Now that the build process is successfully building the library, utility, and test programs, you could continue to program the command-line tools in the plain Unix manner by editing the
cpp files and building them with the make command. For OS X GUI and all iOS apps, we have to build with Xcode.
We will start by creating a workspace. It is a good idea to get into the habit of using workspaces to wrap your projects, because the new CocoaPods standard for delivering open source modules relies on them. There is no technical reason at this stage why we have to use a workspace, just building good habits.
In Xcode, navigate to File | New | Workspace and create a workspace somewhere you can use as a basis for your development.
I recommend ...