[Haskell-cafe] Ease of Haskell development on OS X?

Ross Mellgren rmm-haskell at z.odi.ac
Sat Mar 21 12:36:36 EDT 2009

Minor correction -- pango in general is installed with the .DMG of  
Gtk... it's pangoft2 (the freetype2 bindings) that librsvg requires  
and aren't provided.


On Mar 21, 2009, at 12:35 PM, Ross Mellgren wrote:

> I tried making this work, but librsvg requires pango, and pango is a  
> huge pain in the ass -- I managed to get the whole thing to compile,  
> but now it can't find any fonts, apparently due to some dynaloading  
> issues.
> I think if you need any of the extended modules (e.g. svgcairo, gl)  
> that the DMG doesn't directly support then you're best served by  
> shedding a couple tears and going with macports.
> The steps I used to get the broken version were (FYI -- doing this  
> causes all fonts to load as the no-character square in all gtk2hs  
> apps):
> export PKG_CONFIG_PATH=/usr/X11/lib/pkgconfig:/usr/local/lib/ 
> pkgconfig:/Library/Frameworks/Cairo.framework/Resources/dev/lib/ 
> pkgconfig:/Library/Frameworks/GLib.framework/Resources/dev/lib/ 
> pkgconfig:/Library/Frameworks/Gtk.framework/Resources/dev/lib/ 
> pkgconfig
> export PATH=$PATH:/Library/Frameworks/GLib.framework/Resources/dev/bin
> cd pango-1.24.0
> CFLAGS="-DFC_WEIGHT_EXTRABLACK=215" ./configure --prefix=/usr/local
> make -j4
> sudo make install
> cd librsvg-2.26.0
> ./configure --prefix=/usr/local
> make -j4
> sudo make install
> cd gtk2hs-0.10.0
> ./configure --disable-gio
> make -j4
> sudo make install
> Running apps linked with this version of gtk2hs gets:
> (svgviewer:43314): Pango-CRITICAL **: No modules found:
> No builtin or dynamically loaded modules were found.
> PangoFc will not work correctly.
> This probably means there was an error in the creation of:
>  '/usr/local/etc/pango/pango.modules'
> You should create this file by running:
>  pango-querymodules > '/usr/local/etc/pango/pango.modules'
> (svgviewer:43314): Pango-WARNING **: failed to choose a font, expect  
> ugly output. engine-type='PangoRenderATSUI', script='latin'
> So if anyone knows what Pango is trying to do, maybe they could help  
> resolve this.
> I'm probably going to ditch the use of GTK in my own project and use  
> FFI bindings to Carbon/Win32, since I don't really need widgets for  
> my own stuff and the whole family of GTK related packages is a total  
> pain in the ass (as are most things in the GNU family of software,  
> IMO)
> -Ross
> On Mar 21, 2009, at 10:13 AM, Colin Paul Adams wrote:
>>>>>>> "Ross" == Ross Mellgren <rmm-haskell at z.odi.ac> writes:
>>   Ross> While there is not a .dmg for Gtk2Hs, you can use a .dmg
>>   Ross> installed GHC with a .dmg installed Gtk, and then build
>>   Ross> gtk2hs straight on top of that, without having to deal with
>>   Ross> the dual-GHC macports mess..
>>   Ross> http://www.haskell.org/haskellwiki/Gtk2hs#Using_the_GTK.2B_OS_X_Framework
>> I just tried this.
>> The configure enables cairo, but does not enable svgcairo. Is there
>> anyway round this, or do I have to revert to the macports gtk? (my
>> application uses svgcairo)
>> -- 
>> Colin Adams
>> Preston Lancashire
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