[Haskell-cafe] Fwd: [GHC] #939: Possible bug building wxhaskell

Jason Dagit dagit at codersbase.com
Fri Oct 13 20:29:45 EDT 2006

I reported the following bug and received the response below.  Any
wxhaskell hackers up to the challenge?  I'd really love to see the
makefiles go away and see wxhaskell just use cabal but I don't know if
that's possible given the wxhaskell build requirements.

Any help is much appreciated.


---------- Forwarded message ----------
From: GHC <trac at galois.com>
Date: Oct 13, 2006 5:21 PM
Subject: Re: [GHC] #939: Possible bug building wxhaskell
To: dagit at codersbase.com

#939: Possible bug building wxhaskell
    Reporter:  dagit at codersbase.com  |        Owner:
        Type:  bug                   |       Status:  closed
    Priority:  normal                |    Milestone:
   Component:  Compiler              |      Version:  6.6
    Severity:  normal                |   Resolution:  invalid
    Keywords:                        |   Difficulty:  Unknown
Architecture:  x86                   |           Os:  Unknown
Changes (by duncan):

  * resolution:  => invalid
  * status:  new => closed


 It's not a GHC bug. It's a problem with the way wxHaskell is built.
 Admitidedly this is due to a slight change in the way GHC manages packages
 but it's not a bug as such, wxHaskell just needs fixing.

 What needs to happen is that the packages must be registered locally
 before they get used in other packages. Also, instead of importing the
 modules from the other package directly from the directory with -i foo/,
 it must be via -package foo.

 So you'll need to get in contact with someone who knows enough about
 wxHaskell's build system to fix it. Try asking on the ghc-users or
 haskell-cafe mailing lists.

The bug report:
I appologize if this isn't a GHC bug but since it started happening after
 a GHC upgrade I suspect it's a GHC bug.

 After upgrading to ghc6.6 on windows (using the release binary) I tried to
 install the current wxhaskell release found here:
 (version wxhaskell-src-0.9.4-1.zip)

 I have used wxhaskell on this machine before with older version of ghc
 (including ghc6.5, specifically visual haskell) so my environment for
 building the wxhaskell source was already setup.  When I first got the
 error below I thought maybe my version of wxhaskell was messed up so I
 redownloaded the above zip file and unzipped a fresh copy.

 I unziped the source then I typed:
 configure && make

 Things went along fairly smoothly for a while then suddenly I got this
 error message:
 ghc -c wx/src/Graphics/UI/WX/Types.hs -o
 out/wx/imports/Graphics/UI/WX/Types.o -iout/wx/imports -odir
 out/wx/imports -hidir out/wx/imports  -fvia-C -package-name wx

    Bad interface file: out/wx/imports/Graphics/UI/WXCore/Types.hi
        Something is amiss; requested module  wx:Graphics.UI.WXCore.Types
 differs from name found in the interface file
 make: *** [out/wx/imports/Graphics/UI/WX/Types.o] Error 1

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