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File: autoconf.info, Node: autoupdate Invocation, Next: Obsolete Macros, Prev: acconfig Header, Up: Obsolete Constructs
18.3 Using `autoupdate' to Modernize `configure.ac'
===================================================
The `autoupdate' program updates a `configure.ac' file that calls
Autoconf macros by their old names to use the current macro names. In
version 2 of Autoconf, most of the macros were renamed to use a more
uniform and descriptive naming scheme. *Note Macro Names::, for a
description of the new scheme. Although the old names still work
(*note Obsolete Macros::, for a list of the old macros and the
corresponding new names), you can make your `configure.ac' files more
readable and make it easier to use the current Autoconf documentation
if you update them to use the new macro names.
If given no arguments, `autoupdate' updates `configure.ac', backing
up the original version with the suffix `~' (or the value of the
environment variable `SIMPLE_BACKUP_SUFFIX', if that is set). If you
give `autoupdate' an argument, it reads that file instead of
`configure.ac' and writes the updated file to the standard output.
`autoupdate' accepts the following options:
`--help'
`-h'
Print a summary of the command line options and exit.
`--version'
`-V'
Print the version number of Autoconf and exit.
`--verbose'
`-v'
Report processing steps.
`--debug'
`-d'
Don't remove the temporary files.
`--force'
`-f'
Force the update even if the file has not changed. Disregard the
cache.
`--include=DIR'
`-I DIR'
Also look for input files in DIR. Multiple invocations accumulate.
Directories are browsed from last to first.
`--prepend-include=DIR'
`-B DIR'
Prepend directory DIR to the search path. This is used to include
the language-specific files before any third-party macros.
Generated by $Id: phpMan.php,v 4.55 2007/09/05 04:42:51 chedong Exp $ Author: Che Dong
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