Sorry I don't have a Mac, so OSX support is completely untested...
If you want to get it fixed you must help me. Please find out which revision broke the OSX functionality. I hope you know which revision you used for the last test which had bugs but at least a functional IDE - your last post was on July2, therefore, the revision must be >4890. Update your svn repository to this revision - rebuild the IDE, it should work. Then update svn to a revision somewhere in the middle between this and the current revision(say: 4905). Rebuild the IDE. Does it work? If it does go to a revision between this and the current revision (say: 4912), and repeat. If it does not go to a revision between this and the last revision that was working (say: 4897), and repeat. After some more tries you will know the first revision at which OSX is broken. Report this info back.