Hi Erik I'm neither expecting nor obliging Unix users to do anything...
pexports (the C tool) extracts function names from dlls. In one of the messages on the PortAudio thread [1], John Lask explained how to get from a standard Windows .dll to an .a file suitable for GHC (which is bundled with a MinGW gcc). Before John's explanation I thought you had to build the .a file yourself - or do some magic with GreenCard which is now quite antiquated, but with pexports you can do the missing step (I almost feel a commuting diagram coming on at this point...). When I looked for pexports on Sunday it seem rather abandoned (it didn't seem to be included in MinGW, M Xyz's tutorial points to a very old version...) so I thought I'd see if I could do the job myself in Haskell. Anyway it was a bit more work that I imagined and when I was web-searching for pexports today I found that it was included in MinGW. So my Haskell version is redundant - but pexports isn't quite the full story, seemingly people often have to hand-edit the .def file it produces. If someone else has a use compelling enough that it would benefit the Haskell community on Windows, I don't mind extending and polishing my version so it can do a bit more than pexports; but I get by with cygwin and MinGW myself, so I've no personal inclination to spend any more time on it (and of course it is no help whatsoever for includes files and related problems...). Best wishes Stephen [1] http://www.haskell.org/pipermail/haskell-cafe/2009-December/070293.html 2009/12/9 Erik de Castro Lopo <mle...@mega-nerd.com>: > Stephen Tetley wrote: > >> If there are compelling uses that aren't covered by pexports and would >> ease Haskell C binding problems on Windows, I don't mind polishing up >> my tool, but otherwise I've exhausted my natural interest. > > I think the main problem you'll face is that pexports is a windows > only tool. If cabal can be made to use pexports on windows and something > else on Unix then that should be ok. > > If you expect people writing Haskell bindings in Unix to jump though > hoops to hook pexports into a windows specific build, you are heading > for disappointment :-). > > Erik > -- > ---------------------------------------------------------------------- > Erik de Castro Lopo > http://www.mega-nerd.com/ > _______________________________________________ > 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
