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autoreconf 2.52.20181006
October 2018


automatic configure script builder (Thomas Dickey's version)


autoreconf - Update generated configuration files


autoreconf [\,OPTION\/] ... [\,TEMPLATE-FILE\/]


Run ‘autoconf’ (and ‘autoheader’, ‘aclocal’ and ‘automake’, where appropriate) repeatedly to remake the Autoconf ‘configure’ scripts and configuration header templates in the directory tree rooted at the current directory. By default, it only remakes those files that are older than their predecessors. If you install a new version of Autoconf, running ‘autoreconf’ remakes 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 every files are obsolete
-i, --install
copy missing auxiliary files
-s, --symlink
instead of copying, install symbolic links
The option ‘--install’ is similar to the option ‘--add-missing’ in other tools.

Library directories:

-A, --autoconf-dir=\,ACDIR\/
Autoconf’s macro files location (rarely needed)
-l, --localdir=\,DIR\/
location of ‘aclocal.m4’ and ‘acconfig.h’
-M, --m4dir=\,M4DIR\/
this package’s Autoconf extensions
Unless specified, heuristics try to compute ‘M4DIR’ from the ‘’, or defaults to ‘m4’ if it exists.

The following options are passed to ‘automake’:

assume program is part of Cygnus-style tree
set strictness to foreign
--gnits set strictness to gnits
--gnu set strictness to gnu
include generated dependencies in
The environment variables AUTOCONF, AUTOHEADER, AUTOMAKE, and ACLOCAL are honored.


Written by David J. MacKenzie.


Report bugs to <>.


Copyright 1994, 1999, 2000 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


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.
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