GDC on Mac OS X 10.5?

[Jacob Carlborg]

My first question:
does GDC on Mac OS X 10.5 works?

To my second question:
I'm using Mac OS X 10.5.2 and have installed the developer tools, 
downloaded gdc for mac and run the installation. When I tried to compile 
a simple hello world program I got the following error:

object.d: module object cannot read file 'object.d'

If I remember correctly that means that the gdc can't find the Phobos 
lib but I don't know how to fix that.

I did the same installation procedure on Mac OS X 10.4 and that worked. 
Have they changed something in Mac OS X 10.5 that breaks the current gdc?