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3.2.2. Configuration Script

The most crucial function of Autotools is the creation of the configure script. This script tests systems for tools, input files, and other features it can use in order to build the project [1]. The configure script generates a Makefile which allows the make tool to build the project based on the system configuration.
To create the configure script, first create an input file. Then feed it to an Autotools utility in order to create the configure script. This input file is typically or; the former is usually processed by autoconf, while the later is fed to automake.
If a input file is available, the automake utility creates a Makefile template (that is, Makefile. in), which may see information collected at configuration time. For example, the Makefile may have to link to a particular library if and only if that library is already installed. When the configure script runs, automake will use the Makefile. in templates to create a Makefile.
If a file is available instead, then autoconf will automatically create the configure script based on the macros invoked by To create a preliminary, use the autoscan utility and edit the file accordingly.

[1] For information about tests that configure can perform, see the following link: