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 Using `autoreconf' to Update `configure' Scripts
 ================================================
 
    Installing the various components of the GNU Build System can be
 tedious: running `autopoint' for Gettext, `automake' for `Makefile.in'
 etc. in each directory.  It may be needed either because some tools
 such as `automake' have been updated on your system, or because some of
 the sources such as `configure.ac' have been updated, or finally,
 simply in order to install the GNU Build System in a fresh tree.
 
    `autoreconf' runs `autoconf', `autoheader', `aclocal', `automake',
 `libtoolize', and `autopoint' (when appropriate) repeatedly to update
 the GNU Build System in the specified directories and their
 subdirectories ( Subdirectories).  By default, it only remakes
 those files that are older than their sources.
 
    If you install a new version of some tool, you can make `autoreconf'
 remake _all_ of the files by giving it the `--force' option.
 
     Automatic Remaking, for `Makefile' rules to automatically
 remake `configure' scripts when their source files change.  That method
 handles the timestamps of configuration header templates properly, but
 does not pass `--autoconf-dir=DIR' or `--localdir=DIR'.
 
 `autoreconf' 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'
      Print the name of each directory where `autoreconf' runs
      `autoconf' (and `autoheader', if appropriate).
 
 `--debug'
 `-d'
      Don't remove the temporary files.
 
 `--force'
 `-f'
      Remake even `configure' scripts and configuration headers that are
      newer than their input files (`configure.ac' and, if present,
      `aclocal.m4').
 
 `--install'
 `-i'
      Copy missing auxiliary files.  This option is similar to the option
      `--add-missing' in `automake'.
 
 `--symlink'
 `-s'
      Instead of copying missing auxiliary files, install symbolic links.
 
 `--include=DIR'
 `-I DIR'
      Append DIR to the include path.  Multiple invocations accumulate.
 
 `--prepend-include=DIR'
 
 `-B DIR'
      Prepend DIR to the include path.  Multiple invocations accumulate.
 

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(autoconf.info.gz) Making configure Scripts