Re: [Haskell-cafe] hflags

On 06/02/15 06:26, Maurizio Vitale wrote:

with ghc 7.8.4 and hflags 0.4 the following program:

{-# LANGUAGE TemplateHaskell #-}

module Main where

import HFlags

defineFlag "f" True "A flag." --defineFlag "g" True "Another flag."

return [] -- see http://hackage.haskell.org/package/QuickCheck-2.7.6/docs/Test-QuickCheck-All... - I haven't tested with hflags but it looks like the same issue from first glance

main = do _ <- $initHFlags "flags demo" print Main.flags_f

gives me a runtime error about the flag f not being found, unless I add the declaration of a second flag. It seems like the last flag definition is not seen.

Any idea/suggestion?

Thanks,

Maurizio

Claude -- http://mathr.co.uk