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Info Node: (autoconf.info)Invoking autoupdate

(autoconf.info)Invoking autoupdate


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Using `autoupdate' to Modernize `configure'
===========================================

   The `autoupdate' program updates a `configure.in' 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: Old Macro Names, for a list of the old macro names and the
corresponding new names), you can make your `configure.in' 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.in', 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.in' 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.

`--macrodir=DIR'
`-m DIR'
     Look for the Autoconf macro files in directory DIR instead of the
     default installation directory.  You can also set the `AC_MACRODIR'
     environment variable to a directory; this option overrides the
     environment variable.

`--version'
     Print the version number of `autoupdate' and exit.


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