|René Nyffenegger's collection of things on the web|
René Nyffenegger on Oracle - Most wanted - Feedback
autoscan is used to detect potential portability problems with alredy written programs. That is, it scans the programms and finds, for example, functions that are not installed on all platforms.
Running autoscan checks configure.ac (or alternatively configure.in) for completeness and produces a configure.scan which gives hints as to what needs to go into the configure.ac.