Hi all, I'm trying to call the following C function. RFC_RC _stdcall RfcUTF8ToSAPUC(const RFC_BYTE *utf8, unsigned utf8Length, SAP_UC *sapuc, unsigned *sapucSize, unsigned *resultLength, RFC_ERROR_INFO *info) I wrote a foreign import for this function: foreign import ccall unsafe "sapnwrfc.h RfcUTF8ToSAPUC" f_RfcUTF8ToSAPUC :: RfcBytePtr -> CUInt -> SapUCPtr -> Ptr CUInt -> Ptr CUInt -> RfcErrorInfoPtr -> IO RfcRetCodeType But when compiling I keep getting this error: C:\Temp\Haskell\HSAP>ghc --make -LC:/Temp/nwrfcsdk/lib -lsapnwrfc SAP/Types.hs Test.hs [1 of 2] Compiling SAP.Types ( SAP/Types.hs, SAP/Types.o ) Linking Test.exe ... SAP/Types.o(.text+0x91c):fake: undefined reference to `RfcUTF8ToSAPUC@24' collect2: ld returned 1 exit status I ran nm.exe on the sapnwrfc.lib to see the exports and got this list: SAPNWRFC.dll: 00000000 I .idata$4 00000000 I .idata$5 00000000 I .idata$6 00000000 T .text 00000000 T _RfcUTF8ToSAPUC@24 U __IMPORT_DESCRIPTOR_SAPNWRFC 00000000 I __imp__RfcUTF8ToSAPUC@24 It looks like RfcUTF8ToSAPUC@24 exists. I tried prepending a _ but it doesn't change anything. GHC tries to link directly to the .dll file and not to the .lib file. Is this a problem? Should I convert the .lib to a .a and link the .a? Is there a way to list the exports directly from the dll file? Thanks, Olivier.