---
name: "autoupdate2.64"
section: "1"
platform: "linux"
package: "autoconf2.64"
version: "2.64+dfsg-1.1"
release: "Debian 12 (Bookworm)"
platforms: ["linux"]
url: "https://new.carta.tech/autoupdate2.64"
---

# autoupdate2.64(1)

Update a configure.in to a newer Autoconf

## NAME

autoupdate - Update a configure.in to a newer Autoconf

## SYNOPSIS

**autoupdate** \[*OPTION*\]... \[*TEMPLATE-FILE*\]...

## DESCRIPTION

Update each TEMPLATE-FILE if given, or \`configure.ac' if present, or else \`configure.in', to the syntax of the current version of Autoconf.  The original files are backed up.

### 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 files obsolete

### Library directories:

- **-B**, **--prepend-include**=*DIR*

  prepend directory DIR to search path

- **-I**, **--include**=*DIR*

  append directory DIR to search path

## AUTHOR

Written by David J. MacKenzie and Akim Demaille.

## REPORTING BUGS

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

## COPYRIGHT

Copyright © 2009 Free Software Foundation, Inc. License GPLv2+: GNU GPL version 2 or later \<http://gnu.org/licenses/old-licenses/gpl-2.0.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)](/autoconf/1.md), [**automake**(1)](/automake/1.md), [**autoreconf**(1)](/autoreconf/1.md), [**autoupdate**(1)](/autoupdate/1.md), [**autoheader**(1)](/autoheader/1.md), [**autoscan**(1)](/autoscan/1.md), [**config.guess**(1)](/config.guess/1.md), [**config.sub**(1)](/config.sub/1.md), [**ifnames**(1)](/ifnames/1.md), [**libtool**(1)](/libtool/1.md).

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

-

  **info autoupdate**

should give you access to the complete manual.