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See Autoconf 1, for information about upgrading from version 1.
(Before each check, they print a one-line message stating what they are checking for, so the user doesn't get too bored while waiting for the script to finish.) As a result, they deal well with systems that are hybrids or customized from the more common Posix variants.Unlike Metaconfig scripts, Autoconf scripts can support cross-compiling, if some care is taken in writing them.Autoconf does not solve all problems related to making portable software packages—for a more complete solution, it should be used in concert with other GNU build tools like Automake and Libtool.This manual (24 April 2012) is for GNU Autoconf (version 2.69), a package for creating scripts to configure source code packages using templates and an M4 macro package.
Copyright © 1992-1996, 1998-2012 Free Software Foundation, Inc.It uses features that some versions of M4, including GNU M4 1.3, do not have.