framework/Versions/610/usr/lib/ghc-6.10.4/. -optc-m32 -opta-m32 -optl-m32 -dynload wrapped ${1+"$@"}

I think it's actually just adding -optc-m32 -opta-m32 -optl-m32 but I can't remember...

(I originally found this somewhere on the internets, but I don't remember where. It did take me a while too.)

Jon
That appears to have fixed my problem. Thanks a lot :)
Jeffrey Aylesworth
A: 

Did you update to Snow Leopard recently? I believe this happens when you're trying to use an executable in Snow Leopard that was built using Leopard.

Martijn