{
Property: AX_PREFIX_CONFIG_H macro
Author: Guiodo Draheim <guidod@gmx.de>
URL: http://ac-archive.sourceforge.net/copyright.html

Every Autoconf macro presented on this web site is free software; you can
redistribute it and/or modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either version 2, or (at
your option) any later version.

As a special exception, the Free Software Foundation gives unlimited
permission to copy, distribute and modify the configure scripts that are the
output of Autoconf. You need not follow the terms of the GNU General Public
License when using or distributing such scripts, even though portions of the
text of Autoconf appear in them. The GNU General Public License (GPL) does
govern all other use of the material that constitutes the Autoconf program.

Certain portions of the Autoconf source text are designed to be copied (in
certain cases, depending on the input) into the output of Autoconf. We call
these the "data" portions. The rest of the Autoconf source text consists of
comments plus executable code that decides which of the data portions to
output in any given case. We call these comments and executable code the
"non-data" portions. Autoconf never copies any of the non-data portions into
its output.

This special exception to the GPL applies to versions of Autoconf released by
the Free Software Foundation. When you make and distribute a modified version
of Autoconf, you may extend this special exception to the GPL to apply to your
modified version as well, *unless* your modified version has the potential to
copy into its output some of the text that was the non-data portion of the
version that you started with. (In other words, unless your change moves or
copies text from the non-data portions to the data portions.) If your
modification has such potential, you must delete any notice of this special
exception to the GPL from your modified version.
}
