Re: [Gtk2hs-users] Woes on MacOS 10.6 - linking issues

[Axel S. <Axe...@in...>]

Hi Brett,

On 11.06.2010, at 04:53, Brett Giles wrote:

> Hi Folks
>
> I seem to have Gtk2HS 0.11 installed, but not quite working.  
> Interestingly, I can run a demo, such as the hello/World.hs example,  
> directly in ghci. However, when I try to do a ghc --make on any code  
> containing gtk2hs I get a link error like this:
>
> Undefined symbols:
>  "_iconv_close", referenced from:
>      _hs_iconv_close in libHSbase-4.2.0.0.a(iconv.o)
>     (maybe you meant: _hs_iconv_close)
>  "_iconv", referenced from:
>      _hs_iconv in libHSbase-4.2.0.0.a(iconv.o)
>     (maybe you meant: _hs_iconv_open, _hs_iconv , _hs_iconv_close )
>  "_iconv_open", referenced from:
>      _hs_iconv_open in libHSbase-4.2.0.0.a(iconv.o)
>     (maybe you meant: _hs_iconv_open)
> ld: symbol(s) not found
>
>
> I do have libiconv installed as a universal library via macports.  
> gtk, glade etc., are also universal installed via macports.
>

> I downloaded the OSX Haskell Platform package and am running ghc  
> 6.12.1
>


The iconv issue is usually that you also have a libiconv that Apple  
ships. The platform ghc probably links against that while macports  
(and thus Gtk+) uses its own. I have no idea who's to blame here but I  
guess you should be trying to change your LD_LIBRARY_PATH or your  
DYLD_LIBRARY_PATH to /opt/sw since that contains the more complete  
version.

Cheers,
Axel

> Other programs seem to be having some issues as well though,  For  
> instance, a command line program seems to compile fine, but when it  
> runs I get the message:
>
> $ emlqpl (<<<--- My "successfully" compiled program - batch only, no  
> gtk items)
> dyld: Library not loaded: /opt/local/lib/libgtk-quartz-2.0.0.dylib
>  Referenced from: /usr/local/bin/emlqpl
>  Reason: image not found
> Trace/BPT trap
>
>
>
> Does anyone have any suggestions?
>
> Brett Giles
> Grad Student, Formal Methods, Category Theory,
> University of Calgary
> bre...@uc...
>
>
>
>
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