added an xcode project for OS X developpers. It uses cmake build. you NEED to create a cmake-build dirxtory and run your cmake command from it: 'mkdir cmake-build; cd cmake-build; rm -rf * && cmake -DWEBIF=1 -DCMAKE_BUILD_TYPE=Debug ..' Once that is done you can launch xcode and load the project. With the new threaded version it's easier to debug this way. There are still some issues but we're making progress