On 7/16/08, Olivier Boudry wrote:

On Tue, Jul 15, 2008 at 11:51 PM, PJ Durai wrote:

...

I am trying to import some functions from a windows DLL. I am getting strange errors. (This used to work with previous versions of GHC. 6.6 I think.).

You may have to create an import library for the DLL. I had a similar problem and solved it that way.

Look at http://www.emmestech.com/moron_guides/moron1.html for advices on how to create such a library.

My problem was that the exports in the dll were prefixed with an underscore. I had to remove them from the .def file before creating the import library.

I do have the import library. It came with the DLL. It links properly when I use CCALL on the haskell import statements. Doesnt link when I use STDCALL. It looks for function name with something like '@4 or @8' tacked on at the end. Not sure what that is all about.

On Wed, Jul 16, 2008 at 6:22 PM, PJ Durai wrote:

I do have the import library. It came with the DLL. It links properly when I use CCALL on the haskell import statements. Doesnt link when I use STDCALL. It looks for function name with something like '@4 or @8' tacked on at the end. Not sure what that is all about.

Is your import library a ".lib" or a ".a" file? If you have a ".lib" import library ghc will ignore it and link directly with the DLL. I think you can convert a ".lib" to a ".a" using the reimp tool which is part of the mingw utilities.