Re: [Haskell-cafe] Problem compiling hdbc with GHC 6.10.1 in windows
On Thu, Nov 6, 2008 at 4:44 PM, Thomas Schilling <[EMAIL PROTECTED]> wrote: > You need to use base-3. For a temporary fix, edit the file HDBC.cabal > and change the base part of the "build-depends" to look like this: > base == 3.*, (wherever it occurs) > That worked. Thanks! > 2008/11/6 PJ Durai <[EMAIL PROTECTED]>: >> Greetings >> >> I would like to report that I am not able to compile hdbc 1.1.5.0. >> >> $ runghc.exe Setup.lhs build >> Preprocessing library HDBC-1.1.5... >> Building HDBC-1.1.5... >> [1 of 6] Compiling Database.HDBC.ColTypes ( Database\HDBC\ColTypes.hs, >> dist\build\Database\HDBC\ColTypes.o ) >> [2 of 6] Compiling Database.HDBC.Statement ( >> Database\HDBC\Statement.hs, dist\build\Database\HDBC\Statement.o ) >> [3 of 6] Compiling Database.HDBC.Types ( Database\HDBC\Types.hs, >> dist\build\Database\HDBC\Types.o ) >> [4 of 6] Compiling Database.HDBC.DriverUtils ( >> Database\HDBC\DriverUtils.hs, dist\build\Database\HDBC\DriverUtils.o ) >> [5 of 6] Compiling Database.HDBC.Utils ( Database\HDBC\Utils.hs, >> dist\build\Database\HDBC\Utils.o ) >> Database\HDBC\Utils.hs:51:11: Not in scope: `catchDyn' >> Database\HDBC\Utils.hs:55:16: Not in scope: `catchDyn' >> Database\HDBC\Utils.hs:60:18: Not in scope: `dynExceptions' >> >> Environment: >> Windows XP SP2 >> GHC 6.10.1 >> >> thanks >> pj >> >> I had no problems compiling this with GHC 6.8. >> ___ >> Haskell-Cafe mailing list >> Haskell-Cafe@haskell.org >> http://www.haskell.org/mailman/listinfo/haskell-cafe >> > ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Problem compiling hdbc with GHC 6.10.1 in windows
Greetings I would like to report that I am not able to compile hdbc 1.1.5.0. $ runghc.exe Setup.lhs build Preprocessing library HDBC-1.1.5... Building HDBC-1.1.5... [1 of 6] Compiling Database.HDBC.ColTypes ( Database\HDBC\ColTypes.hs, dist\build\Database\HDBC\ColTypes.o ) [2 of 6] Compiling Database.HDBC.Statement ( Database\HDBC\Statement.hs, dist\build\Database\HDBC\Statement.o ) [3 of 6] Compiling Database.HDBC.Types ( Database\HDBC\Types.hs, dist\build\Database\HDBC\Types.o ) [4 of 6] Compiling Database.HDBC.DriverUtils ( Database\HDBC\DriverUtils.hs, dist\build\Database\HDBC\DriverUtils.o ) [5 of 6] Compiling Database.HDBC.Utils ( Database\HDBC\Utils.hs, dist\build\Database\HDBC\Utils.o ) Database\HDBC\Utils.hs:51:11: Not in scope: `catchDyn' Database\HDBC\Utils.hs:55:16: Not in scope: `catchDyn' Database\HDBC\Utils.hs:60:18: Not in scope: `dynExceptions' Environment: Windows XP SP2 GHC 6.10.1 thanks pj I had no problems compiling this with GHC 6.8. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] HDBC-ODBC linking problems in windows.
On 8/3/08, Andrew Appleyard <[EMAIL PROTECTED]> wrote: > Hi PJ, > > On 2/08/2008 4:09 AM, you wrote: > > I am having issues getting hdbc/odbc working on windows. > > > > When using GHC, I am not able to compile a simple program. It ends up > > with linker errors like > > [...] > > Is there an easy workaround for this? Or am I doing something wrong? > > > > MySetup > > === > > Windows XP SP2 > > ghc 6.8.3 > > hdbc 1.1.5.0 > > hdbc-odbc 1.1.4.3.0 > > > > hdbc-odbc 1.1.4.4 contains a patch to the calling convention of the ODBC > functions (from ccall to stdcall). > > Grab version 1.1.4.4 from Hackage [1] and hopefully that'll fix your > problem. > > [1] > http://hackage.haskell.org/cgi-bin/hackage-scripts/package/HDBC-odbc That works ! Thanks. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] HDBC-ODBC linking problems in windows.
Greetings everyone, I am having issues getting hdbc/odbc working on windows. When using GHC, I am not able to compile a simple program. It ends up with linker errors like C:\Program Files\Haskell\HDBC-odbc-1.1.4.3\ghc-6.8.3/libHSHDBC-odbc-1.1.4.3.a(Connection.o)(.text+0x52c):fake: undefined reference to `SQLAllocHandle' C:\Program Files\Haskell\HDBC-odbc-1.1.4.3\ghc-6.8.3/libHSHDBC-odbc-1.1.4.3.a(Connection.o)(.text+0x5b8):fake: undefined reference to `SQLSetEnvAttr' C:\Program Files\Haskell\HDBC-odbc-1.1.4.3\ghc-6.8.3/libHSHDBC-odbc-1.1.4.3.a(Connection.o)(.text+0x62c):fake: undefined reference to `SQLDriverConnect' C:\Program Files\Haskell\HDBC-odbc-1.1.4.3\ghc-6.8.3/libHSHDBC-odbc-1.1.4.3.a(Connection.o)(.text+0x700):fake: undefined reference to `SQLEndTran' C:\Program Files\Haskell\HDBC-odbc-1.1.4.3\ghc-6.8.3/libHSHDBC-odbc-1.1.4.3.a(Connection.o)(.text+0x770):fake: undefined reference to `SQLGetInfo' C:\Program Files\Haskell\HDBC-odbc-1 When I use ghci, it exits silently. It looks like calling convension mix-up in FFI declarations to me. I ran 'dumpbin' on odbc32.lib and all the exported function names are decorated like they are PASCAL calls, not ccall's. But GHC in this case is looking for undecorated names. I assume it works as is on Unix (unixODBC) ? Is there an easy workaround for this? Or am I doing something wrong? MySetup === Windows XP SP2 ghc 6.8.3 hdbc 1.1.5.0 hdbc-odbc 1.1.4.3.0 appreciate your time. Thanks pj ___ 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
[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
[Haskell-cafe] Seeking advice on best practices with FFI
Hello, I am trying to write FFI wrappers for a dynamic library in windows. I would like to get some help in how to go about doing things. For example for this C function, the import and wrapper I came up with are listed below. -- STATUS LNPUBLIC NSFDbOpen (char far *PathName, DBHANDLE far *rethDB); foreign import stdcall "nsfdb.h NSFDbOpen" nsfDbOpen' ::CString -> Ptr CInt -> IO CInt type DbHandle = CInt nsfDbOpen :: String -> IO DbHandle nsfDbOpen dbname = alloca $ \ptr -> do db <- newCString dbname rc <- nsfDbOpen' db ptr handle <- peek ptr if rc /= 0 then error "dbopen failed" else return handle Q: Does that look ok? Is the db <- newCString leaking ? Q: How would I import and call a function with signature like this calling C code: char str1[MAX_PATH]; char str2[MAX_PATH]; GetStringValues( str1, str2); called C function signature is: void GetStringValues( char* s1, char* s2); i.e. how would the haskell import (and the wrapper function) look like in situation like this (where I have to pass preallocated char array to C code and get it filled up)? Appreciate your time. thanks pj ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
