| autoconf | 
                    Produces shell scripts that automatically configure
                    software source code packages to adapt to many kinds of
                    Unix-like systems. The configuration scripts it produces
                    are independent—running them does not require the
                    autoconf
                    program.
                   | 
              
                | autoheader | 
                    A tool for creating template files of C #define statements for
                    configure to use
                   | 
              
                | autom4te | 
                    A wrapper for the M4 macro processor
                   | 
              
                | autoreconf | 
                    Automatically runs autoconf, autoheader,
                    aclocal,
                    automake,
                    gettextize,
                    and libtoolize in the correct order
                    to save time when changes are made to
                    autoconf
                    and automake template files
                   | 
              
                | autoscan | 
                    Helps to create a configure.in
                    file for a software package; it examines the source files
                    in a directory tree, searching them for common
                    portability issues, and creates a configure.scan file that serves as as a
                    preliminary configure.in file
                    for the package
                   | 
              
                | autoupdate | 
                    Modifies a configure.in file
                    that still calls autoconf macros by their old
                    names to use the current macro names
                   | 
              
                | ifnames | 
                    Helps when writing configure.in
                    files for a software package; it prints the identifiers
                    that the package uses in C preprocessor conditionals. If
                    a package has already been set up to have some
                    portability, this program can help determine what
                    configure
                    needs to check for. It can also fill in gaps in a
                    configure.in file generated by
                    autoscan
                   |