(autoconf.info.gz) Notices

(autoconf.info.gz) Initializing configure

 
 Notices in `configure'
 ======================
 
    The following macros manage version numbers for `configure' scripts.
 Using them is optional.
 
  - Macro: AC_PREREQ (VERSION)
      Ensure that a recent enough version of Autoconf is being used.  If
      the version of Autoconf being used to create `configure' is earlier
      than VERSION, print an error message to the standard error output
      and do not create `configure'.  For example:
 
           AC_PREREQ(2.54)
 
      This macro is the only macro that may be used before `AC_INIT', but
      for consistency, you are invited not to do so.
 
  - Macro: AC_COPYRIGHT (COPYRIGHT-NOTICE)
      State that, in addition to the Free Software Foundation's
      copyright on the Autoconf macros, parts of your `configure' are
      covered by the COPYRIGHT-NOTICE.
 
      The COPYRIGHT-NOTICE will show up in both the head of `configure'
      and in `configure --version'.
 
  - Macro: AC_REVISION (REVISION-INFO)
      Copy revision stamp REVISION-INFO into the `configure' script,
      with any dollar signs or double-quotes removed.  This macro lets
      you put a revision stamp from `configure.ac' into `configure'
      without RCS or `cvs' changing it when you check in `configure'.
      That way, you can determine easily which revision of
      `configure.ac' a particular `configure' corresponds to.
 
      For example, this line in `configure.ac':
 
           AC_REVISION($Revision: 1.30 $)
 
      produces this in `configure':
 
           #! /bin/sh
           # From configure.ac Revision: 1.30

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