The source code tarball is provided in two versions:
- Distribution version: a version of the source code that includes extra material not shown in the book. Probably, this is the version of the code that you want.
- Book version: the source code as it appears in the book.
I'd like to hear of any problems that you encounter building (either version of) the code on various Linux systems, especially older distributions. I'll use feedback to build out the source code FAQ.