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@@ -40,6 +40,25 @@ running `autoconf --version'. Archives of bug-autoconf@gnu.org can be
found in <http://lists.gnu.org/archive/html/bug-autoconf/>, and
similarly for the other mailing lists.
+Licensing
+
+Autoconf is released under the General Public License (GPL).
+Additionally, Autoconf includes a licensing exception in some of its
+source files; see the respective copyright notices for how your
+project is impacted by including scripts generated by Autoconf.
+
+This version of Autoconf uses GPLv2+ plus the above-mentioned
+exceptions for its installed executables, as described in COPYING.
+Meanwhile, several source files within the Autoconf project are under
+GPLv3+, as described in COPYINGv3; these files are used for building
+and installing Autoconf, but are not present in the installed
+programs. The entire Autoconf project will move to GPLv3+ when the
+exception statements have been reformulated in terms of the Additional
+Permissions as described in section 7 of GPLv3.
+
+For more licensing information, see
+<http://www.gnu.org/licenses/gpl-faq.html>.
+
-----
Copyright (C) 1992, 1993, 1994, 1998, 2000, 2001, 2002, 2003, 2004,