[darwinbuild-dev] darwinbuild on elcapitan or previous clean versions installed before with macports

Hi darwiinbuild-dev, I tried to install darwinbuilder with macports without success. I’m running on 10.11.4. Beta and the OS installed isn’t fresh. data’s full from my settings and so on. Should you advice me instead o start with a fresh mac os x installed but which osx version is optimum to upgrade to darwin 9 or 10 ? Or could I install upgrade on my main El Capitan 10.11.4 where I have all my data’s works. Thank you for reply Furax mantra-mind@digitalshaman.fr