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. See section Macro Names, for a
description of the new scheme. Although the old names still work
(see section 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
autoupdate accepts the following options:
AC_MACRODIRenvironment variable to a directory; this option overrides the environment variable.
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