NAME

       autoreconf - Update generated configuration files

SYNOPSIS

       autoreconf [OPTION]... [DIRECTORY]...

DESCRIPTION

       Run   'autoconf'  and,  when  needed,  'aclocal',  'autoheader',  'automake',  'autopoint'
       (formerly 'gettextize'), 'libtoolize', 'intltoolize', and 'gtkdocize'  to  regenerate  the
       GNU  Build  System  files in specified DIRECTORIES and their subdirectories (defaulting to
       '.').

       By default, it only remakes those files that are older than their sources.  If you install
       new versions of the GNU Build System, you can make 'autoreconf' remake all of the files by
       giving it the '--force' option.

   Operation modes:
       -h, --help
              print this help, then exit

       -V, --version
              print version number, then exit

       -v, --verbose
              verbosely report processing

       -d, --debug
              don't remove temporary files

       -f, --force
              consider all generated and standard files obsolete

       -i, --install
              copy missing standard auxiliary files

       --no-recursive
              don't rebuild sub-packages

       -s, --symlink
              with -i, install symbolic links instead of copies

       -m, --make
              when applicable, re-run ./configure && make

       -W, --warnings=CATEGORY
              report the warnings falling in CATEGORY [syntax]

   Warning categories include:
       cross  cross compilation issues

       gnu    GNU coding standards (default in gnu and gnits modes)

       obsolete
              obsolete features or constructions (default)

       override
              user redefinitions of Automake rules or variables

       portability
              portability issues (default in gnu and gnits modes)

       portability-recursive
              nested Make variables (default with -Wportability)

       extra-portability
              extra portability issues related to obscure tools

       syntax dubious syntactic constructs (default)

       unsupported
              unsupported or incomplete features (default)

       all    all the warnings

       no-CATEGORY
              turn off warnings in CATEGORY

       none   turn off all the warnings

       error  treat warnings as errors

       The environment variable 'WARNINGS' is honored.  Some subtools might support other warning
       types, using 'all' is encouraged.

   Library directories:
       -B, --prepend-include=DIR
              prepend directory DIR to search path

       -I, --include=DIR
              append directory DIR to search path

       The  environment  variables  AUTOCONF, ACLOCAL, AUTOHEADER, AUTOM4TE, AUTOMAKE, AUTOPOINT,
       GTKDOCIZE, INTLTOOLIZE, LIBTOOLIZE, M4, and MAKE are honored.

AUTHOR

       Written by David J. MacKenzie and Akim Demaille.

REPORTING BUGS

       Report bugs to <bug-autoconf@gnu.org>.
       GNU Autoconf home page: <https://www.gnu.org/software/autoconf/>.
       General help using GNU software: <https://www.gnu.org/gethelp/>.

COPYRIGHT

       Copyright © 2021 Free Software Foundation, Inc.  License GPLv3+/Autoconf: GNU GPL  version
       3 or later <https://gnu.org/licenses/gpl.html>, <https://gnu.org/licenses/exceptions.html>
       This  is free software: you are free to change and redistribute it.  There is NO WARRANTY,
       to the extent permitted by law.

SEE ALSO

       autoconf(1),  automake(1),  autoreconf(1),  autoupdate(1),   autoheader(1),   autoscan(1),
       config.guess(1), config.sub(1), ifnames(1), libtool(1).

       The  full documentation for autoreconf is maintained as a Texinfo manual.  If the info and
       autoreconf programs are properly installed at your site, the command

              info autoreconf

       should give you access to the complete manual.