Xcode for developing Geant4
Let try to compile examples/novice/N04 with Xcode
(maybe there is something more easy)

Open Xcode (:))
Select New Project from file menu and select External Build System
Select your project Name: XcodeN04 for example and give
the path where the example is installed (for me /Applications/geant4.8.3/examples/novice/N04/)
Open the disclosure triangle beside the XcodeN04 (left side)
drag the [...]