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Today's Topics:
1. Linking C library with haskell in Windows (kotshie)
2. problems with wxHaskell installation (Miguel Negrao)
3. Re: Missing some functions in Hoogle (Paulo Pocinho)
4. Re: Linking C library with haskell in Windows (Stephen Tetley)
----------------------------------------------------------------------
Message: 1
Date: Sat, 26 May 2012 14:48:15 -0400
From: kotshie <kots...@gmail.com>
Subject: [Haskell-beginners] Linking C library with haskell in Windows
To: beginners@haskell.org
Message-ID: <4fc1256f.8040...@gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi all,
I created Haskell Bindings to the NetCDF Library on linux and everything
works well, bute when trying to ported to windows, I keep receiving
undefined references when linking.
I changed the stdcall on the FFI's, played with the cabal file to link
to different libraries, both built on VC and MinGW but still can't find
the solution
Linking Test.exe ...
.\NetCDFRaw.o:fake:(.text+0x2eb): undefined reference to `nc_create@12'
.\NetCDFRaw.o:fake:(.text+0x45f): undefined reference to `nc_open@12'
.\NetCDFRaw.o:fake:(.text+0x5e5): undefined reference to `nc_def_dim@16'
.\NetCDFRaw.o:fake:(.text+0x787): undefined reference to `nc_inq_dimid@12'
.\NetCDFRaw.o:fake:(.text+0x92e): undefined reference to `nc_def_var@24'
.\NetCDFRaw.o:fake:(.text+0xb35): undefined reference to
`nc_put_att_text@16'
.\NetCDFRaw.o:fake:(.text+0xd0a): undefined reference to `nc_put_att_int@24'
.\NetCDFRaw.o:fake:(.text+0xf32): undefined reference to
`nc_put_att_double@24'
.\NetCDFRaw.o:fake:(.text+0x1148): undefined reference to `nc_inq@20'
.\NetCDFRaw.o:fake:(.text+0x130e): undefined reference to `nc_inq_ndims@8'
Is there something I am missing?
kotshie
------------------------------
Message: 2
Date: Sat, 26 May 2012 21:08:21 +0100
From: Miguel Negrao <miguel.negrao-li...@friendlyvirus.org>
Subject: [Haskell-beginners] problems with wxHaskell installation
To: beginners@haskell.org
Message-ID: <69cdbdae-9f13-42c0-9ab4-a2acb0d0a...@friendlyvirus.org>
Content-Type: text/plain; charset=windows-1252
Hi
I had wxHaskell working but since I installed the gtk2hs, which updated some
packages I?m having some trouble. I?ve installed wxWidgets and wxHaskell again
following the instructions in it?s webpage. When I compile a simple wxHaskell
program* I get this error:
dyld: Symbol not found: _wxTheAssertHandler
Referenced from:
/Users/miguelnegrao/Library/Haskell/ghc-7.0.4/lib/wxc-0.90.0.3/lib/libwxc.dylib
Expected in: /usr/local/lib/libwx_baseu-2.9.3.0.0.dylib
in
/Users/miguelnegrao/Library/Haskell/ghc-7.0.4/lib/wxc-0.90.0.3/lib/libwxc.dylib
Trace/BPT trap: 5
How can I fix this ?
thank you,
Miguel Negr?o
I?m on OSX 10.7.3
haskell platform with ghc 7.0.4
brew info wxmac
wxmac 2.8.12
http://www.wxwidgets.org
/usr/local/Cellar/wxmac/2.9.3.1 (764 files, 26M) *
Installed with: --devel
https://github.com/mxcl/homebrew/commits/master/Library/Formula/wxmac.rb
cabal info wx
* wx (library)
Synopsis: wxHaskell
Versions available: 0.11.1.0, 0.11.1.2, 0.12.1.4, 0.12.1.5, 0.12.1.6,
0.13.2, 0.13.2.1, 0.90, 0.90.0.1 (and 10 others)
Versions installed: 0.13.1, 0.90
Program :
module Main where
import Graphics.UI.WX
main :: IO()
main = start gui
gui :: IO()
gui = do
f <- frame [text := "window"]
txt <- staticText f [text:= "test 123"]
but <- button f [text:="button", on command:=set txt [text:="clicked"]]
check <- checkBox f [text:="test"]
rbox <- radioBox f Vertical ["hello","wold"] []
set f [layout:=
boxed "all" (row 0 [
column 0 [widget check, widget rbox],
boxed "second2" $ column 0 [widget txt, widget but]
])
]
return ()
------------------------------
Message: 3
Date: Sat, 26 May 2012 22:54:22 +0100
From: Paulo Pocinho <poci...@gmail.com>
Subject: Re: [Haskell-beginners] Missing some functions in Hoogle
To: Ken Kawamoto <kentaro.kawam...@gmail.com>
Cc: beginners@haskell.org
Message-ID:
<cak4i1qsqdarrxpfyhehwuxlfo9dcs3m1pj9f+9sytori-c5...@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8
On 25 May 2012 15:04, Ken Kawamoto <kentaro.kawam...@gmail.com> wrote:
> Thanks Paulo for your comment and sorry for late reply.
>
> On Tue, May 22, 2012 at 11:09 PM, Paulo Pocinho <poci...@gmail.com> wrote:
>> After testing Hoogle cabal package [4], it can either generate
>> databases for the current system or fetch the database from the
>> internet. However, database search only covered standard libraries.
>
> What does this part mean?
> With Hoogle package, you can generate databases for any library, but
> the search works only for standard libraries?
>
> Although this is consistent with what I experienced, it's a bit
> surprising because this means generating database doesn't make any
> sense, does it?
Exactly. By default, hoogle did not index every library installed in
my system. There is a flag for database creation with haddock [1].
However, I found it a bit complicated [2].
> Hayhoo seems to suit what I want.
I must correct myself: it searches all packages from Hackage,
including all function *and* type definitions [3].
Works like a charm.
--
1. http://www.haskell.org/haskellwiki/Hoogle#Database_Creation
2. http://neilmitchell.blogspot.pt/2008/08/hoogle-database-generation.html
3. http://holumbus.fh-wedel.de/hayoo/hayoo.html
Regards,
Paulo
------------------------------
Message: 4
Date: Sun, 27 May 2012 07:12:06 +0100
From: Stephen Tetley <stephen.tet...@gmail.com>
Subject: Re: [Haskell-beginners] Linking C library with haskell in
Windows
To: kotshie <kots...@gmail.com>
Cc: beginners@haskell.org
Message-ID:
<CAB2TPRBp-9iFy=w6sjz+vnvgp9xpkwmblw+ycoohf5fruup...@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I don't think changing the calling convention in the binding source
code is a good idea.
If you can build the original C library with MinGW it should have the
same calling convention as Linux. WinAPI uses stdcall and possibly
DLLs compiled with VC do (tip - don't use VC DLLs if you don't have
to), but otherwise you should be using ccall.
On 26 May 2012 19:48, kotshie <kots...@gmail.com> wrote:
> I changed the stdcall on the FFI's, played with the cabal file to link to
> different libraries, both built on VC and MinGW but still can't find the
> solution
------------------------------
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