If you have more than one CPU, or if you have a modern multi-core CPU, you can speed up your build significantly by telling gnustep-make to build software in ``parallel'' mode. In this case, whenever possible gnustep-make will run a number of tasks in parallel.
There are a number of simple rules that gnustep-make follows to decide when tasks can be run in parallel, or when there is a sequential order to be respected. They are the main topic of this tutorial.