[Haskell-cafe] Re: Re: HS-Plugins 1.0 chokes on simple test, WinXP GHC-6.6 (Conal Elliott)

Bayley, Alistair Alistair_Bayley at invescoperpetual.co.uk
Mon Mar 19 05:30:41 EDT 2007

> [mailto:haskell-cafe-bounces at haskell.org] On Behalf Of Vivian McPhail
> I just setup and installed hs-plugins from darcs on WinXP 
> using ghc-6.6 and
> The hs-plugin test suite all passes.
> Can you send me something that generates your error and I'll 
> have a look at
> it.
> Vivian

Well, if I haven't misunderstood what you're asking for, there is the
original test case at the root of this mail thread (copied below). This
produces the same error message that Conal gets:

c:/ghc/ghc-6.6/HSbase.o: unknown symbol `_free'
Main: user error (Dynamic loader returned: user error (resolvedObjs



module Test1 where
test1 = putStrLn "test1"

module Main where
import Prelude hiding (catch)
import Control.Exception
import Data.List
import System.Environment
import System.Plugins

instance Show (LoadStatus a) where
  show (LoadFailure errors) = "LoadFailure - " ++ (concat (intersperse
"\n" errors))
  show (LoadSuccess m p) = "LoadSuccess"

main = do
  a <- getArgs
    modName = case a of
      (n:_) -> n
      _ -> "Test1"
  let modPath = "./" ++ modName ++ ".o"
  let method = "test1"
  fc <- catch (load modPath [""] [] method)
    (\e -> return (LoadFailure
      ["Dynamic loader returned: " ++ show e]))
  case fc of
    LoadFailure errors -> do
      fail (concat (intersperse "\n" errors))
    LoadSuccess modul proc -> do
      let p :: IO (); p = proc
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