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.html#v:quickCheckAll - 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

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