Andrew Butterfield wrote:
>
> $ ghc --make -package wx HelloWorld.hs
> [2 of 2] Compiling Main ( HelloWorld.hs, HelloWorld.o )
> Linking HelloWorld ...
> ld: warning: in /opt/local/lib/libwx_osx_cocoau_xrc-2.9.dylib, file was built
> for unsupported file format which is not the architecture being linked (i386)
> ld: warning: in /opt/local/lib/libwx_osx_cocoau_webview-2.9.dylib, file was
> built for unsupported file format which is not the architecture being linked
> (i386)
> [..]
> Undefined symbols:
> "_iconv_open", referenced from:
> _hs_iconv_open in libHSbase-4.3.1.0.a(iconv.o)
> (maybe you meant: _hs_iconv_open)
> "_locale_charset", referenced from:
> _localeEncoding in libHSbase-4.3.1.0.a(PrelIOUtils.o)
> "_iconv", referenced from:
> _hs_iconv in libHSbase-4.3.1.0.a(iconv.o)
> (maybe you meant: _hs_iconv_open, _hs_iconv , _hs_iconv_close )
> "_iconv_close", referenced from:
> _hs_iconv_close in libHSbase-4.3.1.0.a(iconv.o)
> (maybe you meant: _hs_iconv_close)
> ld: symbol(s) not found
> collect2: ld returned 1 exit status
>
> [~/Documents/wxOnMacOSX]
> $
Yay, I know what's going on!
* The first error messages indicate that GHC complains about your
wxWidgets installation being 32bit. This means that you have a 64bit
GHC. The solution is to install the wxWidgets library with the
+universal flag, i.e.
sudo port install wxWidgets-devel +universal
It might be that you have to do the same with the dependencies of the
wxWidgets-devel port. You can set the +universal flag globally in
/opt/local/etc/macports/variants.conf
* The undefined symbols are due to two different libiconv, one provided
by OS X and one provided by Macports. The solution is to tell GHC to
prefer the former
ghc --make -package wx HelloWorld.hs -L/usr/lib
Both these issues can be avoided by using homebrew. Whether this merely
trades them for other issues is another question, of course...
Concerning the EnableGUI thing, it will be obsolete very soon. I have
submitted a patch to Jeremy who will upload a new version to hackage
once he has tested all platforms.
Best regards,
Heinrich Apfelmus
--
http://apfelmus.nfshost.com
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