[Haskell-cafe] Unknown symbol `__dso_handle' with Template Haskell and wxHaskell
scooter.phd at gmail.com
Fri Jan 7 06:57:23 CET 2011
It's a side effect of dynamic linking, or, lack of support for it in ghci. You can't work around it. I've tried.
Sent from my iPad
On Dec 27, 2010, at 9:14 PM, Alexander Bau <abau at imn.htwk-leipzig.de> wrote:
>> GHCi and cabal didn't work, but ghc --make did.
> Neither GHCi, cabal nor ghc --make works.
> I refactored my code, so that all TH related stuff does not depend on
> wxHaskell, i.e. wxHaskell doesn't need to be loaded during THs code
> generation. Then ghc --make works fine. But when using cabal, the same
> error occurs.
> It seems to me that TH (when used with cabal) loads all packages
> specified at "Build-Depends" in your cabal file (whether they are needed
> or not). ghc --make instead just loads all packages, that are really
> needed for THs code generation.
> But this is just a workaround and does not explain why TH does not work
> with wxHaskell. I think this is somehow related to the inability to use
> wxHaskell inside of GHCi , because then the same error occurs.
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