Gtk2Hs

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What is it?

Gtk2Hs is a Haskell binding to Gtk+ 2.x. Using it, one can write Gtk+ based applications with GHC.

Homepage

http://haskell.org/gtk2hs/

Status

It currently works with Gtk+ 2.0 through to 2.8 on Unix, Win32 and MacOS X. The widget function coverage is almost complete, only a few minor bits and pieces are missing.

It currently builds with ghc 5.04.3 through to 6.8.2

Installation Notes

Mac OS X

Article as of Mid 2008

Installing Gtk2Hs on Mac requires some finesse, at least until Haskell Libary Platform is built or ghc-6.8.3 is available in macports. (These are planned for late 2008.)

Install MacPorts
Install dependencies:

sudo port instll glade3 libglade2 gstreamer gst-plugins-base gtksourceview cairo librsvg gtkglext firefox

Update PKG_CONFIG_PATH (for libraries)

export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/local/lib/pkgconfig:/opt/local/lib/pkgconfig

Update ghc to use macports libs: Edit your main ghc driver program and change the last line to:

exec $GHCBIN $TOPDIROPT ${1+"$@"} -L/opt/local/lib -I/opt/local/include

Download Gtk2Hs following instructions at Gtk2Hs Download page
Check configuration:

./configure --enable-docs --enable-profiling

...

**************************************************
* Configuration completed successfully.           
*                                                 
* The following packages will be built:           
*                                                 
* glib          : yes                             
* gtk           : yes                             
* glade         : yes              
* cairo         : yes                 
* svgcairo      : yes              
* gtkglext      : yes              
* gconf         : yes                 
* sourceview    : yes            
* mozembed      : yes              
* soegtk        : yes                             
* gnomevfs      : yes              
* gstreamer     : yes             
* documentation : yes                    
*                                                 
* Now do "(g)make" followed by "(g)make install"
**************************************************

Build and Install:

make 
sudo make install

Recent experiences

I successfully installed the latest version on Mac OS 10.5 by:

Installing Macports.
sudo port install ghc
sudo port install gtk2hs - which does not complete successfully. It does however, install the appropriate dependencies. Note that there are so many, you may need to install a couple of times due to time outs etc.. The build of Gtk2HS will fail, but that is ok - continue as below.
Remove the build directory under /opt/.../build/gtk2hs
Download Gtk2Hs via darcs as per the gtk2hs download instructions
do a sudo port install automake
do a sudo port install alex
do a sudo port install happy (Note this also fails and must be built from source. See the Happy page for details.)
Follow the build instructions on the the gtk2hs download page. I would suggest using ./configure --prefix=/opt/local to get it in the same place as ports - personal preference though.

Good luck - as usual, your mileage may vary.

Demos

OpenGL and Gtk2Hs

Gtk2Hs/Demos/GtkGLext/hello.hs

Gtk2Hs/Demos/GtkGLext/terrain.hs requires Gtk2Hs/Demos/GtkGLext/terrain.xpm

FAQs

These are links to FAQS on the main site.