Using the program ExtractCode.cpp from Volume 2 of this book, all the code listings in this book are automatically extracted from the ASCII text version of this book and placed in subdirectories according to their chapters. In addition, ExtractCode.cpp creates several makefiles in each subdirectory (with different names) so you can simply move into that subdirectory and type make -f mycompiler.makefile (substituting the name of your compiler for ‘mycompiler’, the ‘-f’ flag says “use what follows as the makefile”). Finally, ExtractCode.cpp creates a “master” makefile in the root directory where the book’s files have been expanded, and this makefile descends into each subdirectory and calls make with the appropriate makefile. This way you can compile all the code in the book by invoking a single make command, and the process will stop whenever your compiler is unable to handle a particular file (note that a Standard C++ conforming compiler should be able to compile all the files in this book). Because implementations of make vary from system to system, only the most basic, common features are used in the generated makefiles.