(OS X) Can't link MonadCont, but ghci works
The following test case prints [0,1,2] with ghci-6.4 on
OS X, but ghc can't link it. The error is
$ ghc-6.4 -o y yield-cont-fails.hs
ld: Undefined symbols:
_ControlziMonadziCont_zdfMonadCont_closure
___stginit_ControlziMonadziCont_
The test case:
import Control.Monad.Cont
yield :: a -> Cont [a] ()
yield x = Cont (\c -> x : c ())
asGenerator :: Cont [a] v -> [a]
asGenerator (Cont f) = f (const [])
test = asGenerator (yield 0 >> yield 1 >> yield 2)
main = do print test
I have also attached it as a file to this bug. I do
not have other versions of ghc installed. I installed
GHC from
http://www.haskell.org/ghc/dist/6.4/MacOSX/GHC-6.4.pkg.zip
Trac metadata
| Trac field | Value |
|---|---|
| Version | 6.4 |
| Type | Bug |
| TypeOfFailure | OtherFailure |
| Priority | normal |
| Resolution | ResolvedInvalid |
| Component | Compiler |
| Test case | |
| Differential revisions | |
| BlockedBy | |
| Related | |
| Blocking | |
| CC | |
| Operating system | |
| Architecture |