Re: [Haskell-cafe] Linker problems linking FFI import call in Windows
On Wed, Jul 16, 2008 at 6:22 PM, PJ Durai <[EMAIL PROTECTED]> 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. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Linker problems linking FFI import call in Windows
On 7/16/08, Olivier Boudry <[EMAIL PROTECTED]> wrote: > On Tue, Jul 15, 2008 at 11:51 PM, PJ Durai <[EMAIL PROTECTED]> 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. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Linker problems linking FFI import call in Windows
On Tue, Jul 15, 2008 at 11:51 PM, PJ Durai <[EMAIL PROTECTED]> 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. Best regards, Olivier. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Linker problems linking FFI import call in Windows
Greetings 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.). This is my import statement: foreign import stdcall "ace.h AdsConnect" adsConnect' :: CString -> Ptr CInt -> IO CInt This is the build output. C:\moonar>\bin\make.exe ghc --make -ffi main.hs -ffi adsapi.hs -optc -DWIN32 native.cpp -lace32 -L/hom e/pjdurai/dev/moonar -L/tmp/Advantage -o moonar.exe [1 of 2] Compiling AdsApi ( adsapi.hs, adsapi.o ) [2 of 2] Compiling Main ( main.hs, main.o ) Linking moonar.exe ... adsapi.o(.text+0x124):fake: undefined reference to [EMAIL PROTECTED]' adsapi.o(.text+0x260):fake: undefined reference to [EMAIL PROTECTED]' collect2: ld returned 1 exit status make: *** [main.exe] Error 1 It actually links without errors if I use 'ccall' instead of 'stdcall'. But the executable segfaults when the function is called. I had the same code working with 'stdcall' declaration a while ago. (With GCH 6.6 I think) I am using ghc-6.8.3 on Windows XP SP2. appreciate your time. thanks pj ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
