Summary
In this chapter, we covered just about all the major features of a fully functional GNU project build system, including writing a configure.ac file, from which Autoconf generates a fully functional configure script. We've also covered adding remote build functionality to makefiles with VPATH statements.
So what else is there? Plenty! In the next chapter, I'll continue to show you how you can use Autoconf to test system features and functionality before your users run make. We'll also continue enhancing the configuration script so that when we're done, users will have more options and understand exactly how our package will be built on their systems.
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