Hey guys, Right, despite signing up to the mailing list this morning. I managed to miss the introduction message because I had to go to work before I'd done the confirmation email ;). I'm very interested in contributing, I've had my own implementation of libdispatch's API for a week or so. Spent the morning having a little compare between how I've done mine and how yours is actually written. I don't have a paid ADC membership so much first exposure to GCD was the weekend that Snow Leopard came out, by the following weekend I was enamoured with it to the extent that I wanted to write it for Leopard. So the first thing that struck me is that it doesn't build. My first guess was that it relied on being built in the presence of the darwin sources? I haven't had enough time to have a look. I'm especially interested in the line in the project description about kernel support. Are we just talking kqueue here? Or an additional kernel module? From a personal standpoint, I wrote my implementation (http://daagaak.github.com/WiganWallgate/ ) in order to be able to use libdispatch calls on Leopard. I've several personal projects that I really wanted to use GCD in but without it in Leopard would mean moving my code to be Snow Leopard only. All-in-all writing my own version was a very entertaining weekend, even if it ends up getting dropped in favour of making libdispatch work on Leopard/iPhone/etc. I wonder if you could shed some light on what kind of environment you need to build libdispatch in to get a successful compile. The brief "open xcode and hit build" attempt that I made this morning was not so much a success. Matt -- Matt Wright matt@sysctl.co.uk http://www.sysctl.co.uk