[Haskell-cafe] network-2.3.0.10 compiled for ghc 7.4.1 windows

Holger Reinhardt hreinhardt at gmail.com
Wed Feb 8 19:54:09 CET 2012


Having discussed the issue privately with Alberto, I've found another bug
and updated my pull request [1]. Using that code it should be possible to
build the network library on Windows using MSys on GHC 7.4.1.

[1] https://github.com/haskell/network/pull/25

2012/2/8 Alberto G. Corona <agocorona at gmail.com>

> yes i did it,.
>
> the error is as follows:
>
> shop.exe: NetworkSocket.hsc:(948,3)-(1007,23): Non-exhaustive patterns in
> case
>
> I will download network form hackage and will do it form the beginning. .
>
>
>
> 2012/2/8 Holger Reinhardt <hreinhardt at gmail.com>:
> > Did you run "cabal clean" before rebuilding with Git Bash? And can you
> post
> > the exact runtime error you get?
> >
> > 2012/2/8 Alberto G. Corona <agocorona at gmail.com>
> >
> >> I switched to Git bash and the runtime error produced by the library
> >> is the same.
> >> This error may be produced because  the configuration it does not
> >> detect the netwiorkin related includes such is socket.h. This does not
> >> exist neither in the ghc installation neither in GIT/Mingw
> >>
> >>
> >> 2012/2/7 Holger Reinhardt <hreinhardt at gmail.com>:
> >> > I just use the version of MSys that is included with Git [1]. This
> puts
> >> > a
> >> > "Git bash" icon on your desktop which you can then use to build the
> >> > network
> >> > library.
> >> >
> >> > [1] http://code.google.com/p/msysgit/
> >> >
> >> >
> >> > 2012/2/7 Alberto G. Corona <agocorona at gmail.com>
> >> >>
> >> >> Nothing bur a long history of failures. The problem is the
> >> >> configuration and versioning of MinGW and MSys. This  is a nighmare.
> >> >>
> >> >> 2012/2/7 Holger Reinhardt <hreinhardt at gmail.com>:
> >> >> > Oh you are using Cygwin. I'm using MSys so this is why I cannot
> >> >> > reproduce
> >> >> > your problem. Is there anything preventing you from using MSys?
> >> >> >
> >> >> >
> >> >> > 2012/2/7 Alberto G. Corona <agocorona at gmail.com>
> >> >> >>
> >> >> >> The "problem" this time is in "Configure" :
> >> >> >>
> >> >> >> case "$host" in
> >> >> >> *-mingw32)
> >> >> >>        EXTRA_SRCS="cbits/initWinSock.c, cbits/winSockErr.c,
> >> >> >> cbits/asyncAccept.c"
> >> >> >>        EXTRA_LIBS=ws2_32
> >> >> >>        CALLCONV=stdcall ;;
> >> >> >> *-solaris2*)
> >> >> >>        EXTRA_SRCS="cbits/ancilData.c"
> >> >> >>        EXTRA_LIBS="nsl, socket"
> >> >> >>        CALLCONV=ccall ;;
> >> >> >> *)
> >> >> >>        EXTRA_SRCS="cbits/ancilData.c"
> >> >> >>        EXTRA_LIBS=
> >> >> >>        CALLCONV=ccall ;;
> >> >> >> esac
> >> >> >>
> >> >> >>
> >> >> >>
> >> >> >> Since I´m cross-compiling with cygwin, the variable Host does not
> >> >> >> contain ¨*-muingw32"  but "i686-pc-cygwin"
> >> >> >>
> >> >> >> changing the case , the library incorporates the lost C coded
> files.
> >> >> >>
> >> >> >> Now the library links fine win imported, but there is a runtime
> >> >> >> error:
> >> >> >>
> >> >> >> NetworkSocket.hsc:(948,3)-(1007,23): Non-exhaustive patterns in
> case
> >> >> >>
> >> >> >> maybe it is due to some other preprocessor directive mismatch
> >> >> >>
> >> >> >>
> >> >> >> 2012/2/7 Holger Reinhardt <hreinhardt at gmail.com>:
> >> >> >> > Did you also change the files in the /cbits/ folder? Because
> they
> >> >> >> > also
> >> >> >> > check
> >> >> >> > for HAVE_WINSOCK_H.
> >> >> >> >
> >> >> >> >
> >> >> >> > 2012/2/7 Alberto G. Corona <agocorona at gmail.com>
> >> >> >> >>
> >> >> >> >> The code is evolving and none of the versions match exactily
> with
> >> >> >> >> the
> >> >> >> >> patch, but substituting HAVE_WINSOCK by HAVE WINSOCK2 in these
> >> >> >> >> files
> >> >> >> >> solves the compilation problem at least in the network 2.3.0.10
> >> >> >> >> version from hackage.
> >> >> >> >>
> >> >> >> >> However it produces the same undefined references when this
> >> >> >> >> library
> >> >> >> >> is
> >> >> >> >> imported in my application. It seems that some object code is
> not
> >> >> >> >> included in the final library.  I verified that at least some
> of
> >> >> >> >> these
> >> >> >> >> undefined references correspond with  C code in the source, but
> >> >> >> >> somehow this is not included in the object library....
> >> >> >> >>
> >> >> >> >> 2012/2/7 Johan Tibell <johan.tibell at gmail.com>:
> >> >> >> >> > Note that there are two branches on github, master and
> stable.
> >> >> >> >> > You
> >> >> >> >> > want
> >> >> >> >> > the
> >> >> >> >> > latter.
> >> >> >> >> >
> >> >> >> >> > On Feb 7, 2012 8:23 AM, "Alberto G. Corona"
> >> >> >> >> > <agocorona at gmail.com>
> >> >> >> >> > wrote:
> >> >> >> >> >>
> >> >> >> >> >> This is quite different.
> >> >> >> >> >> I don´t know how but I was looking at some other older patch
> >> >> >> >> >> around
> >> >> >> >> >> the same issue and I supposed that it was the one refered by
> >> >> >> >> >> Yohan
> >> >> >> >> >> Tibell.
> >> >> >> >> >>
> >> >> >> >> >> I´ll try your patch.
> >> >> >> >> >>
> >> >> >> >> >> Thanks!.
> >> >> >> >> >>
> >> >> >> >> >> 2012/2/7 Holger Reinhardt <hreinhardt at gmail.com>:
> >> >> >> >> >> > Hi,
> >> >> >> >> >> >
> >> >> >> >> >> > (I submitted the patch that Johan linked to)
> >> >> >> >> >> > Network/Socket/Internal.hsc has the following code:
> >> >> >> >> >> >
> >> >> >> >> >> > #if defined(WITH_WINSOCK) || defined(cygwin32_HOST_OS)
> >> >> >> >> >> > type CSaFamily = (#type unsigned short)
> >> >> >> >> >> > #elif defined(darwin_HOST_OS)
> >> >> >> >> >> > type CSaFamily = (#type u_char)
> >> >> >> >> >> > #else
> >> >> >> >> >> > type CSaFamily = (#type sa_family_t)
> >> >> >> >> >> > #endif
> >> >> >> >> >> >
> >> >> >> >> >> > You have patched this part to always use 'unsigned short'.
> >> >> >> >> >> > But
> >> >> >> >> >> > the
> >> >> >> >> >> > real
> >> >> >> >> >> > issue is that WITH_WINSOCK is not defined, even though it
> >> >> >> >> >> > should
> >> >> >> >> >> > be. The
> >> >> >> >> >> > reason for this lies in include/HsNet.h:
> >> >> >> >> >> >
> >> >> >> >> >> > #if defined(HAVE_WINSOCK_H) && !defined(cygwin32_HOST_OS)
> >> >> >> >> >> > # define WITH_WINSOCK  1
> >> >> >> >> >> > #endif
> >> >> >> >> >> >
> >> >> >> >> >> > The problem here is that it checks for HAVE_WINSOCK_H, but
> >> >> >> >> >> > the
> >> >> >> >> >> > configure
> >> >> >> >> >> > script never defines this variable. Instead it
> >> >> >> >> >> > defines HAVE_WINSOCK2_H.
> >> >> >> >> >> > It
> >> >> >> >> >> > seems that the network library used Winsock1 in the past
> and
> >> >> >> >> >> > in
> >> >> >> >> >> > the
> >> >> >> >> >> > transition to Winsock2 someone forgot to change a few of
> the
> >> >> >> >> >> > #ifdefs.
> >> >> >> >> >> >
> >> >> >> >> >> > My patch just changes all occurences of HAVE_WINSOCK_H
> >> >> >> >> >> > to HAVE_WINSOCK2_H.
> >> >> >> >> >> > You might want to try that and report back if it works for
> >> >> >> >> >> > you.
> >> >> >> >> >> >
> >> >> >> >> >> > 2012/2/7 Alberto G. Corona <agocorona at gmail.com>
> >> >> >> >> >> >>
> >> >> >> >> >> >> Hi Johan,
> >> >> >> >> >> >> The patch is not for the current version of network and
> the
> >> >> >> >> >> >> code
> >> >> >> >> >> >> is
> >> >> >> >> >> >> quite different. Basically it is necesary to  define this
> >> >> >> >> >> >> variable
> >> >> >> >> >> >> as
> >> >> >> >> >> >> "unsigned short" that is the thing intended in the patch.
> >> >> >> >> >> >> however
> >> >> >> >> >> >> I
> >> >> >> >> >> >> put it by brute force, without regard of the prerpocessor
> >> >> >> >> >> >> directives.
> >> >> >> >> >> >> With this change the code compiles well with:
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> >> >> >> >> >> >>
> http://neilmitchell.blogspot.com/2010/12/installing-haskell-network-library-on.html
> >> >> >> >> >> >>
> >> >> >> >> >> >> However my compiled library lack the methods defined as
> >> >> >> >> >> >> foreign.
> >> >> >> >> >> >> I´ll
> >> >> >> >> >> >> keep trying.
> >> >> >> >> >> >>
> >> >> >> >> >> >> 2012/2/6 Johan Tibell <johan.tibell at gmail.com>:
> >> >> >> >> >> >> > Hi,
> >> >> >> >> >> >> >
> >> >> >> >> >> >> > Someone recently contributed a fix that should make
> >> >> >> >> >> >> > network
> >> >> >> >> >> >> > build
> >> >> >> >> >> >> > with
> >> >> >> >> >> >> > 7.4: https://github.com/haskell/network/pull/25
> >> >> >> >> >> >> >
> >> >> >> >> >> >> > Can you see if that works for you? I haven't yet had
> time
> >> >> >> >> >> >> > to
> >> >> >> >> >> >> > merge
> >> >> >> >> >> >> > and
> >> >> >> >> >> >> > release that fix (I'm on vacation.)
> >> >> >> >> >> >> >
> >> >> >> >> >> >> > -- Johan
> >> >> >> >> >> >> >
> >> >> >> >> >> >>
> >> >> >> >> >> >> _______________________________________________
> >> >> >> >> >> >> Haskell-Cafe mailing list
> >> >> >> >> >> >> Haskell-Cafe at haskell.org
> >> >> >> >> >> >> http://www.haskell.org/mailman/listinfo/haskell-cafe
> >> >> >> >> >> >
> >> >> >> >> >> >
> >> >> >> >
> >> >> >> >
> >> >> >
> >> >> >
> >> >
> >> >
> >
> >
>
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