I'm not super experienced with the FFI (foreign function interface); I only used C types that you can get from #include <HsFFI.h>, like Word32.
You might need to make Sigval an instance of Storable, or do some magic with ForeignPtrs. Good luck! :) -- ryan On 6/9/08, Galchin, Vasili <[EMAIL PROTECTED]> wrote: > I have tried various things to no avail .... > > [EMAIL PROTECTED]:~/FTP/Haskell/unix-2.2.0.0/tests/timer$ > runhaskell Setup.lhs build > Preprocessing executables for Test-1.0... > Building Test-1.0... > [1 of 1] Compiling Main ( ./timer.hs, > dist/build/timer/timer-tmp/Main.o ) > > ./timer.hs:22:0: > Unacceptable argument type in foreign declaration: Sigval > When checking declaration: > foreign import ccall safe "wrapper" mkNotify > :: Notify -> IO (FunPtr Notify) > > => here is my Sigval def > > data Sigval = SivalInt Int | SivalPtr (Ptr Char) > > I did a find/grep for "Unacceptable argument" in the ghc compiler source and > assuming no typo I didn't find. ?? > > Thanks. > > Kind regards, Vasili > > > > > On Mon, Jun 9, 2008 at 11:25 PM, Judah Jacobson <[EMAIL PROTECTED]> > wrote: > > > 2008/6/9 Galchin, Vasili <[EMAIL PROTECTED]>: > > > > > Ryan, > > > > > > I tried but the compiler didn't seem to like the keyword "import": > > > > > > > [EMAIL PROTECTED]:~/FTP/Haskell/unix-2.2.0.0/tests/timer$ > runhaskell > > > Setup.lhs build > > > Preprocessing executables for Test-1.0... > > > Building Test-1.0... > > > [1 of 1] Compiling Main ( ./timer.hs, > > > dist/build/timer/timer-tmp/Main.o ) > > > > > > ./timer.hs:29:8: parse error on input `import' > > > > > > > Hi Vasili, > > > > To fix that error, you probably just need to add the line "Extensions: > > ForeignFunctionInterface" to the .cabal file. (That is the > > equivalent of calling ghc by itself with the command-line arguments > > -fffi or -XForeignFunctionInterface.) > > > > Hope that helps, > > -Judah > > > > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe