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

[Ross Mellgren]

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