Probably just what it says -- plugins is calling ghc and passing the -fglasgow-exts flag. I would try just removing that flag. - jeremy On Tue, Sep 17, 2013 at 2:08 AM, Petr Pudlák wrote:

Any ideas what could be causing the problem? I could try creating a patch, but I have no clue where to start.

Best regards, Petr

Dne 09/16/2013 11:12 PM, Jeremy Shaw napsal(a):

plugins probably needs to be patched[1]. I'll happily apply such a patch.

- jeremy [1] or rewritten from the ground up

On Mon, Sep 16, 2013 at 2:49 AM, Petr Pudlák wrote:

...

Hi,

I'm playing with “plugins”, trying to evaluate a simple expression:

import Control.Monadimport System.Eval.Haskell main = do let fExpr = "1 + 2 :: Int" r <- eval_ fExpr ["Prelude"] [] [] [] :: IO (Either [String] (Maybe Int)) case r of Right (Just f) -> do print $ f Left err -> putStrLn $ "Error: " ++ unlines err _ -> putStrLn $ "Unknown error."

However, it fails with

Error: on the commandline: Warning: -fglasgow-exts is deprecated: Use individual extensions instead

Am I doing something wrong? How can I turn off the flag?

I'm using GHC 7.6.3.

Thanks, Petr

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