File: autoconf.info,  Node: Help Formatting,  Next: External Software,  Up: Site Configuration

15.1 Controlling Help Output
============================

Users consult ‘configure --help’ to learn of configuration decisions
specific to your package.  By default, ‘configure’ breaks this output
into sections for each type of option; within each section, help strings
appear in the order ‘configure.ac’ defines them:

     Optional Features:
       ...
       --enable-bar            include bar

     Optional Packages:
       ...
       --with-foo              use foo

 -- Macro: AC_PRESERVE_HELP_ORDER

     Request an alternate ‘--help’ format, in which options of all types
     appear together, in the order defined.  Call this macro before any
     ‘AC_ARG_ENABLE’ or ‘AC_ARG_WITH’.

          Optional Features and Packages:
            ...
            --enable-bar            include bar
            --with-foo              use foo