Tutorial Source code. ===================== The directory contains the source code for all the examples that the XFC tutorial works through. If you compiled XFC from source code yourself, each chapter example has a makefile, except for chapters 8 and 9. You create these makefiles as part of the tutorial when you work through those chapters. If you installed XFC from a binary RPM file, the tutorial will show you how to create each makefile as you work through the chapters.