[Haskell-cafe] Re: Haskell and GUI

ChrisK haskell at list.mightyreason.com
Tue Jan 15 12:22:58 EST 2008

The advice below is for Mac OS X 10.4 and below.  Starting with Mac OS X 10.5 
(Leopard) the DISPLAY is set for you by the operating system.  Mine is currently 
"/tmp/launch-sQZXQV/:0" which looks very strange because it is used to cause the 
launchd daemon to start the X server on demand (i.e. lazily).

Yitzchak Gale wrote:
> btw, if you use GTK2HS on the Mac, don't forget to
> start up X Windows support, and run "export DISPLAY=:0.0"
> in your terminal window, before you run your program.
> X Windows is usually in Applications/Utilities, but only
> if you installed it manually from the Mac OS X discs,
> it is not installed by default.
> Good news - Gtk2 now has native support for the
> Mac, so you probably won't need to run X starting
> with the next version of GTK2HS.
> Regard,
> Yitz


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