'''Build configuration''' is the step in building software that determines the characterstics and features of the the platform for which the software is to be built. ** Tcl Tools ** [autosetup], by [Steve Bennett]: ** Other Tools ** [autoconf]: Creates a [shell] script, normally called "configure", that can then be distributed with the software, and is run at build time to probe the target system. [Cmake]: Handles all stages of a build, including configuration <> build tool